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wireless lan
(1549 results)-
White Papers
Performance Analysis of Wired and Wireless LAN Using Soft Computing Techniques - A Review
Sep 2010
The wired Computer Networks provide a secure and faster means of connectivity but the need of mobility i.e. anywhere, anytime and anyone access is tilting the network users towards wireless...
Provided by Global Journals
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White Papers
Research and Design of Mine Electromechanical Equipment Closed-Loop Inspection System Based on Wireless Sensor Network
Aug 2010
This paper has analyzed the Significance of applying point-Inspection-system in Coal mining enterprises and proposed a solution of electromechanical equipment closed-loop inspection system....
Provided by Northwestern Polytechnical University
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White Papers
Fine-Grained Channel Access in Wireless LAN
Sep 2010
Modern communication technologies are steadily advancing the PHYsical Layer (PHY) data rate in wireless LANs, from hundreds of Mbps in current 802.11n to over Gbps in the near future. As PHY data...
Provided by BeiHang University
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White Papers
Mobile Agents in Wireless LAN and Cellular Data Networks
Jan 2010
Advancing technology in wireless communication offers users anytime, anywhere access to information and network resources without restricting them to the fixed network infrastructure. Mobile...
Provided by Science Publications
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White Papers
QR-RLS Based Adaptive Channel TEQ for OFDM Wireless LAN
Aug 2007
In this paper, QR-RLS based TEQ adapting is proposed. For QR decomposition two methods, Gram Schmidt orthogonalization process and Givens rotation are used and compared in terms of computational...
Provided by DA-IICT
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White Papers
802.11 Wireless LAN Multiplayer Game Capacity and Optimization
Oct 2009
Real-time multiplayer games are a popular application of networks and as IEEE 802.11 wireless networks are widely used, games are expected to be widely played on wireless networks. However, 802.11...
Provided by National University Of Ireland
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White Papers
Wireless LANS
Sep 2010
Interest in wireless local area networks (wireless LANs or WLANs) has been growing exponentially since late 2001, the year that first saw the deployment of wireless LANs in a number of public...
Provided by American Library Association
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White Papers
Wireless Control for an Induction Motor
Sep 2010
This paper discusses the development of wireless structure control of an induction motor scalar drives. This was realised up on the wireless WiFi networks. This strategy of control is ensured by...
Provided by Alumni.NET
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White Papers
IEEE WLANs Standards for Mobile Ad-Hoc Networks (MANETs): Performance Analysis
Nov 2010
Mobile Ad hoc NETworks(MANETs) catch the great attention of researchers because of its unique characteristics like independent of infrastructure, dynamic topology behavior, limited energy source,...
Provided by Kurukshetra University
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White Papers
Wireless LAN Security System
Jan 2010
In just the past few years wireless LAN has come to occupy a significant niche in the local area network market. Increasingly. Organization are finding that WLAN are an indispensable adjunct to...
Provided by Foundation University Islamabad (FUI)
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White Papers
Analyzing WLANs Standards for Wireless Sensor Network
Jan 2011
Wireless sensor network is a special kind of wireless network, design to communicate with distributes wireless nodes (Which supplies the information). Data collection from leaf sensor node to the...
Provided by Kurukshetra University
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Whitepapers
The Convergence of Enterprise Telecom Services: BlackBerry Mobile Voice System on the Aruba Networks Wireless LAN Infrastructure
Apr 2010
Modern enterprises are becoming more widely distributed, and workers are increasingly mobile. Fewer employees are working in large corporate offices, with estimates of the remote workforce as high...
Provided by Aruba Networks
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Whitepapers
Operating Wireless LANs for High Reliability and Performance: Six Best Practices That You Can Implement Today
Jun 2010
802.11n technologies have reached maturity. They are reliable, high-performing, dependable, secure, and often very affordable. These characteristics are making it possible to offer the benefits of...
Provided by Aruba Networks
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Whitepapers
AirWave VisualRF Location and Mapping: Improving Operations Efficiency Throughout the Wireless Network Lifecycle
Aug 2009
Driven by the need for mobility, higher productivity and cost reductions through network rightsizing, wireless networks are becoming ubiquitous within all enterprises, government organizations and...
Provided by Aruba Networks
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Whitepapers
Driving Operational Efficiency: A Guide to Using AirWave Wireless Management Suite for Service Desk Troubleshooting
Nov 2010
In a typical IT organization, the service desk takes incoming user support calls and determines whether the problem is an individual user or device issue or a broader network issue that might...
