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wireless lan
(1552 results)-
White Papers
Sphere Constrained Block RSSE With Per-Survivor Intra-Block Processing for CCK Transmission
May 2008
In the Wireless Local Area Network (WLAN) standard IEEE 802.11b, Complementary Code Keying (CCK) modulation has been adopted for the high data rate transmission mode, which can be considered as a...
Provided by University of British Columbia
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White Papers
Device-Transparent Network-Layer Handoff for Micro-Mobility
Jun 2009
An emerging class of applications for enterprise Wireless LANs (WLAN) is Voice over IP (VoIP) applications, which impose a stringent requirement on end-to-end delay. Because access points on an...
Provided by Stony Brook University
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White Papers
Monetizing Services in the New Hyperconnected World
Jul 2011
This paper examines the challenges of monetizing new services in today's highly competitive economy. In industries as diverse as high tech, financial services, and telecommunications, companies...
Provided by SAP
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White Papers
A Comparative Study of DECT and WLAN Signals for Indoor Localization
Mar 2009
While there is more to context than location, localization and positioning must continue to be improved. Location-aware applications, such as Google Latitude, are enjoying great popularity....
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Empower Field Service Engineers to Achieve Service Excellence
Jul 2011
Find out how the SAP CRM Field Service mobile app gives your field service engineers anywhere, anytime access to relevant information from mobile devices. This makes them more productive and your...
Provided by SAP
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White Papers
Experimental Study of the Impact of WLAN Interference on IEEE 802.15.4 Body Area Networks
Feb 2009
As the number of wireless devices sharing the unlicensed 2.4 GHz ISM band increases, interference is becoming a problem of paramount importance. The authors experimentally investigate the effects...
Provided by Technische Universität Berlin
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White Papers
PRISM: Improving the Performance of Inverse-Multiplexed TCP in Wireless Networks
Jan 2011
Multi-homed mobile hosts in physical proximity may spontaneously team up to form a community and run high-bandwidth applications by pooling their low Wireless Wide-Area Network (WWAN) bandwidths...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
An Optimal Transmission Strategy for IEEE 802.11 Wireless LANs: Stochastic Control Approach
Apr 2008
The family of IEEE 802.11 Wireless Local Area Network (WLAN) standards supports multiple transmission rates in the PHYsical layer (PHY). This multi-rate capability offers a viable means of coping...
Provided by University of Michigan
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White Papers
Opportunistic Packet Scheduling in Body Area Networks
Jan 2011
Significant research efforts are being devoted to Body Area Networks (BAN) due to their potential for revolutionizing healthcare practices. Energy-efficiency and communication reliability are...
Provided by CISTER
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White Papers
User-Centric Utility-Based Data Replication in Heterogeneous Networks
Feb 2008
Information overload and convergence of devices aggravate the difficulties of accessing data distributed among various user devices especially when this is performed by mobile users and over...
Provided by Dublin City University
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White Papers
Characterizing the IEEE 802.11 Traffic: The Wireless Side
Jan 2011
Many studies on measurement and characterization of wireless LANs have been performed recently. Most of these measurements have been conducted from the wired portion of the network based on wired...
Provided by University of Maryland
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White Papers
The Case for FEC-Based Reliable Multicast in Wireless Mesh Networks
Jan 2011
Many important applications in wireless mesh networks require reliable multicast communication. Previously, Forward Error Correction (FEC) techniques have been proved successful for providing...
Provided by Purdue University
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White Papers
FIRM: Flow-Based Interference-Aware Route Management in Wireless Mesh Networks
May 2009
In IEEE 802.11-based wireless mesh networks, routing is crucial in achieving high throughput in face of both interflow and intra-flow interference. Prior work focuses on finding the maximum...
Provided by Seoul National University
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White Papers
Leader-Based Rate Adaptive Multicasting for Wireless LANs
Aug 2007
Multicasting is useful for various applications such as multimedia broadcasting. In current 802.11, multicast frames are sent as broadcast frames at a low transmission rate without any...
Provided by Seoul National University
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White Papers
Path Virtualization Using Fountain Code for Video Streaming Over Heterogeneous Networks
Apr 2009
In this paper, the authors propose an effective path virtualization using fountain code that provides the data rate as high as possible with satisfying delay and block loss rate constraints to...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Quantifying the Interference Gray Zone in Wireless Networks: A Measurement Study
Feb 2009
In wireless networks where communications are made over a shared medium, interference and collisions are the primary causes of packet drops. In multi-hop networks such as wireless mesh networks,...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Interferer Classification, Channel Selection and Transmission Adaptation for Wireless Sensor Networks
Aug 2009
Wireless Sensor Networks (WSNs) are being increasingly deployed in office blocks or residential areas for commercial applications, such as home automation, meter reading, surveillance, among...
