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wi-fi (802.11)
(2387 results)-
White Papers
Delivering the 802.11n Promise With Smart Wi-Fi
Apr 2008
The new IEEE 802.11n standard represents a significant advance in Wi-Fi technology, promising a tremendous leap in performance and coverage over its predecessors, 802.11a and g. With physical data...
Provided by Ruckus Wireless
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White Papers
Achieving Fairness in Lossy 802.11e Wireless Multi-Hop Mesh Networks
May 2009
802.11 technology is becoming increasing pervasive as the last-hop both in office environments and in the home. Looking ahead, the next step is likely to be towards greater use of multiple...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Diversity Techniques for Interference Mitigation Between IEEE 802.11 WLANs and Bluetooth
Feb 2009
Wireless LANs (for e.g., IEEE 802.11g) and Wireless Personal Access Networks (WPANs) operate in the same 2.4 GHz ISM frequency band. This paper considers the techniques to mitigate the...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
IEEE 802.11n Wireless LANs: Opportunity and Challenges
Mar 2009
The next generation of wireless local area network standards is nearing final approval in the IEEE standards process. The standard, known as IEEE 802.11n, is close enough to final approval that...
Provided by Novarum
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White Papers
Enterprise 802.11n Wireless LAN Access Point Benchmark
Apr 2009
It had a unique opportunity to test current generation dual-band 802.1 in WLAN enterprise class access points. 200 is likely the major transition year in WI,AN deployments, as many new large scale...
Provided by Novarum
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White Papers
Probability Analysis of Channel Collision Between IEEE 802.15.4 and IEEE 802.11b Using Qualnet Simulation for Various Topologies
Apr 2009
Coexistent heterogeneous wireless networks may interfere with each other and result in significant performance degradation when devices are collocated in the same environment. With the...
Provided by International Journal of Computer Theory and Engineering (IJCTE)
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White Papers
Performance Evaluation of Symmetric Encryption Algorithms on Power Consumption for Wireless Devices
Oct 2009
The popularity of wireless networks increases, so does the need to protect them. Encryption algorithms play a main role in information security systems. On the other side, those algorithms consume...
Provided by International Association of Computer Science & Information Technology (IACSIT)
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White Papers
Performance Analysis of IEEE 802.11n Under Different STBC Rates Using 64-QAM
Aug 2009
The main focus of current research and development for the next-generation Wireless Local Area Network (WLAN) communication systems is to enhance the link throughput and channel capacity. In this...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Cross-Layer Based Erasure Code to Reduce the 802.11 Performance Anomaly: When FEC Meets ARF
Oct 2008
Wireless networks have been widely accepted and deployed in world nowadays. Consumers are now accustomed to wireless connectivity in their daily life due to the pervasiveness of the 802.11b/g and...
Provided by Association for Computing Machinery
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White Papers
Efficient Signal Strength Sampling for 802.11-Based Indoor Positioning Systems
Jan 2008
The primary contribution of this paper is the novel Com-PoScan system that can mitigate the effect of scanning on concurrent communications. ComPoScan is based on movement detection to adaptively...
Provided by University of Mannheim
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White Papers
Nonsaturation Throughput Enhancement of IEEE 802.11b Distributed Coordination Function for Heterogeneous Traffic Under Noisy Environment
Apr 2009
This paper proposes a mechanism named Modified Backoff (MB) mechanism to decrease the channel idle time in IEEE 802.11 Distributed Coordination Function (DCF). In the noisy channel, when...
Provided by K.S.Rangasamy College of Technology
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White Papers
Analysis of a Fountain Codes Based Transport in an 802.11 WLAN Cell
Jun 2009
Fountain Codes based Transport (FCT) protocol relies on an alternate paradigm to that of the ubiquitous TCP. It abolishes the need for a reverse feedback mechanism usually essential to provide...
Provided by French National Institute for Research in Computer Science and Control
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White Papers
An Investigation Into Signal Strength of 802.11n WLAN
Oct 2009
Over the past two decades, the demand for wireless service has grown at an extraordinary pace. The industry has grown from pagers, and cellular phones to Personal Communication Systems (PCS) and...
Provided by University of Wales
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White Papers
Enhancing IEEE 802.11a/n With Dynamic Single-User OFDM Adaptation
May 2008
Earlier paper have demonstrated that the achievable throughput of OFDM systems can benefit significantly from individual modulation/transmit power selection on a per sub-carrier basis according to...
Provided by RWTH Aachen University
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White Papers
MAC-Aware Routing Metric for 802.11 Wireless Mesh Networks
Aug 2009
It developed a new wireless link quality metric, ECOT (Estimated Channel Occupancy Time) that enables a high throughput route setup in wireless mesh networks. The key feature of ECOT is being...