Provided by Aruba Networks
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Whitepapers
Using AirWave RAPIDS Rogue Detection to Implement Your Wireless Security and PCI Compliance Strategy
Aug 2010
Wireless LANs (WLANs) are quickly becoming the connectivity platform of choice across all types of organizations because of their flexibility, convenience and ability to improve productivity. As...
Provided by Aruba Networks
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White Papers
The Challenges of Accurate Mobility Prediction for Ultra Mobile Users
Feb 2009
Realistic modeling of user mobility is one of the most critical research areas in wireless networks. Currently, several mobility models are proposed based on the analysis of real WLAN traces....
Provided by University Of Florida, Gainesville
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White Papers
Human Behavior and Challenges of Anonymizing WLAN Traces
Oct 2009
With the wide spread deployment of Wireless LANs (WLANs), it is becoming necessary to conduct analysis of libraries of measurements taken from such operational networks. The availability of these...
Provided by University of Florida
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White Papers
Gender-Based Grouping of Mobile Student Societies
Jan 2008
The next frontier for sensor networks is sensing the human society. Several mobile societies are emerging, especially with wide deployment of Wireless LANs (WLANs) on campuses. With the rapid...
Provided by University Of Florida, Gainesville
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White Papers
Gender-Based Feature Analysis in Campus-Wide WLANs
Jun 2007
WLAN deployment across university campuses has risen rapidly in recent years. There has been a marked increase in mobile users and traffic as a result. Analyzing usage of WLAN is currently a major...
Provided by University of Florida
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White Papers
Comparing Mobility and Predictability of VoIP and WLAN Traces
Sep 2007
Realistic modeling of user mobility is one of the most critical research areas in wireless networks. Mobility data based on real human behaviors may give them the opportunity to improve wireless...
Provided by University of Florida
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White Papers
Performance Analysis of Convolution Coded WLAN Physical Layer Under Different Modulation Techniques
Oct 2010
WLAN plays an important role as a complement to the existing or planned cellular networks which can offer high speed voice, video and data service up to the customer end. The aim of this paper is...
Provided by Educate India Society
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White Papers
Design and Experimental Evaluation of Multi-User Beamforming in Wireless LANs
Sep 2010
Multi-User MIMO promises to increase the spectral efficiency of next generation wireless systems and is currently being incorporated in future industry standards. Although a significant amount of...
Provided by Association for Computing Machinery
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White Papers
Collision-Aware Rate Adaptation in multi-rate WLANs: Design and implementation
Jun 2010
Many rate adaptation algorithms have been proposed for IEEE 802.11 Wireless LAN devices and most of them operate in an open-loop manner, i.e., the transmitter adapts its transmission rate without...
Provided by Elsevier
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White Papers
Energy-conservation in 802.11 WLANs via Transmission-strategy-aware Airtime Allocation
Apr 2008
In a typical 802.11 Wireless Local Area Network (WLAN), different wireless stations may communicate with the Access Point (AP) with different transmission rates, transmit-power levels, and data...
Provided by Elsevier
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White Papers
Privacy Analysis of User Association Logs in a Large-Scale Wireless LAN
Jan 2011
User association logs collected from a large-scale wireless LAN record where and when a user has used the network. Such information plays an important role in wireless network research. One...
Provided by Dartmouth College
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White Papers
A Lagrangian Approach for the Optimal Placement of Wireless Relay Nodes in Wireless Local Area Networks
Jan 2011
The throughput capacity of WLANs can be improved the authors propose an optimization formulation based on Lagrangian relaxation and a subgradient algorithm to compute the best placement of a fixed...
Provided by University of Toronto
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White Papers
Analytical Study of TCP Performance Over IEEE 802.11e WLANs
Oct 2008
IEEE 802.11 Wireless LAN (WLAN) has become a prevailing solution for broadband wireless Internet access while the Transport Control Protocol (TCP) is the dominant transport-layer protocol in the...
Provided by Springer Science+Business Media
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White Papers
Energy-Efficient Airtime Allocation in Multi-Rate Multi-Power-Level Wireless LANs
Aug 2007
This paper considers the energy-conservation problem in multi-rate multi-power-level Wireless Local Area Networks (WLANs). This problem is addressed from a unique angle the system-level fairness...
