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wireless lan
(1554 results)-
White Papers
Fairness Provision in the IEEE 802.11e Infrastructure Basic Service Set
Sep 2007
Most of the deployed IEEE 802.11e Wireless Local Area Networks (WLANs) use infrastructure Basic Service Set (BSS) in which an Access Point (AP) serves as a gateway between wired and wireless...
Provided by University of California
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White Papers
Mining Behavioral Groups in Large Wireless LANs
Jun 2007
One vision of future wireless networks is that they will be deeply integrated and embedded in the lives and will involve the use of personalized mobile devices. User behavior in such networks is...
Provided by University of Florida
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White Papers
A Dynamic Multimedia User-Weight Classification Scheme for IEEE_802.11 WLANs
Mar 2011
In this paper the authors expose a dynamic traffic-classification scheme to support multimedia applications such as voice and broadband video transmissions over IEEE 802.11 Wireless Local Area...
Provided by Texas A&M University
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White Papers
Tournament MAC With Constant Size Congestion Window for WLAN
Dec 2007
In the context of radio distributed networks, the authors present a generalized approach for the Medium Access Control (MAC) with fixed congestion window. The protocol is quite simple to analyze...
Provided by INRIA
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White Papers
Distributed Fair Scheduling Using Variable Transmission Lengths in Carrier-Sensing-Based Wireless Networks
Dec 2007
The fairness of IEEE 802.11 wireless networks (including Wireless LAN and Ad-hoc networks) is hard to predict and control because of the randomness and complexity of the MAC contentions and...
Provided by University of California
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White Papers
VoIP Over Multiple IEEE 802.11 Wireless LANs
Dec 2007
IEEE 802.11 WLAN has high data rate (e.g., 11Mbps for 802.11b and 54Mbps for 802.11g) while voice stream of VoIP has low data rate requirement (e.g., 29.2Kbps). One may therefore expect WLAN to be...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Distributed MAC Strategy for Exploiting Multi-User Diversity in Multi-Rate IEEE 802.11 Wireless LANs
Dec 2007
Fast rate adaptation has been established as an effective way to improve the PHY-layer raw date rate of wireless networks. However, within the current IEEE 802.11 legacy, MAC-layer throughput is...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Analytical Modeling of Saturation Throughput in Power Save Mode of an IEEE 802.11 Infrastructure WLAN
Dec 2010
The authors consider a single STAtion (STA) in the Power Save Mode (PSM) of an IEEE 802.11 infrastructure WLAN. This STA is assumed to be carrying uplink and downlink traffic via the Access Point...
Provided by Indian Institute of Science
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White Papers
On the Behavior of the Distributed Coordination Function of IEEE 802.11 With Multirate Capability Under General Transmission Conditions
Oct 2007
The aim of this paper is threefold. First, it presents a multi-dimensional Markovian state transition model characterizing the behavior of the IEEE 802.11 protocol at the Medium Access Control...
Provided by California State University
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White Papers
Proportional Fairness in Multi-Channel Multi-Rate Wireless Networks - Part I: The Case of Deterministic Channels With Application to AP Association Problem in Large-Scale WLAN
Feb 2008
This is Part I of a two-part paper series that studies the use of the Proportional Fairness (PF) utility function as the basis for resource allocation and scheduling in multi-channel multi-rate...
Provided by Chinese University of Hong Kong
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White Papers
Fast Dual-Radio Cross-Layer Handoffs in Multi-Hop Infrastructure-Mode 802.11 Wireless Networks for In-Vehicle Multimedia Infotainment
Oct 2008
Delivering multimedia infotainment applications such as VoIP, IPTV, or drive-by info-fueling to moving vehicles require seamless high-bandwidth connectivity between On-Board Units (OBUs) and...
Provided by Amrita Vishwa Vidyapeetham
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White Papers
Analysis of Bandwidth Measurement Methodologies Over WLAN Systems
Feb 2009
WLAN devices have become a fundamental component of nowadays network deployments. However, even though traditional networking applications run mostly unchanged over wireless links, the actual...
Provided by Universitat Politecnica de Catalunya
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White Papers
Modeling Multi-Cell IEEE 802.11 WLANs With Application to Channel Assignment
Mar 2009
The authors provide a simple and accurate analytical model for multi-cell infrastructure IEEE 802.11 WLANs. The model applies if the cell radius, R, is much smaller than the carrier sensing range,...
Provided by Indian Institute of Science
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White Papers
On-Off Random Access Channels: A Compressed Sensing Framework
Mar 2009
In wireless systems, random access refers to any multiple access communication protocol where the users autonomously decide whether or not to transmit depending on their own traffic requirements...