Provided by Seoul National University
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White Papers
Application of Neural Networks for Achieving 802.11 QoS in Heterogeneous Channels
Nov 2007
In error-prone IEEE 802.11 WLAN (Wireless Local Area Network) environments, heterogeneous link qualities can significantly affect channel utilizations of mobile stations and consequently the...
Provided by National Taiwan University
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White Papers
Throughput Enhancement Through Combined Fragmentation and Rate Method in IEEE 802.11b WLANs
Oct 2008
IEEE 802.11 allows for fragmentation tuning and rate selection. Their combined usage is referred sometimes to link adaptation. However, the algorithms of link adaptation are beyond the 802.11...
Provided by Dublin Institute of Technology
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White Papers
Channel Assignment for Reliable Multicast in IEEE 802.11b Multi-Radio Multi-Channel Wireless Mesh Networks
Jul 2009
This paper deals with the channel assignment problem for multicast transmission in multi-radio, multi-channel wireless mesh networks. The objective is to maximize the minimum path success...
Provided by Korea Advanced Institute of Science and Technology
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White Papers
Available Bandwidth-Based Association in IEEE 802.11 Wireless LANs
Oct 2008
The performance of an IEEE 802.11 station heavily depends on the selection of an AP (Access Point) that the station is associated with to access the Internet. The conventional approach to the AP...
Provided by Association for Computing Machinery
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White Papers
Decoupling 802.11 Mesh Networks From Hierarchical Databases in DHCP
Sep 2009
Evolutionary programming must work. Given the current status of pseudorandom models, experts obviously desire the improvement of XML. In order to answer this question, it show that despite the...
Provided by LINK CLUB
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White Papers
Establishing a Reliable Test Setup for 802.11n Devices
Apr 2008
The past few years has seen an explosive growth in the Wireless LAN market. WLAN chipset sales has increased tenfold in the last five years; nowadays more than 90% of the notebooks PCs have...
Provided by University of Colorado at Boulder
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White Papers
802.11n: Enterprise Deployment Considerations
May 2008
802.11n has significant advantages over legacy wireless technologies and, with Wi-Fi certification in place since June 2007, is ready for enterprise deployment now. These advantages present the...
Provided by Burton Group
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White Papers
Ecuador: Wireless Networks as an Opportunity for Access to Broadband and Development
Jun 2009
The emergence of wireless technologies, especially Wi-Fi, offers an alternative for internet access in areas that are unprofitable by market standards and lack infrastructure. The new Ecuadorian...
Provided by Association for Progressive Communications
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White Papers
The Social Life of Wireless Urban Spaces Internet Use, Social Networks, and the Public Realm
May 2009
Offlate changes to the structure of people's social networks, the mass media, and the form of public spaces may represent a confluence of social trends that constrain exposure to diverse issues,...
Provided by LIRNEasia
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White Papers
The Social Life of Wireless Urban Spaces: Internet Use, Social Networks, and the Public Realm
Apr 2009
Offlate changes to the structure of people's social networks, the mass media, and urban public spaces may represent a confluence of social trends that constrain exposure to diverse issues, ideas,...
Provided by University of Pennsylvania
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White Papers
Enhancement Throughput of Unplanned Wireless Mesh Networks Deployment Using Partitioning Hierarchical Cluster (PHC)
Aug 2009
Wireless mesh networks based on IEEE 802.11 technology are a scalable and efficient solution for next generation wireless networking to provide wide-area wideband internet access to a significant...
Provided by University of Malaya
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Case Studies
Empowering Students and Teachers With Streamlined Access and Opportunity
Dec 2008
Located in central Los Angeles County just south of Pasadena, the City of San Marino lies nestled in a valley below the foothills of the San Gabriel Mountains. The district quickly recognized that...
Provided by Motorola
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White Papers
Implementation and Evaluation of a TDMA MAC for WiFi-Based Rural Mesh Networks
Oct 2009
WiFi mesh networks with outdoor links have become an attractive option to provide cost-effective broadband connectivity to rural areas, especially in developing regions. It is well understood that...
Provided by Association for Computing Machinery
-
White Papers
TDMA for Long Distance Wireless Networks
Sep 2009
Off late the UC Berkeley TIER Project studied the need to deploy network infrastructure to emerging regions. Their goal was to "Address the challenges in bringing the Information Technology...
Provided by University of Cambridge
-
White Papers
FreeMAC: Framework for Multi-Channel MAC Development on 802.11 Hardware
Aug 2008
Exponential growth in the number of wireless devices that operate in the limited unlicensed frequency spectrum necessitates the next generation of radio devices to be reconfigurable and sensitive...