Provided by Association for Computing Machinery
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White Papers
Interference Analysis and Transmit Power Control in IEEE 802.11a/h Wireless LANs
Oct 2007
Reducing the energy consumption by wireless communication devices is perhaps the most important issue in the widely deployed and dramatically growing IEEE 802.11 WLANs (Wireless Local Area...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
A Monolithic High-Efficiency 2.4-GHz 20-DBm SiGe BiCMOS Envelope-Tracking OFDM Power Amplifier
Jun 2007
A monolithic SiGe BiCMOS envelope-tracking Power Amplifier (PA) is demonstrated for 802.11g OFDM applications at 2.4 GHz. The 4-mm2 die includes a high-efficiency high-precision envelope amplifier...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
A Low Insertion Loss, High Linearity, T/R Switch in 65 Nm Bulk CMOS for WLAN 802.11g Applications
Jan 2008
A Transmit-Receiver (T/R) switch is fabricated in a 65 nm CMOS process for WLAN 802.11g applications. By floating the triple well device, the switch achieves low insertion loss, high power...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Multimedia Wireless Transmission With Network Coding
Sep 2007
In recent years, Wireless Local Area Networks (WLAN) have become the premier choice for many homes and enterprises. WiMAX (Worldwide Interoperability for Microwave Access) has also emerged as the...
Provided by Oregon State University
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White Papers
Traffic Capacity of Multi-Cell WLANs
Jun 2008
Performance of WLANs has been extensively studied during the past few years. While the focus has mostly been on isolated cells, the coverage of WLANs is in practice most often realized through...
Provided by Association for Computing Machinery
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White Papers
Deterministic Structured Network Coding For WWAN Video Broadcast With Cooperative Peer-to-Peer Repair
Sep 2010
Recent research has exploited the multi-homing property (one terminal with multiple network interfaces) of modern devices to improve communication performance in wireless networks. Cooperative...
Provided by University of California, Davis
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White Papers
An Empirical Activity Model for WLAN Users
Jan 2008
Understanding user behavior in wireless environments is useful for a variety of reasons ranging from the design of better sleep algorithms for components of mobile devices to appropriately...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Opportunistic Waiver of Data Reception for Exploiting Multiuser Diversity in the Uplink of IEEE 802.11 WLAN
Jan 2008
In this paper, the authors consider how to exploit multiuser diversity in the uplink of IEEE 802.11 WLAN when its uplink and downlink are asymmetric. In the uplink, there is no central node that...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Approximation Algorithms for Scheduling Real-Time Multicast Flows in Wireless LANs
Jan 2008
In recent years, numerous large-scale Wireless LANs (WLAN) have been deployed all over the world. However, the shortage of non-interfering channels makes it a challenge for WLANs to efficiently...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Delay Tolerant Collaborations Among Campus-Wide Wireless Users
Jan 2008
The ubiquitous deployments of wireless LAN networks are allowing students to embrace laptops as their preferred computing platform. The authors investigated the viability of building collaborative...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Log-Convexity of Rate Region in 802.11e WLANs
Feb 2011
In a WLAN context, rate region properties have mainly been studied for Aloha networks. The log-convexity of the Aloha rate region in general mesh network settings has been established by several...
Provided by National University of Ireland, Maynooth
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Whitepapers
Fuzzy Topographic Modeling in Wireless Signal Tracking Analysis
Jul 2009
Fuzzy logic modelling can be applied to evaluate the behaviour of Wireless Local Area Networks (WLAN) Received Signal Strength (RSS). The behavior study of WLAN signal strength is a pivotal part...