Provided by University of California
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White Papers
A Flexible Design of Network Devices Using Reconfigurable Content Addressable Memory
Jan 2011
The content addressable memory is a memory unit that uses content matching instead of addresses. Content addressable memory is used in different networking, telecommunications and storage...
Provided by University of Mosul
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White Papers
A Robust Ranging Scheme for OFDMA-Based Networks
Mar 2009
Uplink synchronization in Orthogonal Frequency-Division Multiple-Access (OFDMA) systems is a challenging task. In IEEE 802.16-based networks, users that intend to establish a communication link...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Network Load and Packet Loss Optimization During Handoff Using Multi-Scan Approach
Jan 2011
Handoff is a critical function that enables mobile nodes to stay connected to the wireless network by switching the data connection from one WLAN to another. During handoff the communication may...
Provided by Universiti Putra Malaysia
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White Papers
Framework for Intrusion Detection in IEEE 802.11 Wireless Mesh Networks
Oct 2010
Intrusion detection system is one of the possible solutions to timely detect the intrusions and alarm for appropriate action. So far many intrusion detection systems have been proposed for ad-hoc...
Provided by Brunel University
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White Papers
Comparison Process Long Execution Between PQ Algorthm and New Fuzzy Logic Algorithm for VoIP
Jan 2011
The transmission of voice over IP networks can generate network congestion due to weak supervision of the traffic incoming packet, queuing and scheduling. This congestion negatively affects the...
Provided by Universiti Teknologi Malaysia
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White Papers
Effect of Inter Packet Delay in Performance Analysis of Coexistence Heterogeneous Wireless Packet Networks
Jul 2009
As the explosive growth of the ISM band usage continues, there are many scenarios where different systems operate in the same place at the same time. One of growing concerns is the coexistence of...
Provided by BIT
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White Papers
Mobility: Driver of the New Enterprise Transformation
Apr 2011
As mobile technology becomes ubiquitous, IT organizations must have a thorough enterprise wide mobility deployment and infrastructure strategy in place.
Provided by SAP
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White Papers
60 GHz High Data Rate Wireless Communication System
Jan 2009
During the last decade, substantial knowledge about the 60 GHz Milli-Meter-Wave (MMW) channel has been accumulated and different architectures have been analyzed to develop new MMW communication...
Provided by Cornell University
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White Papers
From e-Manufacturing to M-Manufacturing
Apr 2008
This paper studies the impact of wireless technologies on enterprises. A multitude of new paradigms and new software technologies have emerged from the web. E-business and e-manufacturing have...
Provided by Association of Colleges of Computing and Information
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White Papers
A Formal Verification Framework for Security Policy Management in Mobile IP Based WLAN
Oct 2010
The continuous advancement of wireless technologies especially for enterprise Wireless Local Area Networks (LANs), demands well defined security mechanisms with appropriate architectural support...
Provided by Indian Institute of Technology Kharagpur
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White Papers
Measurement Based Link Level Investigation of IEEE 802.11g Channels
Mar 2011
Assessing channel conditions is critical to routing and MAC protocols. But, this task is challenging due to the highly dynamic nature of wireless channels and the characteristic differences...
Provided by University of Southern Mississippi
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White Papers
SOLS: Self Organising Distributed Location Server for Wireless Ad Hoc Networks
Apr 2009
Ad hoc networks allow wireless devices to form a network without any pre-existing knowledge of configuration or topology. Large-scale networks consist of hundreds or more nodes and are unable to...
Provided by University of Kent
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White Papers
Managed Mobility
Apr 2011
As smartphones, tablets, and other mobile devices become the data access and communication tools of choice in the work place, the systems needed to support this new generation of mobility are...
Provided by Sybase Inc.
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White Papers
Comparison of Different Broadcast Schemes for Multi-Hop Wireless Sensor Networks
Jul 2010
The IEEE 802.11 standard is widely used and deployed in wireless systems. IEEE 802.11 MAC protocol allows multiple nodes to share the wireless medium without any central coordinator. If two nodes...
Provided by Inha University
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White Papers
Design and Development of "µMeter" - An Innovative Bluetooth Application
Oct 2009
Bluetooth today, has conquered almost all mobile devices including Personal Digital Assistants (PDAs), handhelds, smart phones and mobile phones. Unlike the internet, where one has to rely on a...
Provided by Victoria University
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White Papers
Optimized Gateway Discovery in Hybrid MANETs
Oct 2009
Mobile users are expected to demand access to the Internet anywhere and anytime. In a MANET context, a device which is about to connect to external hosts needs the route to the element which...
Provided by Malaga University
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White Papers
On the Throughput/Bit-Cost Tradeoff in CSMA Based Cooperative Networks
Nov 2009
Wireless Local Area Networks (WLAN) still suffer from a severe performance discrepancy between different users in the uplink. This is because of the spatially varying channel conditions provided...