Provided by Institute of Electrical and Electronics Engineers
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Whitepapers
Performance Analysis of Multi User MIMO System With CDD for 802.11n Applications
Sep 2009
As the demand of high quality service in next generation wireless communication systems, a high performance of data transmission requires an increase of spectrum efficiency and an improvement of...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
RTL Design of 1.2Gbps MIMO WLAN System and Its Business Aspect
Sep 2009
This paper deals with the development of 1.2 Gbps MIMO wireless LAN system based on IEEE802.11TGac's functional requirements. It reaches 33 meter propagation distance by using 80MHz of bandwidth...
Provided by Institute of Electrical & Electronic Engineers
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White Papers
Top Myths of Unified Communications
Jun 2007
As with any new technology, myths and misinformation have sprung up about unified communications. As voice, video, and data networks have begun to converge, more organizations are seeing the value...
Provided by Cisco Systems
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White Papers
Dynamic Spatial Backoff in Fading Environments
Apr 2008
The authors present a dynamic spatial backoff method to resolve channel contention in wireless ad-hoc networks. They argue that each node should adjust its receiver sensitivity level according to...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Predictive or Oblivious: A Comparative Study of Routing Strategies for Wireless Mesh Networks Under Uncertain Demand
Apr 2008
Traffic routing plays a critical role in determining the performance of a wireless mesh network. To investigate the best solution, existing work proposes to formulate the mesh network routing...
Provided by Vanderbilt University
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Whitepapers
Time-Correlated Fading Can Mitigate Rate Anomaly in IEEE 802.11 WLANs
Sep 2009
It is well known that rate anomaly may occur when more than two stations communicating with an AP use different data rates in IEEE 802.11 WLANs. This statement may be valid based on the assumption...
Provided by Institute of Electrical & Electronic Engineers
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White Papers
Comparisons of Error Control Techniques for Wireless Video Multicasting
Jan 2011
Packet loss rates in Wireless Local Area Networks (WLANs) are highly dynamic and location dependent. Therefore, multicasting of compressed video streams over such networks require significantly...
Provided by Michigan State University
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White Papers
Service Delivery Technologies for Metro Ethernet Networks
Jul 2007
Ethernet had its origins in providing network connectivity for a single organization. With the introduction of metropolitan and wide area Ethernet services, providers started using this Ethernet...
Provided by Nortel Networks
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White Papers
Packet Dispersion in IEEE 802.11 Wireless Networks
Jan 2011
Packet dispersion techniques have been commonly used to estimate bandwidth in wired networks. However, current packet dispersion techniques were developed for wired network environments and can...
Provided by Worcester Polytechnic Institute
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White Papers
Managing TCP Connections in Dynamic Spectrum Access Based Wireless LANs
Feb 2010
Wireless LANs have been widely deployed as edge access networks in home/office/commercial buildings, providing connection to the Internet. Therefore, performance of end-to-end connections to/from...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Virtual WiFi: Bring Virtualization From Wired to Wireless
Mar 2011
As virtualization trend is moving towards "Client virtualization", wireless virtualization remains to be one of the technology gaps that haven't been addressed satisfactorily. Today's approaches...
Provided by Association for Computing Machinery
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White Papers
Cognitive Medium Access: Constraining Interference Based on Experimental Models
Dec 2007
In this paper the authors design a cognitive radio that can coexist with multiple parallel WLAN channels while abiding by an interference constraint. The interaction between both systems is...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
IEEE 802.21 (Media Independent Handover Services) Overview
Jul 2007
In recent years, multi-technology enabled terminals are becoming available. Such multi-mode terminals pose new challenges to mobility management. In order to address some of these challenges, the...
Provided by Universidad Carlos III de Madrid
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White Papers
On Link Rate Adaptation in 802.11n WLANs
Feb 2011
The IEEE 802.11n standard is gaining popularity to achieve high throughput in wireless LANs. In this paper, the authors explore link adaptation in practical 802.11n systems using experiments with...
Provided by Georgia Institute of Technology
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White Papers
Practical Multi-Antenna Spatial Reuse in WLANs
Jul 2010
Smart antennas can improve spatial reuse in a wireless network through interference suppression. However, interference suppression requires support from clients in the form of channel estimation,...