Provided by Hong Kong Polytechnic University
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Whitepapers
Using the Newton Trust-Region Method to Localize in WLAN Environment
Dec 2009
Localization systems for indoor areas using the existing Wireless Local Area Network (WLAN) infrastructure have been suggested recently. However, the current systems are not satisfactory. Common...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Using a Cell-Based WLAN Infrastructure Design for Resource-Effective and Accurate Positioning
Dec 2009
A large scale WLAN infrastructure requires the placement of many thousands of Access Points (APs). The current approach is to deploy these in an empirical and ad-hoc manner. However, this...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Low Profile, Dual Polarised Antenna for Aeronautical and Land Mobile Satcom
Jun 2008
Two of the major developments reshaping the telecommunications landscape are mobile wireless connectivity and the migration of voice telephone services to IP technology. These two ideas come...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
A Simple and Fast Detect and Avoid Algorithm for Non-Coherent Multiband Impulse Radio UWB
Jul 2008
In this paper, the authors present a simple and fast Detect And Avoid (DAA) algorithm for non-coherent multiband impulse radio UWB. By independent parallelized interception of all subbands, this...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
WLAN/WDS Performance Using Directive Antennas in Highly Mobile Scenarios: Experimental Results
Jun 2008
This paper presents experimental results from a series of IEEE 802.11g studies to investigate the performance of vehicular to roadside wireless communications. In particular, two high-gain...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Game-Theoretic Cross-Layer Design in WLANs
Jun 2008
In this paper, an incompletely cooperative game-theoretic MAC protocol is presented to improve the performance of WLANs. Firstly, each node estimates the current game state upon running CSMA/CA....
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Efficient Mobility Management Protocols for Integrated UMTS and Outdoor WLAN 802.11g
Jun 2008
Next Generation (4G) network can be achieved through the interworking of several existing architecture to form a seamless global network. The need for a high speed (mobility) support, ubiquitous...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Study and Design of QoS-Based VoIP Over Wireless LAN
Jun 2008
Two of the major developments reshaping the telecommunications landscape are mobile wireless connectivity and the migration of voice telephone services to IP technology. These two ideas come...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
A New Method for Measuring Interference Between UWB and Wireless LAN Systems
Jun 2008
A new method for experimentally simulating the interference between UWB (Ultra WideBand) and WLAN (Wireless LAN) systems is presented. The method employs a GTEM (Gigahertz Transverse...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
A Throughput-Based Radio Channel Allocation Algorithm for WLANs With Multiple APs
Jun 2008
Usually, the Radio Channel Allocation (RCA) problems of Wireless LANs (WLANs) are solved by using various heuristic methods. However, it is not clear that the minmax problem is an NP-hard problem...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Channel Occupancy Time Based TCP Rate Control for IEEE 802.11 DCF
Jun 2008
In multi-rate IEEE 802.11 wireless LAN, when multiple stations transmit frames at different data rates, the Basic Service Set (BSS) suffers from "Performance anomaly" problem. In this paper, to...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Improved Axial-Mode-Helical-Antenna Impedance Matching Utilizing Triangular Copper Strip for 2.4- GHz WLAN
Jun 2008
In this paper, impedance matching for a PVC-tube helical antenna operating at the frequency of 2.4 GHz is experimentally investigated. The helical wire is wound around a Poly-Vinyl Chloride (PVC)...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Dynamic Channel Assignment in IEEE 802.11g
Jun 2008
In this paper, the authors propose a dynamic channel-assignment algorithm which minimizes the total interferences between Access Points (APs) of a Wireless Local Area Network (WLAN), while...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Laboratory Assessment of WLAN Performance Degradation in the Presence of Impulsive Noise
Jun 2008
A laboratory test to assess the impact of impulsive noise on the performance of WLAN equipment is described. The test is put in the context of a larger programme of work to assess the performance...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Distributed Opportunistic Packet Scheduling Policy in Wireless LANs
Jul 2008
Due to the fluctuations of wireless channels, the authors can use opportunistic scheduling to exploit multiuser diversity. The conventional opportunistic scheduling is not applied to wireless LANs...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Optimisation of Radio Access Network Operation Introducing Self-X Functions
Mar 2009
With the deployment of next generation (4G) mobile radio systems an additional radio access network is established. A variety of different Radio Access Technologies (RATs) will be operated in...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
On the Processor Sharing of File Transfers in Wireless LANs
Mar 2009
The authors study the performance of FTP file transfers over a WLAN and propose a new analytic model that translates the highly complex dynamics of the FTP/TCP/IP/MAC-stack, and their...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Towards an Optimisation of Parameters Setting in WLANs
Mar 2009
This paper studies performance optimisation in WLANs, by means of Quality of Service (QoS) algorithms. The 802.11e standard for QoS is analyzed, compared to legacy ones, new algorithms being...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Characterization of Vertical Handoff Delay for Mobile IP Based 3G/WLAN Integrated Networks
Mar 2009