Provided by Aachen University
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White Papers
A High TCP Performance Rate Adaptation Algorithm for IEEE 802.11 Networks
Nov 2010
Rate adaptation is a link layer mechanism critical to the system performance by exploiting the multiple transmission rates provided by current IEEE 802.11 WLANs. The key challenge for designing...
Provided by Auburn University
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White Papers
Performance Trade Off With Modulation in 802.15.4 WPAN for Wireless Sensor Networks
Nov 2010
The rapid growth experienced by the wireless sensor communication sector in the recent years is conspicuous. Wireless sensor network kind of technologies have followed suit owing to the adoption...
Provided by Dr.B.R Ambedkar National Institute of Technology
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White Papers
Applications of Geometric Algorithms to Reduce Interference in Wireless Mesh Network
Mar 2010
In wireless mesh networks such as WLAN (IEEE 802.11s) or WMAN (IEEE 802.11), each node should help to relay packets of neighboring nodes toward gateway using multi-hop routing mechanisms. Wireless...
Provided by National Chengchi University
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White Papers
A Performance Analysis of HICCUPS - A Steganographic System for WLAN
Jun 2009
The HICCUPS (HIdden Communication system for CorrUPted networkS), introduced by the author in, is a steganographic system for WLANs (Wireless Local Area Networks). The main innovation of the...
Provided by Warsaw University
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White Papers
A Bandwidth Efficient Scheduling Framework for Non Real Time Applications in Wireless Networks
Sep 2010
The key concern on the bandwidth allocation and scheduling for non real time traffic are the fulfillment of its minimum throughput requirement and improvement of bandwidth utilization with...
Provided by Anna University
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White Papers
Reducing Handover Delay by Preselective Scanning Using GPS
Nov 2010
IEEE 802.11 based mobile communication towers is used very much in many personal and industrial purposes as it provides a continuous connectivity to Mobile Nodes (MNs) and allows them to change...
Provided by Hong Kong University of Science and Technology
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White Papers
Deficit Round Robin With Fragmentation Scheduling to Achieve Generalized Weighted Fairness for Resource Allocation in IEEE 802.16e Mobile WiMAX Networks
Oct 2010
Deficit Round Robin (DRR) is a fair packet-based scheduling discipline commonly used in wired networks where link capacities do not change with time. However, in wireless networks, especially...
Provided by Khon Kaen University
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White Papers
Future Wireless Networks: Key Issues and a Survey (ID/Locator Split Perspective)
Jan 2011
Future Wireless Networks (FWNs) are expected to be a convergence of different kinds of wireless technologies, such as cellular technologies, Wireless Local Area Networks (WLANs), wireless...
Provided by Inderscience Enterprises
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White Papers
An Explicit Rate Control Framework for Lossless Ethernet Operation
Jan 2009
In this paper, the explicit rate control framework for Ethernet applications, especially data centers, is described. The framework guarantees zero packet drops at the congested switch and fast...
Provided by Washington University in St. Louis
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Whitepapers
Experimental Characterization of VoIP Traffic Over IEEE 802.11 Wireless LANs
Feb 2011
Voice over Internet Protocol (VoIP) technology has become a potential alternative to and also a supplement of the traditional telephony systems over the Public Switched Telephone Network (PSTN),...
Provided by Centre Tecnològic de Telecomunicacions de Catalunya (CTTC)
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Whitepapers
Hybrid Access Techniques for Densely Populated Wireless Local Area Networks
Apr 2011
The IEEE 802.11p Task Group has recently released a new standard for Wireless Access in Vehicular Environments (WAVE). It constitutes an amendment to the 802.11 for Wireless Local Area Networks...
Provided by Centre Tecnològic de Telecomunicacions de Catalunya (CTTC)
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Whitepapers
Characterizing WLAN Medium Utilization for Radio Environment Maps
Jun 2011
This paper explores the possibility to use the medium utilization as a metric to be included in Radio Environment Maps (REMs) of WLAN networks. The main objective is to build REMs that go beyond...
Provided by Centre Tecnològic de Telecomunicacions de Catalunya (CTTC)
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White Papers
Cognitive Call Admission Control for VoIP Over IEEE 802.11 Using Bayesian Networks
Jan 2012
In this paper, the authors address the problem of provisioning Quality of Service (QoS) to Voice over IP applications in a Wireless LAN scenario based on the IEEE 802.11 standard. They propose the...
Provided by Centre Tecnològic de Telecomunicacions de Catalunya (CTTC)
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White Papers
Interdependency Measure and Analysis for Cross-Layer Design in WLAN
Dec 2011
Interdependency among system parameters may significantly affect the cross-layer design and optimization performance of wireless networks. However, it is very difficult to derive the...