Provided by Association for Computing Machinery
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White Papers
Soft-TDMAC: A Software TDMA-Based MAC Over Commodity 802.11 Hardware
Jan 2009
This paper designs and implements Soft-TDMAC, a software Time Division Multiple Access (TDMA) based MAC protocol, running over commodity 802.11 hardware. Soft-TDMAC has a synchronization...
Provided by University of California
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White Papers
Real-Time Support on IEEE 802.11 Wireless Ad-Hoc Networks: Reality Vs. Theory
Mar 2009
The usable throughput of an IEEE 802.11 system for an application is much less than the raw bandwidth. Although 802.11b has a theoretical maximum of 11 Mbps, more than half of the bandwidth is...
Provided by Institute of Electronics, Information and Communication Engineers
-
White Papers
Real-Time Video Surveillance Over IEEE 802.11 Mesh Networks
Feb 2009
In recent years, there has been an increase in video surveillance systems in public and private environments due to a heightened sense of security. The next generation of surveillance systems will...
Provided by Carnegie Mellon University
-
Case Studies
Flexible, Easy to Deploy and Manage Wireless Networking for Healthcare Facilities With Cooperative Control Wireless LAN From Aerohive
Feb 2009
Founded in 1989, privately owned Complete HealthCare Resources has been providing strategic solutions to long-term care, assisted living and retirement communities through management and...
Provided by Aerohive Networks
-
Case Studies
Health Care System Serves Four Health Care Facilities, Thousands of Employees, and Hundreds of Doctors, With One Wireless LAN Solution From Aerohive
Aug 2009
Riverside health care systems manage four facilities in Westchester County, just north of New York City. The health care provider is always looking to state-of-the-art medical technology to...
Provided by Aerohive Networks
-
White Papers
An Efficient Scheme for Solving Bandwidth Guaranteed Scheduling and Shortest Path Routing Problem in Wireless Mesh Networks
Jan 2008
The bandwidth problem is one of the most serious problems for multi-hop Wireless Mesh Networks (WMNs) due to the influence of link interference. This paper studies joint problem of...
Provided by Wuhan University
-
White Papers
Softspeak: Making VoIP Play Well in Existing 802.11 Deployments
Feb 2009
Voice over IP (VoIP) in 802.11 Wireless Networks (WiFi) is an attractive alternative to cellular wireless telephony. Unfortunately, VoIP traffic is well known to make inefficient use of such...
Provided by University of California
-
White Papers
RLS Channel Estimation and Tracking for MIMO-Extended IEEE 802.11a WLANs
Feb 2008
Wireless communication systems based on Multiple-Input Multiple-Output (MIMO) technology and Orthogonal Frequency Division Multiplexing (OFDM) has the potential to achieve enormous increase in the...
Provided by Universiti Putra Malaysia
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White Papers
An Optimal Sensor Architecture for Wi-Fi Intrusion Detection
Feb 2008
This paper presents a novel approach to identifying illegitimate nodes in wireless networks. It demonstrates that, given a sufficiently dense sensor network, it is able to discriminate all network...
Provided by University of Melbourne
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White Papers
The Analysis of Performance of IEEE 802.11 MAC Protocol Using Markov Chain
Jan 2008
Analyzing the effect of transmission errors on the performance of IEEE 802.11 is important since wireless channels are error-prone. Most of the existing work on the performance analysis of IEEE...
Provided by Dominican University
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Whitepapers
WiMetroNet - A Scalable Wireless Network for Metropolitan Transports
May 2010
In this paper, the authors address a class of moving or vehicle-to-infrastructure networks. Their particular network - the WiMetroNet - is a private network possibly owned by a consortium of...
Provided by Universidade do Algarve
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Whitepapers
Incremental and Complementary Coding Techniques for Cooperative Medium Access Control Protocols
Apr 2011
Cross-layer designed cooperative Medium Access Control (MAC) protocols for 802.11 wireless networks have been recently shown to achieve a better performance than the Distributed Coordination...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Simulation of IEEE 802.11p Vehicular Networking With Real-Life Traffic Scenario
Apr 2011
Vehicular networking is nowadays very hot topic within the research field of telecommunications. Lot of different approaches exists, although the standard approach called IEEE 802.11p is gaining...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Method for Applying Interlink Correlation to Multilink MIMO Propagation Channel Estimation
Apr 2011
Standardization of IEEE 802.11TGac was initiated to achieve next generation wireless LAN systems. The main target of IEEE 802.11TGac is to achieve throughput exceeding 1 Gbps under the 6-GHz band....