Mobile IP is one of the popular mobility solution and a viable candidate for the Beyond 3rd Generation (B3G) networks such as the integrated 3rd Generation Universal Mobile Telecommunications...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
WLAN-Based Real Time Vehicle Locating System
Mar 2009
This paper presents a Wireless Local Area Network (WLAN)-based real time system for indoors and outdoors vehicle localization. The proposed solution uses a neural network trained with a map of...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Frame Aggregation and Concatenation Schemes for IEEE EDCF 802.11e: A First Order MAC and PHY Cross-Layer Model to Estimate the Throughput
Mar 2009
The IEEE 802.11 MAC protocol has several overheads that limit the maximum net throughput. Therefore, different from PHY layer enhancements of 802.11a/.11g, the upcoming IEEE 802.11n standard will...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
A Bandwidth Efficient Pairing Strategy for the MIMO-OFDM Based WLANs
Mar 2009
The advanced MIMO (Multiple-Input Multiple-Output) system can provide higher capacity gain or higher diversity gain in modern wireless networks. The capacity gain is achieved by interference...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Impact of Best Effort Frame Bursting in IEEE 802.11 Networks
Mar 2009
Wireless LAN strongly prioritizes high priority traffic over low priority best effort traffic. This causes reduced access to the medium for low priority traffic and under some conditions even...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Dynamic Contention Window Control Scheme in IEEE 802.11e Wireless LANs
Mar 2009
In the IEEE 802.11 MAC protocol, Access Points (APs) are given the same authority as Wireless Terminals (WTs) in terms of acquiring the wireless link, even though they aggregate several downlink...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Cross-Layer-Optimized User Grouping Strategy in Downlink Multiuser MIMO Systems
Mar 2009
This paper proposes a cross-layer-optimized user selection and packet transmission technique for the downlink Multi-User (MU) Multiple-Input Multiple-Output (MIMO) system in IEEE 802.11 Wireless...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Comparison of Spectrum Sharing Techniques for IMT-A Systems in Local Area Networks
Mar 2009
The explosive growth of mobile communications on one hand and the overly crowded and expensive spectrum on the other hand have fueled hot debates on spectrum sharing techniques, anticipating...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
SAP Insider Article: Elevating your Procurement Organization from Knee Jerk Reactions to Predictive Analytics
Jul 2012
This executive insight, provided by the Enterprise Mobility Foundation, examines the need for organizations to deploy a holistic enterprise mobility management solution that goes well beyond...
Provided by SAP
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Whitepapers
Autonomous Dynamic Frequency Selection for WLANs Operating in the TV White Space
Apr 2011
This paper describes the challenges of frequency channel selection for WLANs operating in the TV White Space (TVWS) and proposes a Dynamic Frequency Selection (DFS) technique as the solution....
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Throughput Analysis of a Cognitive IEEE 802.11 WLAN Sharing the Downlink Band of a Cellular Network
Apr 2011
In this paper, the authors propose an analytical model to evaluate the maximum stable throughput of a cognitive IEEE 802.11-based WLAN sharing the downlink band of a cellular network. Their model...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Wireless Indoor Positioning System With Enhanced Nearest Neighbors in Signal Space Algorithm
Feb 2007
With the rapid development and wide deployment of wireless Local Area Networks (WLANs), WLAN-based positioning system employing signal-strength-based technique has become an attractive solution...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
An On-Off Queue Control Mechanism for Scalable Video Streaming Over the IEEE 802.11e WLAN
Apr 2009
In this paper, the authors study the issue of scalable video streaming over IEEE 802.11e EDCA WLANs. Their basic idea is to control the number of "Active" nodes on the channel in order to reduce...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Retry Limit Based ULP for Scalable Video Transmission Over IEEE 802.11e WLANs
Jun 2007
The authors investigate the packet loss behavior in the IEEE 802.11e Wireless Local Area Networks (WLANs) under various retry limit settings. Considering scalable video traffic delivery over the...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Out-of-Band Signaling Scheme for High Speed Wireless LANs
Sep 2007
In recent years, the physical layer data rate provided by 802.11 Wireless LANs has dramatically increased thanks to significant advances in the modulation and coding techniques employed. However,...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Stochastic Modeling of Microwave Oven Interference in WLANs
Apr 2011
In IEEE 802.11b/g/n Wireless Local Area Network (WLAN) experiences significant Radio Frequency Interference (RFI) from microwave ovens, cordless phones, Bluetooth devices, and other WLANs...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Analysis of Jamming Effects on IEEE 802.11 Wireless Networks
Apr 2011
IEEE 802.11 wireless transmissions suffer from a big security flaw as they are vulnerable to Denial of Service (DoS) attacks which can degrade severely their performance, especially their achieved...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Performance and Fairness Analysis of a QoS Supportive MAC Protocol for Wireless LANs
Apr 2011
IEEE 802.11e Enhanced Distributed Channel Access (EDCA) is developed to provide Wireless Local Area Networks (WLANs) with Quality of Service (QoS) support. Several solutions have been proposed in...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Control Theoretic Optimization of 802.11 WLANs: Implementation and Experimental Evaluation
Mar 2012
In 802.11 WLANs, adapting the contention parameters to network conditions results in substantial performance improvements. Even though the ability to change these parameters has been available in...