Provided by AICIT
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White Papers
Investigation of Color Constancy for Ubiquitous Wireless LAN/Camera Positioning: An Initial Outcome
Apr 2012
This paper present the color constancy investigation in the hybridization of Wireless LAN and Camera positioning in the mobile phone. Five typical color constancy schemes are analyzed in different...
Provided by AICIT
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White Papers
Research of Burst Media Access Control Protocol in CFP
May 2012
Wireless Local Area Network (WLAN) is a prevalent network in the Network Control System (NCS). To lower access delay of burst real-time data in large WLAN Control System (WNCS), proposed a...
Provided by AICIT
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White Papers
A Novel Distributed Adaptive Channel Allocation Algorithm in Mesh WLAN Network and Its Routing QoS
May 2012
A novel distributed adaptive channel allocation algorithm is proposed in this paper for mesh WLAN network, which needs no AP communication with each other and the prediction about network layout....
Provided by AICIT
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White Papers
An Efficient ARQ Scheme for Reliable Video Broadcasting in Wireless LANs
Apr 2010
Video streaming has become a popular and important type of network application. Meanwhile, wireless LANs has been gaining popularity too. It has thus become important to address the reliability...
Provided by University of Texas
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White Papers
Opportunistic Web Access Via WLAN Hotspots
Feb 2010
Mobile phones are becoming commonplace for consuming Internet content and services. However, availability, affordability, and quality of the supposedly ubiquitous cellular network infrastructure...
Provided by Aalto University
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White Papers
Analysis of the Character Statics of Video Streaming on WLAN Networks
Dec 2011
The bursty nature of video streaming applications is due to the frame-based structure of video and this has an important impact on the resource requirements of the WLAN, affecting its ability to...
Provided by International Journal of Engineering and Advanced Technology (IJEAT)
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White Papers
A Compact Microstrip Patch Antenna With Triangular Snipped Slot for Wireless Applications
Apr 2012
A compact micro-strip patch antenna with a slot fed by coaxial probe is presented in this paper. The slot which is circular in shape with triangular truncations results three narrow bands. The...
Provided by International Journal of Engineering and Advanced Technology (IJEAT)
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White Papers
A Novel Access Selection Scheme in Heterogeneous Wireless Environments
Jan 2012
The next generation wireless network environments are expected to support anywhere, anytime connectivity for high-performance applications. To provide mobile users with seamless wireless access...
Provided by AICIT
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White Papers
Analysis of Call Admission Control Schemes for WLAN Coupled to 3G Network
Jan 2012
Convergence of Wireless Local Area Network (WLAN) and Third Generation (3G) wireless network is expected to create new markets for service providers and tender enhanced services to the integrated...
Provided by International Journal of Soft Computing and Engineering (IJSCE)
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White Papers
MPT Technique in Unifacial and Bi Directional Peer to Peer WLAN for Efficient Downlink Performance
Jan 2012
This paper proposes Multiple Packet Transmission (MPT) to multiple nodes in unidirectional and bi directional peer to peer wireless LAN for efficient downlink performance. This gives users the...
Provided by International Journal of Soft Computing and Engineering (IJSCE)
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White Papers
Wire Type Multiband Strip Antenna for WiMAX /WLAN Operations
Nov 2011
This paper presents a wire type multiband strip antenna for WiMAX and WLAN operations by means of numerical simulations. The dimension of the antenna is 39×30 mm2 and provides an impedance...
Provided by International Journal of Soft Computing and Engineering (IJSCE)
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White Papers
Analytical Modeling of IEEE 802.11e Enhanced Distributed Channel Access Under a Non-Saturation Condition
Apr 2011
In recent years, the IEEE 802.11 Wireless Local Area Network (WLAN) has been widely deployed in Indoor wireless Communication and it includes detailed specification of both medium access control...
Provided by Science Publications
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White Papers
Retrieving Packets From Losing During Service Disruption Time, During Vertical Handover Among UMTS and WLAN
Sep 2011
In voice activity based communication Choi et al show that using of mutual silence period to do the Vertical Hand-Over (VHO) is a perfect choice to minimize the packet loss. However according to...
Provided by The International Journal of Advanced Networking and Applications
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White Papers
A Metering Infrastructure for Heterogenous Mobile Networks
Dec 2008
The next generation of mobile access networks will support different access technologies like UMTS, WLAN, WiMax and LTE. Optimal handover decisions between different access networks have to take...
Provided by TECHNICAL UNIVERSITY OF MUNICH
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Whitepapers
Experimental Study of Link and Transport Protocols in Interference-Prone Wireless LAN Environments
Jan 2012
As wireless networks are deployed widely and user expectations grow, it is important to study the trade-offs among good put, latency and loss rates that exist in link and transport protocols....