Provided by Georgia Institute of Technology
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White Papers
Practical Beamforming Based on RSSI Measurements Using Off-the-Shelf Wireless Clients
Nov 2009
WLANs have become an important last-mile technology for providing internet access within homes and enterprises. In such indoor deployments, the wireless channel suffers from significant multi-path...
Provided by Association for Computing Machinery
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White Papers
A Dynamic Medium Access Control Algorithm for IEEE 802.11 Wireless Local Area Networks
Jun 2007
The Wireless Local Area Network (WLAN) is a flexible data communication system that can either replace or extend a wired LAN to provide location independent network access between computation and...
Provided by University of Bradford
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White Papers
A Measurement Study of Bandwidth Estimation in IEEE 802.11g Wireless LANs Using the DCF
May 2008
In this paper the authors present results from an extensive measurement study of wireless bandwidth estimation in IEEE 802.11 WLANs using the distributed coordination function. They show that a...
Provided by International Federation for Information Processing
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White Papers
Improving Video Quality for Handover Between Legacy MIPv4 Overlay Networks
Sep 2010
In this paper, the authors introduce a novel Specialized MIP implementation (S-MIP) to reduce native MIP latency into a scenario in which Wireless Local Network (WLAN) and 3G networks are...
Provided by University of Brasilia
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White Papers
DynTun: A Tool for Providing Multihoming Support in Wireless Mesh Networks
Sep 2010
This paper proposes DynTun, a tool to provide multihoming support in Wireless Mesh Networks (WMNs). This problem rises from the interaction between dynamic routing usually employed in WMNs and the...
Provided by Universidade Federal Fluminense
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White Papers
Intrusion Tolerance In Wireless Environments: An Experimental Evaluation
Sep 2007
This paper presents a study on the performance of intrusion-tolerant protocols in wireless LANs. The protocols are evaluated in several different environmental settings, and also within the...
Provided by FCUL
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White Papers
DCF Improvement for Satisfactory Throughput of 802.11 WLAN
Jul 2011
As demand for deployment and usage is increased in WLAN environment, achieving satisfactory throughput is one of the challenging issues. Initially as WLAN environment is data centric, the best...
Provided by Veermata Jijabai Technological Institute
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White Papers
Achieving Improved Performance at Access Point in WLAN Infrastructure Mode
Jul 2011
In recent years WLAN is projecting itself as alternate solution to carry out enterprise's network traffic. The basic mode of WLAN is classified as ad-hoc mode and infrastructure mode....
Provided by K. J. Somaiya College of Engineering
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Podcasts
Designing for Voice / Tech Tools
Jan 2012
In this podcast, the speakers discussed about when designing Wireless LANs for Voice Deployment. The speakers' experience as a CWNE who has focused on voice WLANs brings some great ideas to this...
Provided by Wireless LAN Professionals
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Podcasts
Maps & Compass / Social Media
Jan 2012
In this podcast, the speakers share some knowledge about the use of Maps and Compasses with respect to Wireless LANs. The speakers also discuss about how one need to have their own personal brand,...
Provided by Wireless LAN Professionals
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Podcasts
Visualizing RF/Reliability in Electronics
Jan 2012
In this podcast, the speaker talking about 'Visualizing RF'. The final segment comes to one via the speaker, the world-traveling experienced technician talking to one about the 'Reliability of...
Provided by Wireless LAN Professionals
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Podcasts
Past, Present & Future of Hotspots / It's All About the People
Jan 2012
In this podcast, the speakers explained and designed to education, inform, entertain and inspire Wireless LAN Professionals. Those folks dedicated to the craft of designing, installing,...
Provided by Wireless LAN Professionals
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Podcasts
Five Ways to Stay Current With Wireless LAN Technology
Jan 2012
Sometimes students, or clients, ask how they can stay in tune with all the changes and updates to Wireless LAN Technologies. It is a very fast moving target. But in today's ever moving world, one...
Provided by Wireless LAN Professionals
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Podcasts
Don't DoS Your Boss
Jan 2012
In this podcast, the speakers talking about Wireless Intrusion Prevention Systems running amok, causing harm to one own wireless network. So, the speakers gave as name, "Don't DoS Your Boss".
Provided by Wireless LAN Professionals
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Podcasts
Twitter for the WLAN Professional
Jan 2012
In this podcast, the speakers talking about this 'Social media' thing, and wondered why everyone is talking about it. One might even have a Facebook page. But that's just for sharing personal...