Provided by University Carlos III of Madrid
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Whitepapers
DFMAC: DTN-Friendly Medium Access Control for Wireless Local Area Networks
Jun 2009
In this paper, the authors consider a wireless communication network for both low-speed mobile nodes in densely populated hotspots and high-speed mobile nodes roaming in a large area. Wireless...
Provided by University of Waterloo
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Whitepapers
DTCoop: Delay Tolerant Cooperative Communications in DTN/WLAN Integrated Networks
Sep 2010
In this paper, the authors consider a DTN/WLAN integrated network where nomadic nodes with high mobility comprise a Delay Tolerant Network (DTN) while local nodes with low mobility reside in the...
Provided by Institute of Electrical & Electronic Engineers
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White Papers
Deterministic Structured Network Coding For WWAN Video Broadcast With Cooperative Peer-to-Peer Repair
Sep 2010
Recent research has exploited the multi-homing property (one terminal with multiple network interfaces) of modern devices to improve communication performance in wireless networks. Cooperative...
Provided by University of California, Davis
-
White Papers
An Empirical Activity Model for WLAN Users
Jan 2008
Understanding user behavior in wireless environments is useful for a variety of reasons ranging from the design of better sleep algorithms for components of mobile devices to appropriately...
Provided by Institute of Electrical and Electronics Engineers
-
White Papers
Opportunistic Waiver of Data Reception for Exploiting Multiuser Diversity in the Uplink of IEEE 802.11 WLAN
Jan 2008
In this paper, the authors consider how to exploit multiuser diversity in the uplink of IEEE 802.11 WLAN when its uplink and downlink are asymmetric. In the uplink, there is no central node that...
Provided by Institute of Electrical and Electronics Engineers
-
White Papers
Approximation Algorithms for Scheduling Real-Time Multicast Flows in Wireless LANs
Jan 2008
In recent years, numerous large-scale Wireless LANs (WLAN) have been deployed all over the world. However, the shortage of non-interfering channels makes it a challenge for WLANs to efficiently...
Provided by Institute of Electrical and Electronics Engineers
-
White Papers
Delay Tolerant Collaborations Among Campus-Wide Wireless Users
Jan 2008
The ubiquitous deployments of wireless LAN networks are allowing students to embrace laptops as their preferred computing platform. The authors investigated the viability of building collaborative...
Provided by Institute of Electrical and Electronics Engineers
-
White Papers
Log-Convexity of Rate Region in 802.11e WLANs
Feb 2011
In a WLAN context, rate region properties have mainly been studied for Aloha networks. The log-convexity of the Aloha rate region in general mesh network settings has been established by several...
Provided by National University of Ireland, Maynooth
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White Papers
Balancing Uplink and Downlink Delay of VoIP Traffic in WLANs Using Adaptive Priority Control (APC)
Jan 2011
In IEEE 802.11 wireless networks, the downlink delay rises as the number of VoIP nodes increases while the uplink delay remains small due to the same chance of media access between nodes and the...
Provided by Columbia University
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White Papers
Call Admission Control in IEEE 802.11 WLANs Using QP-CAT
Jan 2008
As IEEE 802.11 networks in a BSS are increasingly used to carry VoIP, concerns about QoS arise. The overall delay of all VoIP flows drastically increases when the number of VoIP sources approaches...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
A Novel Access Method for Supporting Absolute and Proportional Priorities in 802.11 WLANs
Jan 2008
Many researchers have addressed the problem of QoS differentiation in 802.11 wireless networks, however no method proposed so far benefits from all desirable properties: high aggregate throughput...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Proximity Breeds Danger: Emerging Threats in Metro-Area Wireless Networks
Jun 2007
The growing popularity of wireless networks and mobile devices is starting to attract unwanted attention especially as potential targets for malicious activities reach critical mass. In this...