Provided by IBM
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White Papers
Opportunistic Medical Monitoring Using Bluetooth P2P Networks
Feb 2008
Remote medical monitoring using body sensors and wireless communications has been gaining attention recently because of the potential savings in patient care and the equally impressive...
Provided by University of California
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White Papers
Seamless Handover Between CDMA2000 and 802.11 WLAN Using MSCTP
Apr 2012
The invention of mobile devices such as laptops, hand-held computers, and cellular phones has changed the whole Internet world. The main feature of mobile devices is that they can access the...
Provided by Universal Association of Computer and Electronics Engineers
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White Papers
Effects of Hidden Terminals and their Alleviation in Multi Rate Ad Hoc Networks
May 2012
In multi rate ad hoc networks the hidden terminal problem is unique and there is a limited understanding of its effect on network performance. In this paper, the authors studied the effects of...
Provided by Universal Association of Computer and Electronics Engineers
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White Papers
Performance Comparison of Video Traffic Over WLAN IEEE 802.11e and IEEE 802.11n
Jul 2011
This paper reviews the fast deployment of Wireless Local Area Networks (WLANs) and the ability of WLAN to support real time services. Stringent Quality of Service (QoS) and high throughput...
Provided by IARIA
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White Papers
Game Theory Based Dynamic RRM for Reconfigurable WiMAX/WLAN System
Jul 2011
This paper proposes, analyzes and evaluates a novel user-oriented Radio Resource Management (RRM) strategies for coexisting WiMAX/WLAN reconfigurable system. The proposed strategies are based on...
Provided by IARIA
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White Papers
Exact Error Probabilities Analysis of Arbitrary 2-D Modulation-OFDM Systems With I/Q Imbalances in Frequency-Flat Rayleigh Fading Channel
Jul 2011
In-phase and Quadrature (I/Q) amplitude and phase imbalances are inevitably caused by signal processing in the analog components such as I/Q mixers, phase shifters, filters, and analog/digital...
Provided by IARIA
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White Papers
A New Path Failure Detection Method for Multi-Homed Transport Layer Protocol
Jul 2011
Through its support for multi-homing, the Stream Control Transmission Protocol (SCTP) is a suitable solution to implement and manage user's mobility by abstracting multiple physical paths into a...
Provided by IARIA
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White Papers
Estimation of Collision Multiplicities in IEEE 802.11-Based WLANs
Feb 2012
Estimating the Collision Multiplicity (CM), i.e. the number of users involved in a collision, is a key task in MultiPacket Reception (MPR) approaches and in Collision Resolution (CR) techniques. A...
Provided by IARIA
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White Papers
Improving Fairness in Wireless Mesh Networks
Feb 2012
Wireless Mesh Networks (WMNs) are networks that aim to establish hybrid wireless communications in areas with little or no telecommunication infrastructure available. The main motivation of these...
Provided by IARIA
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White Papers
Joint Optimal Spectrum Sensing Time and Power Allocation in Ultra Wideband Cognitive Radio Networks
Apr 2012
Ultra WideBand (UWB) system is overlapped with various wireless systems, such as WLAN, WiMax and UMTS, which limits the use of UWB. Cognitive Radio (CR) enables UWB systems to efficiently use the...
Provided by IARIA
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White Papers
Performance Analysis of Pilot Aided OFDMA Systems for Mesh Networks
Aug 2011
This paper presents a systematic approach for analyzing the bit error probability of pilot aided Orthogonal Frequency-Division Multiple Access (OFDMA) systems. A comparative analysis with the...
Provided by IARIA
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White Papers
Robust Header Compression With Load Balance and Dynamic Bandwidth Aggregation Capabilities in WLAN
Dec 2010
The vigorous development of WLAN in recent years has introduced various kinds of WLAN techniques and research subjects been brought up. The development of WLAN in recent years has deeply involved...
Provided by National Taiwan University of Science and Technology
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White Papers
WLAN IEEE 802.11a/b/g/n Indoor Coverage and Interference Performance Study
Sep 2011
An adequate wireless network plan is needed to replace the traditional wired LANs. A full coverage WLAN offers the flexibility to relocate people and equipment or to reconfigure and add more...
Provided by IARIA
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White Papers
Vertical Fast Handoff in Integrated WLAN and UMTS Networks
Jul 2011
Mobility management and on top of that, vertical handoffs remains as one of the most challenging obstacles in 4G evolution. In this paper, the authors present Vertical Fast Handoff protocol as a...
Provided by IARIA
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White Papers
Packet Size Variability Affects Collisions and Energy Efficiency in WLANs
Dec 2009
Wireless Local Area Networks (WLANs) support a wide range of applications, with various packet sizes. This diversity is set to increase in 802.11e WLANs which effectively allow very large packets...