Provided by Wireless LAN Professionals
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Podcasts
Morality of Buying/Selling Legacy WiFi
Jan 2012
In this podcast, the speaker explains about people selling legacy WiFi equipment are like map sellers today trying to hawk their wares by selling maps showing dragons and the world as flat. The...
Provided by Wireless LAN Professionals
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Webcasts
What's in My WLAN Toolkit Case Video
Jan 2012
In this webcast, the presenter puts together that shows the equipment, and take on consulting gigs. It might give one some ideas of things one might want to add to one holiday shopping lists.
Provided by Wireless LAN Professionals
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White Papers
The Fulfillment of Design and Simulation for Bandwidth Allocation Algorithm Based on User Satisfaction and Profit
Jan 2012
The paper mainly introduces SDBA of heterogeneous wireless network consisting of cellular wireless system and wireless LAN. The SDBA with a main aiming of improving user satisfaction adopts PF...
Provided by International Association of Computer Science & Information Technology (IACSIT)
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White Papers
Research on IEEE 802.11 Wireless LANs Traffic Characteristics Analysis for Supporting Picture Archiving and Communication System (PACS)
Jan 2012
Nowadays, when a health system uses medical imaging or Picture Archiving and Communication System (PACS) medicine and clinical information services such as X-ray, laboratory work, and Medical...
Provided by International Association of Computer Science & Information Technology (IACSIT)
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White Papers
Numerical and Experimental Analysis of Impedance Matched Inverted-L and Stair Inverted-L Antenna for 5 GHz WLAN Operation
Aug 2010
This paper presents impedance matched high gain Inverted-L Antenna (ILA) and stair ILA for 5 GHz Wireless Local Area Network (WLAN) by means of numerical and experimental analysis. Numerical...
Provided by Academy Publisher
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White Papers
A New Evaluation Model for Security Protocols
Sep 2011
Till today, the study of performance of security protocols of WLAN has been one of research focuses. Whereas, owing to enormous complexity and low efficiency of modeling security protocols, there...
Provided by Academy Publisher
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White Papers
Shortcut Frame Routing and Tunneling Between Wireless Bridges
Jan 2012
Wireless Local Area Networks (WLANs) are limited in size, geographically distance covered, and bandwidth. To extend a WLAN, interconnecting devices called AP/bridges are used to connect multiple...
Provided by International Association of Computer Science & Information Technology (IACSIT)
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White Papers
A New Approach for Implementing RMI in Mobile Phone Platforms
May 2011
This paper discusses challenges of implementing RMI over mobile phone platforms. Improving Distributed Computing capabilities in mobile phones has three emerging challenges: first, mobile devices...
Provided by International Association of Computer Science & Information Technology (IACSIT)
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White Papers
Proposed Enhancement of IEEE802.11e WLAN Through Real Time Simulation Study
Oct 2009
One of the most successful WLAN protocols is IEEE 802.11. That is due to the simplicity and robustness against failures of its medium access control protocol. In addition, IEEE introduces the...
Provided by International Islamic University Malaysia
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White Papers
Comparisons of SCR and Active-set Methods for PAPR Reduction in OFDM Systems
Apr 2010
Signal to Clipping noise Ratio (SCR) and active-set methods are two existing methods for Peak-to-Average Power Ratio (PAPR) reduction based on tone reservation. In this paper, the computational...
Provided by Academy Publisher
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White Papers
QoS-aware Rate Control Algorithm in Long Distance Wireless Mesh Networks
Jul 2010
Supporting delay sensitive real-time traffic such as video and voice over Wireless Local Area Network-based (WLAN) Long Distance Wireless Mesh Networks (LDWMN) is a challenging and attractive...
Provided by Academy Publisher
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White Papers
Security Analysis and Improvements on WLANs
Mar 2011
IEEE 802.11i standard defines the security specifications of IEEE 802.11 series Wireless Local Area Network (WLAN). It is the replacement of the old security standard named Wired Equivalent...
Provided by Academy Publisher
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White Papers
Soft-Handoff in WLAN Realized by Dual Link
Apr 2011
WLAN has been widely deployed in many aspects such as city hotspots and video surveillance system. When the mobile station roams in WLAN, it will switch among different Access Points (AP). This...
Provided by Academy Publisher
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White Papers
Adaptive Autocorrelation Approach for Fingerprint-based Distance Dependent Positioning Algorithms in WLAN Indoor Areas
Oct 2011
This paper addresses the adaptive autocorrelation approach for the fingerprinting-based Distance Dependent Positioning Algorithms (DDPAs) in Wireless Local Area Network (WLAN) indoor environment....