Provided by University of California
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White Papers
Cache-Aware Optimization of BAN Applications
Oct 2008
Body-Area sensor network or BAN-based health monitoring is increasingly becoming a popular alternative to traditional wired bio-monitoring techniques. However, most bio-monitoring applications...
Provided by Association for Computing Machinery
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White Papers
How Physical Carrier Sense Affects System Throughput in IEEE 802.11 Wireless Networks
Jan 2008
In recent years, wireless ad hoc networks have become increasingly popular in both military and civilian applications due to their capability of building networks without the need for a...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Prioritized Repeated Eliminations Multiple Access: A Novel Protocol for Wireless Networks
Jan 2008
A new and simple MAC protocol is proposed. Each node transmits a burst with length sampled from a geometric distribution with parameter q followed by a carrier sense slot. A node repeats the...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Index Policies for Real-Time Multicast Scheduling for Wireless Broadcast Systems
Jan 2008
Motivated by the increasing usage of wireless broadcast networks for multicast real-time applications like video, this paper considers a canonical real-time multicast scheduling problem for a...
Provided by Institute of Electrical and Electronics Engineers
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Whitepapers
Characterizing Mobility and Network Usage in a Corporate Wireless Local-Area Network
Jan 2011
Wireless local-area networks are becoming increasingly popular. They are commonplace on university campuses and inside corporations, and they have started to appear in public areas. It is thus...
Provided by IBM
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White Papers
All Bits Are Not Equal - A Study of IEEE 802.11 Communication Bit Errors
May 2009
In IEEE 802.11 Wireless LAN (WLAN) systems, techniques such as acknowledgement, retransmissions, and transmission rate adaptation, are frame-level mechanisms designed for combating transmission...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Antler: A Multi-Tiered Approach to Automated Wireless Network Management
Jul 2008
Management of a large scale wireless network, be it an infrastructured WLAN or a metro-scale mesh network, presents several challenges. Troubleshooting problems related to wireless access in these...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Alpha Coverage: Bounding the Interconnection Gap for Vehicular Internet Access
May 2009
Vehicular Internet access via open WLAN Access Points (APs) has been demonstrated to be a feasible solution to provide opportunistic data service to moving vehicles. Using an in situ deployment,...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Enhanced Spatial Reuse in Multi-Cell WLANs
May 2009
When IEEE 802.11 Access Points (APs) share the same channel in a multi-cell WLAN, their downlink transmissions can interfere. Typically, an AP whose scheduled transmission to some user is blocked...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Towards Adaptive Beamforming in Indoor Wireless Networks: An Experimental Approach
May 2009
Several research works have argued that adaptive beamforming has the potential to realize the high spectral efficiency requirements of next-generation wireless standards, and is especially...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Methodology for Securing Wireless LANs Against Wormhole Attack
May 2009
Wormhole attacks enable an attacker with limited Resources and no cryptographic material to wreak havoc on wireless networks. Initial research focused that this attack is possible only on Adhoc...
Provided by Academy Publisher
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White Papers
Sniffer Channel Selection for Monitoring Wireless LANs
May 2009
Wireless sniffers are often used to monitor APs in Wireless LANs (WLANs) for network management, fault detection, traffic characterization, and optimizing deployment. It is cost effective to...
Provided by University of Connecticut
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White Papers
Enhancing Downlink Performance in Wireless Networks by Simultaneous Multiple Packet Transmission
May 2009
Wireless access networks have been more and more widely used in recent years, since compared to the wired networks, wireless networks are easier to install and use. Due to the tremendous practical...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
An Efficient Partner Assignment Algorithm for Improving the Performance of 802.11 WLAN
Nov 2009
In this paper, a novel idea of user cooperation in wireless networks has been exploited to improve the performance of the IEEE 802.11 protocol. A crucial challenge in the implementation of a...
Provided by Academy Publisher
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White Papers
An Adaptive Scheduling for QoS Enhancement Mechanism in IEEE 802.11 WLAN
Apr 2010
For the problem of QoS in the IEEE802.11DCF, proposed an enhanced adaptive scheduling distributed EASDCF mechanism. Through the largest contention window and retry times, this mechanism provides...