Provided by Swinburne University of Technology
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White Papers
Service Differentiation Without Prioritization in IEEE 802.11 WLANs
Jul 2011
Wireless LANs carry a mixture of traffic, with different delay and throughput requirements. The usual way to provide low-delay services is to give priority to such traffic. However this creates an...
Provided by Swinburne University of Technology
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White Papers
Performance Analysis of IEEE 802.11 WLANs With Saturated and Unsaturated Sources
Oct 2011
The model is used to investigate the interaction between these two types of sources, which is particularly useful for systems seeking to achieve load-independent "Fair" service differentiation....
Provided by Institute of Electrical & Electronic Engineers
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White Papers
State Dependent Attempt Rate Modeling of Single Cell IEEE 802.11 WLANs With Homogeneous Nodes and Poisson Arrivals
Jan 2012
Analytical models of IEEE 802.11-based WLANs are invariably based on approximations, such as the well-known mean-field approximations proposed by Bianchi for saturated nodes. In this paper, the...
Provided by Indian Institute of Science
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White Papers
Analysis of PS Protocols Using Markov and Cluster Model in 802.11 WLANS
Apr 2012
In recent years, a series of Power Saving (PS) protocols has been proposed in the family of 802.11 standards to save energy for mobile devices. To evaluate their performance, many works have been...
Provided by ESTIJ
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White Papers
Nuzzer: A Large-Scale Device-Free Passive Localization System for Wireless Environments
May 2011
The widespread usage of WLANs and mobile devices has fostered the interest in localization systems for wireless environments. The majority of research in the context of wireless-based localization...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Applications of Geometric Algorithms to Reduce Interference in Wireless Mesh Network
Mar 2010
In wireless mesh networks such as WLAN (IEEE 802.11s) or WMAN (IEEE 802.11), each node should help to relay packets of neighboring nodes toward gateway using multi-hop routing mechanisms. Wireless...
Provided by National Chengchi University
-
White Papers
A Performance Analysis of HICCUPS - A Steganographic System for WLAN
Jun 2009
The HICCUPS (HIdden Communication system for CorrUPted networkS), introduced by the author in, is a steganographic system for WLANs (Wireless Local Area Networks). The main innovation of the...
Provided by Warsaw University
-
White Papers
A Bandwidth Efficient Scheduling Framework for Non Real Time Applications in Wireless Networks
Sep 2010
The key concern on the bandwidth allocation and scheduling for non real time traffic are the fulfillment of its minimum throughput requirement and improvement of bandwidth utilization with...
Provided by Anna University
-
White Papers
Reducing Handover Delay by Preselective Scanning Using GPS
Nov 2010
IEEE 802.11 based mobile communication towers is used very much in many personal and industrial purposes as it provides a continuous connectivity to Mobile Nodes (MNs) and allows them to change...
Provided by Hong Kong University of Science and Technology
-
White Papers
Deficit Round Robin With Fragmentation Scheduling to Achieve Generalized Weighted Fairness for Resource Allocation in IEEE 802.16e Mobile WiMAX Networks
Oct 2010
Deficit Round Robin (DRR) is a fair packet-based scheduling discipline commonly used in wired networks where link capacities do not change with time. However, in wireless networks, especially...
Provided by Khon Kaen University
-
White Papers
Future Wireless Networks: Key Issues and a Survey (ID/Locator Split Perspective)
Jan 2011
Future Wireless Networks (FWNs) are expected to be a convergence of different kinds of wireless technologies, such as cellular technologies, Wireless Local Area Networks (WLANs), wireless...
Provided by Inderscience Enterprises
-
White Papers
An Explicit Rate Control Framework for Lossless Ethernet Operation
Jan 2009
In this paper, the explicit rate control framework for Ethernet applications, especially data centers, is described. The framework guarantees zero packet drops at the congested switch and fast...
Provided by Washington University in St. Louis
-
White Papers
Congestion Management for Lossless Ethernet Operation
May 2008
IEEE 802.1 standards committee is working on a new specification for congestion notification in Ethernet networks. The goal of this work is to enable applications of Ethernet in backend data...
Provided by Washington University in St. Louis
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White Papers
Security Enhancement With Optimal QoS Using EAP-AKA in Hybrid Coupled 3G-WLAN Convergence Network
Jul 2010
The Third Generation Partnership Project (3GPP) has addressed the feasibility of interworking and specified the interworking architecture and security architecture for Third Generation...
Provided by Pondicherry Engineering College
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White Papers
Network-Aware Adaptation With Real-Time Channel Statistics for Wireless LAN Multimedia Transmissions in the Digital Home
Jan 2008
Streaming multimedia on wireless networks can have high bandwidth requirements, with real-time streaming having stringent delay requirements to be met. Multiple effects including time-varying...