Provided by Academy Publisher
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White Papers
Parameter Ranking and Reduction in Communication Systems
Mar 2011
Parameter reduction from experimental data is an important issue arising in many frequently encountered problems with different types of applications in communications engineering. However, the...
Provided by International Journal of Scientific & Engineering Research
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White Papers
Reducing Layer 2 Handoff Latency in WLANs Using Advanced Context Distribution
Nov 2011
WLANs have experienced very fast deployment in both public and private areas over recent years. They provide nontrivial replacement for the complicated and high cost wired LANs. However, the...
Provided by International Journal of Scientific & Engineering Research
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White Papers
WPAN Interference Cancellation From OFDM Based WLAN : Strategic Comparisons of Coexistence Techniques
Sep 2011
WLAN and WPAN operate in the same 2.4GHz ISM band. So whenever they operate nearby interfere with each other, results in performance degradation for both the system in terms of bit error rate or...
Provided by Cyber Journals
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White Papers
An Algorithm for Optimizing Vertical Handoff Between WLAN and Cellular Networks
Aug 2011
Today, the advent of heterogeneous wireless networks has caused a revolution in the telecommunication systems. As IP-based wireless networking increases in popularity, the handoff issue is taken...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Indoor Positioning in Wireless LANs Using Compressive Sensing Signal-Strength Fingerprints
Feb 2011
Accurate indoor localization is a significant task for many ubiquitous and pervasive computing applications, with numerous solutions based on IEEE802.11, Bluetooth, ultrasound and infrared...
Provided by University of Crete
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White Papers
Crowdsourced Radiomap for Room-Level Place Recognition in Urban Environment
Oct 2009
The proliferation of WLAN infrastructures has facilitated numerous indoor localization techniques using WLAN fingerprints. In particular, identifying a room or a place in urban environments could...
Provided by Korea Advanced Institute of Science and Technology
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White Papers
Achieving Proportional Fairness Via AP Power Control in Multi-Rate WLANs
Nov 2011
In this paper, the authors consider how to achieve proportional fairness in multi-rate 802.11 WLANs by investigating an integrated problem of power control and AP Association in order to provide...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Maximizing Throughput When Achieving Time Fairness in Multi-Rate Wireless LANs
Jan 2012
This paper focuses on designing a distributed medium access control algorithm that aims at achieving time fairness among contending stations and throughput maximization in an 802.11 wireless LAN....
Provided by George Washington University
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White Papers
Reliable Multicast MAC Protocol for Spatial Reuse Efficiency Assisted by Multicarrier DS-CDMA in WLAN Systems
Sep 2011
The authors propose a reliable multicast MAC protocol based on the multicarrier direct-sequence code-division multiple access (MC DS-CDMA) scheme to enhance spatial reuse efficiency in Wireless...
Provided by Ajou University
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White Papers
Securing IEEE 802.11g WLAN Using OpenVPN and its Impact Analysis
Nov 2011
Like most advances, wireless LAN poses both opportunities and risks. The evolution of wireless networking in recent years has raised many serious security issues. These security issues are of...
Provided by Academy & Industry Research Collaboration Center
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White Papers
The VPQ Scheduler in Access Point for Voip Over WLAN
Dec 2011
The Voice over Internet Protocol (VoIP) application has observed the fastest growth in the world of telecommunication. VoIP is seen as a short-term and long-trem transmission for voice and audio...
Provided by Universiti Utara Malaysia
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White Papers
Spatio-Temporal Modeling of Wireless Users Internet Access Patterns Using Self-Organizing Maps
Mar 2011
Users behavior and interests will play a central role in future mobile networks. They introduce a systematic method for large-scale multi-dimensional analysis of online activity for thousands of...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Latin Square Based Channel Access Scheduling in Large-Scale WLAN Systems
Jan 2011
WLAN systems based on the IEEE 802.11 could contain hundreds even up to thousands of wireless access points nowadays. However, IEEE 802.11 MAC protocols, including DCF, PCF and EDCA mechanisms,...
Provided by University of California
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White Papers
New Channel Assignment Method for Access Points in Wireless LANs
Nov 2011
Wireless LANs topology communicates using radio frequencies. The number of these frequencies is limited and not enough to assign a special frequency for each Access Point, this means that the...