Provided by Academy Publisher
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White Papers
Substantiating Timing and Behavioral Anomalies in Wireless LANs Using GCL
Nov 2009
With the increasing dependence on Wireless LANs (WLANs), businesses, educational institutions and other organizations are in need of a reliable security mechanism. The latest security protocol,...
Provided by Academy Publisher
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White Papers
Treatment-Based Traffic Signatures
Jun 2007
Today's Wireless Local Area Networks (WLANs) concurrently support a plethora of user applications with diverse connectivity and Quality of Service (QoS) requirements. Wireless traffic flows...
Provided by Worcester Polytechnic Institute
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White Papers
The One-Sender-Multiple-Receiver Technique and Downlink Packet Scheduling in Wireless LANs
Feb 2009
In this paper, the authors study the One-Sender-Multiple-Receiver (OSMR) transmission technique, which allows a sender to send to multiple receivers on the same frequency simultaneously by...
Provided by Florida State University
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White Papers
Extended Abstract: Interference Mitigation in Enterprise WLANs Through Speculative Scheduling
Sep 2007
Wireless LANs are commonplace installations in enterprise environments. Their ease of use and deployment, however, are accompanied by a difficulty in their management and security. Proposed...
Provided by Association for Computing Machinery
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White Papers
Overcoming VoWLAN Challenges
Sep 2006
Early, enthusiastic predictions about the success of Voice over WLAN (VoWLAN) have fallen wide of the mark. A few vertical industries are putting the technology to work, but it's made little or no...
Provided by Alcatel-Lucent
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White Papers
A Survey of Context-Aware Mobile Computing Research
Feb 2008
Context-aware computing is a mobile computing paradigm in which applications can discover and take advantage of contextual information (such as user location, time of day, nearby people and...
Provided by Dartmouth College
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Whitepapers
A New Band AMC Scheme for Military Use of Indoor Mobile WiMAX System
Sep 2008
Indoor wireless communication systems have been developed to improve cell coverage and throughput with low cost in indoor environment. Among several indoor wireless communication systems such as...
Provided by Institute of Electrical & Electronic Engineers
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White Papers
A Cyber Physical Systems Solution for Real-time and Reliable Information Dissemination in Intelligent Transportation Systems
Jan 2010
Timely and reliable dissemination of traffic-related information to drivers is a key property that Intelligent Transportation Systems (ITS) should support. Numerous impediments, however, lead to...
Provided by Air Force Research Laboratory
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White Papers
Wireless Traffic: The Failure of CBR Modeling
Oct 2009
When new wireless technologies are deployed and subjected to real usage patterns, unforeseen performance problems inevitably seem to arise, to be fixed only in later generations. Why do these...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Congestion-Aware Rate Adaptation in Wireless Networks: A Measurement-Driven Approach
Mar 2008
Traditional rate adaptation solutions for IEEE 802.11 wireless networks perform poorly in congested networks. Measurement studies show that congestion in a wireless network leads to the use of...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Active Behavioral Fingerprinting of Wireless Devices
Apr 2008
The authors propose a simple active method for discovering facts about the chipset, the firmware or the driver of an 802.11 wireless device by observing its responses (or lack thereof) to a series...
Provided by Association for Computing Machinery
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White Papers
Coordinated Sampling to Improve the Efficiency of Wireless Network Monitoring
Jul 2007
Wireless networks are deployed in home, university, business, military and hospital environments, and are increasingly used for mission-critical applications like VoIP or financial applications....
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Security and Privacy in Emerging Wireless Networks
May 2010
Wireless communication continues to make in-roads into many facets of the society and gradually becomes more and more ubiquitous. While, in the past, wireless communication (as well as mobility)...
Provided by University of Michigan
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White Papers
Link-Layer Encryption Effect on Achievable Capacity in Wireless Network Coding
Mar 2010
In recent years, network coding has been enthusiastically promoted for certain wireless settings as a means of improving throughput and achieving higher capacity. Naturally, such proposals focused...
Provided by University of California
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White Papers
On Backoff in Fading Wireless Channels
Jun 2008
The authors consider the impact of transmission errors on the backoff algorithm behavior in the IEEE 802.11 protocol. Specifically, since the backoff algorithm assumes that all packet losses are...
Provided by Carnegie Mellon University