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Coexistence of 802.11b and 802.15.4a-CSS: Measurements, Analytical Model and Simulation
Apr 2011
IEEE 802.15.4a Wireless Sensor Networks (WSN) and IEEE 802.11b Wi-Fi networks are operating in the 2.4 GHz band. In order to examine co-channel interference scenarios and the impact on key...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Media Independent Handover Management in Heterogeneous Access Networks - An Empirical Evaluation
Apr 2011
The growth of available broadband access technologies has brought an enormous challenge for operators wanting to ensure seamless mobility to its customers in heterogeneous environments. In this...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Adaptive Backoff Algorithm for IEEE 802.11 MAC Protocol
Jul 2009
A Mobile Ad-hoc NETwork (MANET) is a collection of mobile nodes that can communicate directly over wireless media, without the need for a pre-configured infrastructure. Several approaches have...
Provided by Scientific Research
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Whitepapers
Mechanisms for Security and Authentication of Wi-Fi Devices
Nov 2011
This paper presents an overview of the different approaches for Wi-Fi device security with particular focus on public hotspots. This mainly involves solving the authentication problem. Common, as...
Provided by International Journal of Computer Applications
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Whitepapers
Linear Diversity Combining Techniques Employed in Car-to-X Communication Systems
Apr 2011
This paper presents performance evaluation results of different linear diversity combining techniques that have been applied to IEEE 802.11p based Car-To-X (C2X) communication systems. More...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
A New Channel Assignment Scheme for Interference-Aware Routing in Vehicular Networks
Apr 2011
Mobile computing and vehicular communications are becoming a very important paradigm for wireless communications, mainly because of their ability to adapt to different mobile applications. In this...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
On the Performance of IEEE 802.11n Cyclic Shift Diversity Scheme for 802.11a/g Legacy Compatibility
Apr 2011
The final version of IEEE 802.11n amendment was ratified in September, 2009. It provides data rates up to 600 Mbps based on advanced Medium Access Control layer (MAC) protocols and an optimized...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
A New ACK Packet Transmission Scheme for Wireless Network Coding Systems Based on IEEE802.11a
Apr 2011
This paper proposes a new acknowledge packet transmission scheme for bidirectional two-hop wireless network coding systems based on IEEE802.11a standard in order to achieve higher TCP throughput....
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Influence of the Limited Retransmission on the Performance of WLANs Using Error-Prone Channel
Feb 2008
In WLANs, stations sharing a common wireless channel are governed by IEEE 802.11 protocol. Many conscious studies have been conducted to utilize this precious medium efficiently. However, most of...
Provided by Scientific Research
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Whitepapers
Bit-Stuffing in 802.11 Beacon Frame: Embedding Non-Standard Custom Information
Feb 2013
In an infrastructure Basic Service Set (BSS) beacon frames are transmitted periodically by the Access Point (AP) and announce the presence of a wireless network. It mainly consists of network...
Provided by International Journal of Computer Applications
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Whitepapers
Design of IEEE 802.16m and IEEE 802.11n Integrated Heterogeneous Network and Performance Analysis of the Network
Feb 2013
Advent of portable low cost smart & user friendly devices make the era of 21st century, the era of mobile communication & computing. So providing indoor, outdoor mobile facility has become a...
Provided by International Journal of Computer Applications
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Whitepapers
Understanding the Features of IEEE 802.11g in High Data Rate Wireless LANs
Feb 2013
In a practical application scenario, high data rates are required with increasing demand of wireless LANs. To upgrade the data rate of WLANs, the IEEE presented the IEEE 802.11g standard for...
Provided by International Journal of Computer Applications
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Whitepapers
Multi-Rate Transmission in 802.11-Based OSA Multi-Hop Ad Hoc Networks
Nov 2011
Opportunistic Spectrum Access (OSA) is a suitable approach to increase spectrum efficiency for the current spectrum management. This paper considers the Secondary User (SU) multi-rate multi-hop...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
A Contention-Free Data Transmission in Asymmetric Wireless Multi-Hop Access Networks
Oct 2008
The performance of wireless access network is often limited by the communication range between the access point and stations, due to long distance and shadowing. Wireless multi-hop access network...