Provided by Intel Corporation
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White Papers
Node Synchronization for Minimizing Delay and Energy Consumption in Low-Power-Listening MAC Protocols
Jul 2008
Because it sits so low in the protocol stack, the MAC layer offers great potential to reduce energy consumption and delay. In very energy and bandwidth constrained Wireless Sensor Networks (WSNs),...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Investigating the Performance of Various Vocoders for a Fair Scheduling Algorithm in WiMax
Nov 2009
IEEE 802.16e, a broadband wireless access technology that provides high speed internet access and multimedia services has seen very significant growth in recent times. With the due rapid...
Provided by University of Texas
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White Papers
Security Enhancement & Solution for Authentication Frame Work in IEEE 802.16
Dec 2010
WIMAX- Worldwide Interoperability for Microwave Access is going to be an emerging wireless technology for the future. Wireless networking market is thriving because of increasing popularity of...
Provided by Chittagong University of Engineering & Technology
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White Papers
Optimal Routing and Power Control for a Single Cell, Dense, Ad Hoc Wireless Network
Jul 2009
The authors consider a dense, ad hoc wireless network, confined to a small region. The wireless network is operated as a single cell, i.e., only one successful transmission is supported at a time....
Provided by Cornell University
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White Papers
Performance Evaluation of IEEE 802.11 MAC Layer in Supporting Delay Sensitive Services
Feb 2010
Providing QoS requirements like good throughput and minimum access delay are challenging tasks with regard to 802.11 WLAN protocols and Medium Access Control (MAC) functions. IEEE 802.11 MAC layer...
Provided by Punjabi University
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White Papers
An Adaptive Multimedia-Oriented Handoff Scheme for IEEE 802.11 WLANS
Feb 2011
Previous studies have shown that the actual handoff schemes employed in the IEEE 802.11 Wireless LANs (WLANs) do not meet the strict delay constraints placed by many multimedia applications like...
Provided by University of Valenciennes and Hainaut-Cambresis
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White Papers
Implementation of Channel Estimation and Modulation Technique for MIMO System
Apr 2011
Future wireless communication system have to be designed to integrate features such as high data rates, high quality of service and multimedia in the existing communication framework. Increased...
Provided by AIRCC
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White Papers
PSM-Throttling: Minimizing Energy Consumption for Bulk Data Communications in WLANs
Aug 2007
While the 802.11 Power Saving Mode (PSM) and its enhancements can reduce power consumption by putting the Wireless Network Interface (WNI) into sleep as much as possible, they either require...
Provided by Ohio State University
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White Papers
Distributing Private Data in Challenged Network Environments
Apr 2010
Developing countries face significant challenges in network access, making even simple network tasks unpleasant. Many standard techniques-caching and predictive prefetching help somewhat, but...
Provided by Association for Computing Machinery
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White Papers
A Quantitative Analysis of Handover Time at MAC Layer for Wireless Mobile Networks
Nov 2009
Extensive studies have been carried out for reducing the handover time of wireless mobile network at Medium Access Control (MAC) layer. However, none of them show the impact of reduced handover...
Provided by University of Bridgeport
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White Papers
Selfless Distributed Credit Based Scheduling for Improved QoS in IEEE 802.16 WBA Networks
Nov 2009
Packet and flow scheduling algorithms for WiMAX has been a topic of interest for a long time since the very inception of WiMAX networks. WiMAX offers advantages particularly in terms of Quality of...
Provided by Andhra University
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White Papers
VOIP Performance Over Broadband Wireless Networks Under Static and Mobile Environments
Nov 2010
Voice over IP is expected to be very promising application in the next generation communication networks. The objective of this paper is to analyse the VoIP performance among the most competing...
Provided by Jadavpur University
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White Papers
Experimental Performances Analysis of Load Balancing Algorithms in IEEE 802.11
Aug 2009
In IEEE 802.11, Load Balancing Algorithms (LBA) considers only the associated stations to balance the load of the available Access Points (APs). However, although the APs are balanced, it causes a...
Provided by DEMOCRATIC CONTROL OF ARMED FORCES
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White Papers
Source Capture Time Analysis of Privacy Communication Protocols for Wireless Sensor Networks
Jul 2010
Communication privacy techniques that protect the locations of source sensor nodes and sink nodes from either global or local adversaries have received significant attention recently. The...
Provided by University of Texas
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White Papers
WiFi Overcast: Enabling True Mobility for Realtime Applications in the Enterprise
Jan 2009
Enterprises are increasingly deploying Wireless LANs to provide mobile access to users in corporate offices. However, existing enterprise WLANs are far from being truly mobile. In particular, they...