Provided by International Journal of Computer Science Issues
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White Papers
Real-Time Communications for Wireless Sensor Networks: A Two-Tiered Architecture
Nov 2009
While many approaches have been proposed to deal with energy/latency trade-offs, they are likely to be insufficient for the applications where reduced delay guarantee is the main concern. In this...
Provided by Taylor & Francis Group
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White Papers
Location Privacy Protection From RSS Localization System Using Antenna Pattern Synthesis
Mar 2011
This paper studies the problem of location privacy protection in Wireless LAN (WLAN) environment, where Received Signal Strength (RSS) at Access Points (AP) can potentially be obtained by...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
A Multiband Diversity Antenna System for Compact Mobile/Wireless Devices: Modeling and Performance Evaluation
Dec 2007
A novel compact multiband diversity antenna system appropriate for integration onto space-limited devices is presented. It comprises three pairs of printed fractal Minkowski and Koch monopole...
Provided by Hindawi Publishing
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White Papers
Mutual Coupling Effects on Pattern Diversity Antennas for MIMO Femtocells
Apr 2010
Diversity antennas play an important role in wireless communications. However, mutual coupling between multiple ports of a diversity antenna has significant effects on wireless radio links and...
Provided by Hindawi Publishing
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White Papers
Dynamic Range Consideration in MIMO Systems with Hybrid Antenna Selection
Jun 2011
A Hybrid Antenna Selection (HAS), also called Soft Antenna Selection (SAS), method is basically implemented by a Linear Network (LN) located in RF domain of Multiple Input Multiple Output (MIMO)...
Provided by Hindawi Publishing
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White Papers
A Dynamic Medium Access Control Algorithm for IEEE 802.11 Wireless Local Area Networks
Jun 2007
The Wireless Local Area Network (WLAN) is a flexible data communication system that can either replace or extend a wired LAN to provide location independent network access between computation and...
Provided by University of Bradford
-
White Papers
A Measurement Study of Bandwidth Estimation in IEEE 802.11g Wireless LANs Using the DCF
May 2008
In this paper the authors present results from an extensive measurement study of wireless bandwidth estimation in IEEE 802.11 WLANs using the distributed coordination function. They show that a...
Provided by International Federation for Information Processing
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White Papers
Improving Video Quality for Handover Between Legacy MIPv4 Overlay Networks
Sep 2010
In this paper, the authors introduce a novel Specialized MIP implementation (S-MIP) to reduce native MIP latency into a scenario in which Wireless Local Network (WLAN) and 3G networks are...
Provided by University of Brasilia
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White Papers
DynTun: A Tool for Providing Multihoming Support in Wireless Mesh Networks
Sep 2010
This paper proposes DynTun, a tool to provide multihoming support in Wireless Mesh Networks (WMNs). This problem rises from the interaction between dynamic routing usually employed in WMNs and the...
Provided by Universidade Federal Fluminense
-
White Papers
Intrusion Tolerance In Wireless Environments: An Experimental Evaluation
Sep 2007
This paper presents a study on the performance of intrusion-tolerant protocols in wireless LANs. The protocols are evaluated in several different environmental settings, and also within the...
Provided by FCUL
-
White Papers
DCF Improvement for Satisfactory Throughput of 802.11 WLAN
Jul 2011
As demand for deployment and usage is increased in WLAN environment, achieving satisfactory throughput is one of the challenging issues. Initially as WLAN environment is data centric, the best...
Provided by Veermata Jijabai Technological Institute
-
White Papers
Achieving Improved Performance at Access Point in WLAN Infrastructure Mode
Jul 2011
In recent years WLAN is projecting itself as alternate solution to carry out enterprise's network traffic. The basic mode of WLAN is classified as ad-hoc mode and infrastructure mode....
Provided by K. J. Somaiya College of Engineering
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White Papers
Attacks on Public WLAN-Based Positioning Systems
Jun 2009
In this paper, one studies the security of public WLAN-based positioning systems. Specifically, the authors investigate the Skyhook positioning system, available on PCs and used on a number of...
Provided by Association for Computing Machinery
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White Papers
VoIP Over WMN: Effect of Packet Aggregation
Jun 2011
VoIP services are getting more and more popular day by day. In order to meet the users demand for such services irrespective of users location requires wide area wireless coverage .To this extent,...
Provided by Engg Journals Publications
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White Papers
Performance Evaluation of L3 Handover Latency in MIPv6
Jun 2011
Recent years in the field of mobile communications have brought two significant requirements - seamless service delivery and Quality of Service provisioning. Seamless mobility goes hand in hand...