Provided by Shizuoka Bank
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Whitepapers
Multi-Rate Opportunistic Spectrum Access in Multi-Hop Ad Hoc Networks
Jul 2011
Opportunistic Spectrum Access (OSA) is a suitable approach to increase spectrum efficiency for the current spectrum management. This paper considers the temporal aspect of 802.11- based OSA...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
C-MAC:A MAC Protocol Supporting Cooperation in Wireless LANs
Feb 2009
Cooperative diversity is a transmission technique, where multiple terminals form a virtual antenna array that realizes spatial diversity gain in a distributed fashion. The concept of cooperation...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
A Selective Delayed Channel Access (SDCA) for the High-Throughput IEEE 802.11n
Feb 2009
In this paper, the authors investigate the potential benefits of a Selective Delayed Channel Access algorithm (SDCA) for the future IEEE 802.11n based high-throughput networks. The proposed...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Design and Analysis for an 802.11-Based Cognitive Radio Network
Feb 2009
This paper considers a Distributed Opportunistic Spectrum Access (D-OSA) scenario in which multiple Cognitive Radio (CR) users attempt to access a channel licensed to some primary network. CR...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Calculating End-to-End Throughput Capacity in Wireless Networks With Consideration of Hidden Nodes and Multi-Rate Terminals
Apr 2011
To determine the end-to-end throughput capacity of a multi-hop route in wireless networks, existing work either use a simplistic approach to divide the 1-hop throughput capacity by the number of...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Evaluation of 60 GHz MIMO Channel Capacity in the Conference Room STA-STA Scenario
Apr 2011
The 2�2 MIMO channel capacity is studied for millimeter wave radio propagation between two STAtions (STASTA) on a table in a conference room. It is focused on whether a small antenna spacing...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Performance Comparison of Loading Algorithms for 80 MHz IEEE 802.11 WLANs
Apr 2011
Wireless local area networks are known to apply the same transmit power and modulation type over all employed OFDM subcarriers. Recent studies show that this can lead to significant performance...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Throughput and Delay Analysis for a Differentiated P-Persistent CSMA Protocol With the Capture Effect
Apr 2011
With the extensive deployment of 802.11 Wireless Local Area Networks (WLANs) and the need for better Quality of Service (QoS), the 802.11e MAC with service differentiation was developed. Analyzing...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Measurement-Based Small-Cell Coverage Analysis for Urban Macro-Offload Scenarios
Apr 2011
In order to cope with the expected future growth of mobile broadband traffic, network operators will be forced to dramatically increase their Radio Access Network (RAN) capacities. As neither the...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Fairness Assurance through TXOP Tuning in IEEE 802.11p Vehicle-to-Infrastructure Networks for Drive-Thru Internet Applications
Feb 2013
In this paper, the authors addresses an unfairness problem that exists among vehicles of distinct velocities in IEEE 802.11p based Vehicle-To-Infrastructure (V2I) networks used for drive-thru...
Provided by Scientific Research
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Whitepapers
Collision Resolution MAC Protocols for Wireless Ad Hoc Networks
Feb 2013
In wireless ad hoc networks, nodes cooperatively form a network without any infrastructure such as a BS/AP (Base Station or Access Point). The widely-used contention-based MAC protocol, IEEE...
Provided by Scientific Research
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Whitepapers
Issues and Flaws in Endpoint Based Call Admission Control for Voice Over WLAN
Mar 2013
This paper presents the various issues and drawbacks of the popular and existing scenario of carrying the Voice over the WLAN. The existing scenario that manages the Voice over Internet Protocol...
Provided by Amity University
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Whitepapers
A Survey on OFDM and IEEE WLAN Standard
Mar 2013
In the today's multimedia communication scenario, the demand for high data rate, reliable, high quality digital data increased quickly. Due to the high data rate transmission and the capability to...
Provided by International Journal of Computer Applications
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Whitepapers
Impact of BO and SO on Beacon-Enabled IEEE 802.15.4
Mar 2013
Today in every field wireless technology is used, for as Medical, Factory Automation, Search, Rescue, etc, IEEE 802.11 is an option but infrastructure cost is too high, so the option is IEEE...
Provided by International Journal of Computer Applications
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Whitepapers
Effectiveness of H.264 Error Resilience Techniques in 802.11e WLANs
Feb 2009
802.11 wireless local area networks are now common in the home. The 802.11e amendment allows for Quality of Service (QoS) provisioning over these networks to help meet the QoS demands of the...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
M/M/1 Queuing Model for Adaptive Cross-Layer Error Protection in WLANs
Feb 2009
The IEEE 802.11 WLAN is the most common technology for indoor broadband wireless access. However it does not guarantee Quality of Service (QoS) for many of the present and forthcoming...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Characteristics of Impulsive Noise in Electricity Substations
Aug 2009
Impulsive noise has the potential to degrade the performance and reliability of wireless communications systems. Such noise, which is especially prevalent in high-voltage electricity substations,...