Provided by University of Waterloo
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White Papers
Passive On-Line In-Band Interference Inference in Centralized WLANs
Jul 2010
In this paper, the authors describe a passive on-line method for determining the conflict graph in a centralized wireless LAN. The key insight in the work is to exploit the relative timing between...
Provided by University of Southern California
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White Papers
Improving WLAN Performance With Enhanced MAC, Node Cooperation and Two-Stage FEC Scheme
Nov 2007
Signal interference, route disruption, congestion and fluctuations cause several consecutive bits arriving at the receiver in error. The error handling method in tradition communication protocols...
Provided by JATIT
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White Papers
An Efficient Method of Mobile IP Based Handoff Mechanism for WLAN-GPRS Integrated Network
Sep 2007
This paper proposes a new technique for Mobile IP (MIP) registration by WLAN Host (WH) of the Internet through GPRS network. The Home Agent (HA) of WH resides in the Internet. The gateway GPRS...
Provided by JATIT
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White Papers
A Distributed Coordination Scheme to Improve the Performance of IEEE 802.11 in Multi-Hop Networks
Mar 2009
This paper investigates the performance of IEEE 802.11 in multi-hop scenarios and shows how its aggressive behavior can throttle the spatial reuse and reduce bandwidth efficiency. An adaptive,...
Provided by Rensselaer Polytechnic Institute
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White Papers
iDSRT: Integrated Dynamic Soft Real-Time Architecture for Critical Infrastructure Data Delivery Over WLAN
Apr 2008
Critical Infrastructures (CIs) such as the Power Grid play an important role in the lives. Of all important aspects of CIs, real-time data delivery is the most important one because appropriate...
Provided by University of Illinois
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White Papers
A State Action Frequency Approach to Throughput Maximization Over Uncertain Wireless Channels
Jan 2011
The authors consider scheduling over a wireless system, where the channel state information is not available a priori to the scheduler, but can be inferred from the past. Specifically, the...
Provided by Massachusetts Institute of Technology
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White Papers
Practical Rate and Route Adaptation With Efficient Link Quality Estimation for IEEE 802.11b/g Multi-Hop Networks
Feb 2010
Accurate and fast Packet Delivery Ratio (PDR) estimation, used in evaluating wireless link quality, is a prerequisite to increase the performance of multi-hop and multi-rate IEEE 802.11 wireless...
Provided by University of California
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White Papers
Energy Efficiency of Adaptive-Rate Medium Access Control Protocols for Sensor Networks
Jun 2009
Energy efficient protocol design is the aim of current researches in the area of sensor networks where limited power resources impose energy conservation considerations. In this paper the authors...
Provided by K.N.Toosi University of Technology
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White Papers
Green Modulation in Proactive Wireless Sensor Networks
Oct 2009
Due to unique characteristics of sensor nodes, choosing energy-efficient modulation scheme with low-complexity implementation (referred to as green modulation) is a critical factor in the physical...
Provided by Institute of Electrical and Electronics Engineers
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Case Studies
Enterprise Wireless LAN Infrastructure Solution
Feb 2009
A leading US-based provider of enterprise wireless LAN equipment and management software. The Smart Mobile solution is an enterprise-grade wireless LAN infrastructure that runs seamlessly, even...
Provided by LUXOFT
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White Papers
Estimation of Frequency Selectivity for OFDM Based New Generation Wireless Communication Systems
Apr 2007
In this paper, estimation of both global (long term) and local (instantaneous) frequency selectivity and rms delay spread of wireless communication channel are investigated. A practical algorithm...
Provided by University of South Florida
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White Papers
On Cyclic Delay Diversity in OFDM Based Transmission Schemes
Apr 2007
Cyclic Delay Diversity (CDD) is a simple approach to introduce spatial diversity to an Orthogonal Frequency Division Multiplexing (OFDM) based transmission scheme that itself has no built-in...
Provided by University of Ulm
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White Papers
A Medium Access Control Scheme for Wireless LANs With Constant-Time Contention
Aug 2010
In today's wireless networks, stations using the IEEE 802.11 Standard contend for the channel using the Distributed Coordination Function (DCF). Research has shown that DCF's performance degrades...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
A Comprehensive Analysis of Bandwidth Request Mechanisms in IEEE 802.16 Networks
May 2010
The IEEE 802.16 standard is considered to be one of the most promising technologies. Bandwidth reservation is employed to provide Quality of Service (QoS)-guaranteeing services. A request/grant...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Throughput Limits of IEEE 802.11 and IEEE 802.15.3
Nov 2009
Wireless LANs are becoming more sophisticated and innovative due to low cost, genuine mobility, fast implementation, customer satisfaction and high data rate communication. IEEE 802.11 is a...
Provided by Institute of Electrical and Electronics Engineers