Provided by G.Pulla Reddy Engineering College
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White Papers
Performance and Evaluation of IEEE 802.11e Using QUALNET
Mar 2011
IEEE 802.11 MAC (Medium Access Control) algorithms is unable to support modern multimedia applications which require certain level of Quality of Service (QoS) guarantees in terms of consistent, in...
Provided by Baba Banda Singh Bahadur Engineering College
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Case Studies
Holland Christian Schools Make the Move to 802.11n Smart Wireless LANs
Nov 2008
Going through a $27 million renovation and expansion of its facilities, Holland Christian Schools needed a faster and better wireless infrastructure. But as user densities grew and applications...
Provided by Ruckus Wireless
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White Papers
A Performance Comparison of Virtual Backbone Formation Algorithms for Wireless Mesh Networks
Aug 2009
Currently wireless networks are dominant by star topology paradigm. Its natural the evolution is towards wireless mesh multi-hop networks. This paper compares the performance of several algorithms...
Provided by Universidad de Alcalá
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White Papers
Dynamic Metric Choice Routing for Mesh Networks
Oct 2008
In this paper, the authors propose an extension to the proactive Optimized Link State Routing (OLSR) protocol in order to provide quality of service and support to applications using the TCP...
Provided by Universidade Federal do Paraná
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White Papers
Usage Scenarios and Application Requirements for Wireless Mesh Networks
Jul 2009
Reduction of network deployment and operation costs and integration of wireless access networks with fixed broadband access technologies is a key enabler for small and medium scale enterprises to...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
A Printed Monopole Antenna With Symmetric Meandered Arms for WLAN, WiMAX Applications
Mar 2011
In this paper, a planar dual band symmetric meandered arms monopole antenna for Wireless Local Area Network (WLAN) & WiMAX applications is presented. The antenna consists of two symmetric...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
CPW Fed Double T-Shaped Array Antenna With Suppressed Mutual Coupling
Feb 2010
A compact CPW-fed double T-Shaped antenna is proposed for dual-band Wireless Local Area Network (WLAN) operations. For the proposed antenna, the -10 dB return loss bandwidth could reach about...
Provided by Islamic Azad University
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White Papers
On the Exploitation of ACK Cancellation for Spatial Reuse in Unplanned Multi-Hop WLANs
Jan 2011
Spatial reuse is an important challenge in multi-cell WLAN networks, such as ad-hoc and mesh networks, as well as sectorized antenna WLANs. However, the asynchronous handshake employed in the...
Provided by University of Rome
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White Papers
Managing Wireless HotSpots: The Unify Approach
Jan 2011
This paper presents and discusses user, account, and traffic management in a WLAN based HotSpot. The HotSpot is a large WLAN infrastructure at the Faculty of Science of the University of Trento...
Provided by University of Trento
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White Papers
Are 802.11 Link Quality Broadcast Measurements Always Reliable?
Jan 2011
This paper describes an unexpected finding concerning link quality measurements carried out through broadcast frames. The authors found out that, with experimental equipments/drivers widely used...
Provided by Association for Computing Machinery
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White Papers
How to Exploit Spatial Diversity in Wireless Industrial Networks
Mar 2008
Wireless industrial LANs differ from other wireless LANs, like the ones used in home or office environments, mainly in that they have to satisfy stringent requirements in terms of real-time and...
Provided by Technische Universität Berlin
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White Papers
Understanding the Role of Multi-Rate Retry Mechanism for Effective Rate Control in 802.11 Wireless LANs
Jul 2009
The authors consider the Multi-Rate Retry (MRR) capability provided by current 802.11 implementations and carry out simulation-based study of its impact on performance with state-of-the-art rate...
Provided by University of Edinburgh
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White Papers
Performance Analysis of Mobile Hotspots With Heterogeneous Wireless Links
Oct 2007
Mobile hotspot enabling Internet access services in moving vehicles is an important service for ubiquitous computing. In this paper, the authors propose an analytical framework for studying the...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
A New Secure Strategy in Small-Scale IEEE 802.11 Wireless Local Area Networks With Web Authentication and Virtual Local Area Network
Mar 2011
As the main secret-key encryption techniques of the Wireless Local Area Network (WLAN) have been proven to be unsafe, wireless network security is faced with serious challenges. It is unpractical...
Provided by Beijing University of Posts and Telecommunications
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Whitepapers
Performance Comparison of 802.11n System With WLAN Channel Model
Sep 2009
As the demand of high quality service in next generation wireless communication systems, a high performance of data transmission requires an increase of spectrum efficiency and an improvement of...