Provided by EURASIP
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Whitepapers
Estimation of Impulsive Noise in an Electricity Substation
Nov 2010
Measurements of impulsive noise in a 400/275/132 kV electricity substation are presented. The measurements are made with three antennas having overlapping bands covering the range 100 MHz to 6...
Provided by University of Stirling
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Whitepapers
Economic Aspects of Intelligent Network Selection: A Game-Theoretic Approach
Sep 2011
With the advent of 4th Generation wireless systems, such as WiMAX and 3GPP Long Term Evolution (LTE), the world of wireless and mobile communications is becoming increasingly diverse in terms of...
Provided by University of Stirling
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Whitepapers
Throughput Performance of Two-Way Relaying in IEEE 802.11 Networks
Oct 2007
Conventional half-duplex relaying suffers from a pre-log factor of 1/2 in the capacity equation which reduces the spectral efficiency significantly. On the other hand half-duplex two-way relaying,...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Performance of a Cluster-Based MAC Protocol in Multiuser MIMO Wireless LANs
Apr 2010
The IEEE 802.11n specifies MIMO techniques to enhance data rate in WLANs. However, using Carrier Sense Multiple Access with Collision Avoidance (CSMA/CA), it can support only point-to-point links....
Provided by ETH Zurich
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Whitepapers
Wi-Fi & WiMAX: A Comparative Study
Feb 2013
Usually broadband wireless access networks are considered to be enterprise level networks providing the user with more capacity as well as coverage. The authors have seen that in remote...
Provided by Cornell University
-
White Papers
Implementation and Evaluation of a TDMA MAC for WiFi-Based Rural Mesh Networks
Oct 2009
WiFi mesh networks with outdoor links have become an attractive option to provide cost-effective broadband connectivity to rural areas, especially in developing regions. It is well understood that...
Provided by Association for Computing Machinery
-
White Papers
TDMA for Long Distance Wireless Networks
Sep 2009
Off late the UC Berkeley TIER Project studied the need to deploy network infrastructure to emerging regions. Their goal was to "Address the challenges in bringing the Information Technology...
Provided by University of Cambridge
-
White Papers
FreeMAC: Framework for Multi-Channel MAC Development on 802.11 Hardware
Aug 2008
Exponential growth in the number of wireless devices that operate in the limited unlicensed frequency spectrum necessitates the next generation of radio devices to be reconfigurable and sensitive...
Provided by Association for Computing Machinery
-
White Papers
Soft-TDMAC: A Software TDMA-Based MAC Over Commodity 802.11 Hardware
Jan 2009
This paper designs and implements Soft-TDMAC, a software Time Division Multiple Access (TDMA) based MAC protocol, running over commodity 802.11 hardware. Soft-TDMAC has a synchronization...
Provided by University of California
-
White Papers
Real-Time Support on IEEE 802.11 Wireless Ad-Hoc Networks: Reality Vs. Theory
Mar 2009
The usable throughput of an IEEE 802.11 system for an application is much less than the raw bandwidth. Although 802.11b has a theoretical maximum of 11 Mbps, more than half of the bandwidth is...
Provided by Institute of Electronics, Information and Communication Engineers
-
White Papers
Real-Time Video Surveillance Over IEEE 802.11 Mesh Networks
Feb 2009
In recent years, there has been an increase in video surveillance systems in public and private environments due to a heightened sense of security. The next generation of surveillance systems will...
Provided by Carnegie Mellon University
-
Case Studies
Flexible, Easy to Deploy and Manage Wireless Networking for Healthcare Facilities With Cooperative Control Wireless LAN From Aerohive
Feb 2009
Founded in 1989, privately owned Complete HealthCare Resources has been providing strategic solutions to long-term care, assisted living and retirement communities through management and...
Provided by Aerohive Networks
-
Case Studies
Health Care System Serves Four Health Care Facilities, Thousands of Employees, and Hundreds of Doctors, With One Wireless LAN Solution From Aerohive
Aug 2009
Riverside health care systems manage four facilities in Westchester County, just north of New York City. The health care provider is always looking to state-of-the-art medical technology to...
Provided by Aerohive Networks
-
White Papers
An Efficient Scheme for Solving Bandwidth Guaranteed Scheduling and Shortest Path Routing Problem in Wireless Mesh Networks
Jan 2008
The bandwidth problem is one of the most serious problems for multi-hop Wireless Mesh Networks (WMNs) due to the influence of link interference. This paper studies joint problem of...
Provided by Wuhan University
-
White Papers
Softspeak: Making VoIP Play Well in Existing 802.11 Deployments
Feb 2009
Voice over IP (VoIP) in 802.11 Wireless Networks (WiFi) is an attractive alternative to cellular wireless telephony. Unfortunately, VoIP traffic is well known to make inefficient use of such...