Provided by Institute of Electrical & Electronic Engineers
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White Papers
STiCMAC: A MAC Protocol for Robust Space-Time Coding in Cooperative Wireless LANs
May 2011
Relay-assisted cooperative wireless communication has been shown to have significant performance gains over the legacy direct transmission scheme. Compared with single relay based cooperation...
Provided by University of Naples
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Whitepapers
Adaptive Wireless Bandwidth Allocation for Per-Station Fairness
Sep 2009
In IEEE 802.11 wireless LAN, the bandwidth cannot be fairly allocated among stations. To resolve this problem, the authors propose a novel adaptive wireless bandwidth allocation for per-station...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
An Efficient Scanning Group and Order Decision Method Using Neighbor Network Information in Wireless LAN
Sep 2009
In the IEEE 802.11 WLAN, a Mobile Station (MS) performs a handover whenever it moves out of range of one Access Point (AP). However, channel scanning which discovers the new available APs is the...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Cooperative Protocols for Random Access Networks
Jan 2009
Cooperative communications have emerged as a significant concept to improve reliability and throughput in wireless systems. On the other hand, WLANs based on random access mechanism have become...
Provided by RWSoftware
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White Papers
Performance Analysis of Distributed Cluster-Based MAC Protocol for Multiuser MIMO Wireless Networks
Mar 2011
It is known that multiuser MIMO communication can enhance the performance of wireless networks. It can substantially increase the spectral efficiency of wireless networks by utilising multiuser...
Provided by ETH Zurich
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Whitepapers
Hop-by-Hop Frame Aggregation for VoIP on Multi-Hop Wireless Networks
Apr 2008
The already severe inefficiency problem in running VoIP on the IEEE 802.11-based wireless LAN is exacerbated in multi-hop networks due to spatial interference. This paper presents a novel scheme...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Weighted Fair Uplink/Downlink Access Provisioning in IEEE 802.11e WLANs
Apr 2008
The authors present the unfairness problem between the uplink and the downlink flows in the IEEE 802.11e infrastructure Basic Service Set (BSS) when the default settings of the Enhanced...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
An Asynchronous Distributed Dynamic Channel Assignment Scheme for Dense WLANs
Apr 2008
Wireless Local Area Networks (WLANs) have changed the way many of them communicate, work, play and live. Due to its popularity, dense deployments are becoming a norm in many cities around the...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
PigWin: Meaningful Load Estimation in IEEE 802.11 Based Wireless LANs
Apr 2008
In this paper, the authors propose a novel definition of the term load, which overcomes the weaknesses of traditional metrics for measuring load. They then present PigWin, which is a load...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Supporting Service Differentiation and Maximizing System Saturation Throughput: A Contradictory in IEEE 802.11e WLAN
Apr 2008
While most existing work focuses separately on how to improve WLAN saturation throughout and how to provide differentiated service, few attention is put to study their relationship. In this paper,...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
A Dynamic IEEE 802.11e TXOP Scheme in WLANs Under Self-Similar Traffic: Performance Enhancement and Analysis
Apr 2008
Transmission Opportunity (TXOP) is a new scheme specified in the IEEE 802.11e standard which enables a station to transmit multiple frames consecutively within a burst after it gains the channel....
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Coexistence-Aware Scheduling for LTE and WLAN During Hard In-Device Interference
Jun 2012
In-device interference of concurrently active radios can cause significant performance degradation in small devices such as smart phones. To avoid interference-related conflicts under challenging...
Provided by ICST
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Whitepapers
Aggregate Interference From WLAN in the TV White Space by Using Terrain-Based Channel Model
Jun 2012
In this paper, the authors model the TV white space usage by a WLAN type secondary network. They derive a model that incorporates spatially non-uniform distributed user demand and terrain-based...
Provided by ICST
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Whitepapers
Distributed Channel Assignment Algorithm Based on Simulated Annealing for Uncoordinated OSA-Enabled WLANs
Jun 2011
A promising approach to alleviate ISM band congestion problems in highly dense WLAN scenarios consists of exploiting Opportunistic Spectrum Access (OSA) to underutilized bands under a...
Provided by ICST
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Whitepapers
Proposal of Heterogeneous Wireless Communication Network With Soft Handover in Application Layer: Feasibility Study Based on Field Trial Results
Jun 2011
This paper proposes a heterogeneous wireless communication network with soft handover in the application layer. The proposed network requires no upgrades of wireless infrastructure and mobile...
Provided by ICST