Provided by University of California
-
White Papers
RLS Channel Estimation and Tracking for MIMO-Extended IEEE 802.11a WLANs
Feb 2008
Wireless communication systems based on Multiple-Input Multiple-Output (MIMO) technology and Orthogonal Frequency Division Multiplexing (OFDM) has the potential to achieve enormous increase in the...
Provided by Universiti Putra Malaysia
-
White Papers
An Optimal Sensor Architecture for Wi-Fi Intrusion Detection
Feb 2008
This paper presents a novel approach to identifying illegitimate nodes in wireless networks. It demonstrates that, given a sufficiently dense sensor network, it is able to discriminate all network...
Provided by University of Melbourne
-
White Papers
The Analysis of Performance of IEEE 802.11 MAC Protocol Using Markov Chain
Jan 2008
Analyzing the effect of transmission errors on the performance of IEEE 802.11 is important since wireless channels are error-prone. Most of the existing work on the performance analysis of IEEE...
Provided by Dominican University
-
White Papers
Best Practices Guide for Deploying SpectraLink 8020/8030 Wireless Telephones
Jul 2009
Wi-Fi telephony, also known as Voice over Wireless LAN (VoWLAN), delivers the capabilities and functionality of the enterprise telephone system in a mobile handset. The Wi-Fi handset is a WLAN...
Provided by Polycom
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White Papers
Deploying Enterprise-Grade Wi-Fi Telephony
May 2009
Wi-Fi telephony, also known as Voice over wireless LAN (VoWLAN), delivers the all the capabilities and functionality of the enterprise telephone system in a mobile handset. The Wi-Fi phone is a...
Provided by Polycom
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Whitepapers
Accelerometer-Assisted 802.11 Rate Adaptation on Mobile WiFi Access
Aug 2012
The expansion of 802.11 AP deployments provides opportunistic Wi-Fi access in underground Mass Rapid Transit (MRT) system. However, such vehicular network faces the challenge of limited time for...
Provided by EURASIP
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Whitepapers
Cross-Layer Optimization for Video Transmission Over WLAN: Cross-Layer Prioritization
Aug 2012
As IEEE 802.11 wireless devices have become increasingly widespread, providing Quality of Service in the context of H.264/AVC, the video coding standard for future multimedia networking, has...
Provided by IGI Global
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Whitepapers
Accelerometer-Assisted 802.11 Rate Adaptation on Mass Rapid Transit System
Sep 2010
In-station Wi-Fi AP deployment provides opportunistic Wi-Fi access in underground Mass Rapid Transit (MRT) sys-tem. But such vehicular network faces the obstacle of limited connection time from...
Provided by Association for Computing Machinery
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Whitepapers
Enhancements to IEEE 802.11 MAC to Avoid Packet Collisions
Oct 2008
The IEEE 802.11 WLAN standard specifies two different ways in which a wireless STAtion (STA) can gain access to the channel - distributed channel access where each STA can access channel in a...
Provided by Institute of Electrical & Electronic Engineers
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White Papers
Key Performance Benefits of 802.11n
Jan 2009
It is well documented that wireless performance varies based on a variety of factors such as the type of applications delivered over Wi-Fi or the physical challenges presented by building...
Provided by Cisco Systems
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White Papers
Cisco ClientLink: Optimized Device Performance With 802.11n
May 2009
Over the next few years Wi-Fi networks will transition to 802.11n technology. During this time many networks will support a mix of 802.11a/g and 802.11n clients. Because they operate at lower data...
Provided by Cisco Systems
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Whitepapers
802.11 Attacks: Version 1.0
Feb 2008
IEEE 802.11 refers to the set of standards set forth by the Institute of Electrical and Electronics Engineers (IEEE). More specifically, working group 11 of the 802 category for LAN/MAN...
Provided by McAfee
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White Papers
Wi Fi Protected Access-Pre-Shared Key Hybrid Algorithm
Nov 2009
Potentially large number of cryptography solutions to attain security is widely known and recognized. Looking for a stronger scheme is the aim of most researchers to hide valuable information from...
Provided by Hannam university
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White Papers
Yes It Is Too Wi-Fi, and No Its Not Inherently Secure
Mar 2009
The focus of this paper are those 802.11 wireless LAN's that utilize FHSS for the 2.4 GHz ISM band. The purpose of this paper is to familiarize the reader with the mechanics of these FHSS based...
Provided by Black Hat
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Tools & Templates
Guide to Deploying 802.11n Wireless LANs
Mar 2010
This comprehensive guide covers the fundamentals of 802.11n - what you need to know when planning or preparing for an 802.11n deployment or migration. Get an overview of layer 1 and layer 2...
Provided by Fluke Networks
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Webcasts
802.11b Design With Simulink
Feb 2006
This webcast includes the live construction of an 802.11b link supporting the 1Mbps mode in real-time, followed by a review of a complete model supporting all 4 modes. IEEE 802.11b is currently...
Provided by MathWorks
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White Papers
FIPS 140-2 Security for Long Range Wireless LAN/MAN Application: Wi-Fi Base Station
Oct 2007
802.11 (Wi-Fi) Wireless Local Area Networks (WLANs) have enjoyed enormous growth over the last few years. As Wi-Fi swept into private homes and small offices at a record setting pace, enterprises...
Provided by Vivato
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White Papers
A Multi-Radio 802.11 Mesh Network Architecture
Jan 2010
Routers equipped with multiple 802.11 radios can alleviate capacity problems in wireless mesh networks. However, a practical, complete system architecture that can realize the benefits of multiple...
Provided by University of California
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Webcasts
Profit from Power Savings: Cut Costs & Green Your IT Operations with PC Power Management
Mar 2010
PC power management can green your IT operations, deliver significant, tangible cost reductions and reduce your PC energy consumption. Watch this new program and let the experts show you how to...
Provided by Verdiem
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Case Studies
The George Washington University
Feb 2009
The George Washington University (GW) is the largest institution of higher education in the nation's capital. GW's Technology, Operations, and Engineering team is nationally recognized as a leader...
Provided by Avaya
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Case Studies
KPN: Holland's Largest Wi-Fi Hotspot Provider - Continues to Connect Millions Each Year Via Proxim Wi-Fi
Dec 2009
KPN, Holland's largest provider of Wi-Fi hotspots, was looking for the highest-performance, most cost-effective way to build out their Wi-Fi hotspots. With thousands of hotspots deployed and more...
Provided by Proxim Wireless
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Case Studies
Washington State Ferry System Offers Wi-Fi to Passengers on Boats Using Proxim for Wireless Backhaul From Ship to Shore
Dec 2009
Washington State Ferries (WSF) carries 25,000 passengers per day - many of whom are commuters who prefer to stay connected and use the commute time to remain productive. As an added service to...
Provided by Proxim Wireless
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Whitepapers
Optimum MIMO-OFDM Receivers With Imperfect Channel State Information
Oct 2008
Channel estimation inaccuracy is known to affect significantly the error performance of coded communication systems. This applies in particular to broadband MIMO channels, often considered in...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
IEEE 802.11s Wireless Mesh Networks for Last-Mile Internet Access: An Up-Down Link Approach
Jul 2012
Being multi-hop wireless networks, Wireless Mesh Networks (WMNs) are witnessing limited network capacity, mainly due to the contention among nodes in multi-hop paths. Several techniques have been...
Provided by Journal of Computing
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Whitepapers
ARM Based Mobile Phone-Embedded Real-Time Remote Video Surveillance System With Network Camera
Aug 2012
Monitoring facilities will be necessary and useful for the people daily life, because it is very important for them to think about their security. This work developed an remote video surveillance...
Provided by International Journal of Emerging Technology and Advanced Engineering (IJETAE)
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Whitepapers
Evalaution of Path Loss Models of Wimax in Sub Urban Environment
Jun 2012
It is a challenge to the wireless and networking engineer to decide upon the path loss model applicable to the different environments. Estimation of path loss is very important in initial...
Provided by International Journal of Engineering Research & Technology (IJERT)
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White Papers
802.11 Wireless Options: Uncovering the Reality of Common Security Practices
Apr 2010
The past decade's large increase in wireless devices leaves the security of those devices very much in a state of fluctuation. Unfortunately, what many users think to be the standard techniques...
Provided by East Carolina University
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White Papers
Accelerating the Enterprise Network Using 802.11n Wireless
Jan 2010
To design and deploy a wireless network that will be used by the majority of Intel employees and that operates as effectively as a wired LAN at a reasonable cost, Intel IT investigated moving to...
Provided by Intel
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White Papers
Achieving Pervasive Mobility Through Integrated Campus Networking
May 2010
Wireless technology is transforming businesses everywhere. Discover how leading organizations are implementing integrated campus network infrastructures to provide wired and wireless connectivity...
Provided by Brocade Communications Systems
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White Papers
The Case For Next-Generation Wireless LANs: Faster Connections and more Applications and Users
May 2010
Until very recently, there were legitimate concerns about deploying wireless technology. Not anymore. Discover how the 802.11n standard makes the case for Wireless LAN becoming an integral part of...
Provided by Brocade Communications Systems
