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wireless lan
(1550 results)-
White Papers
Battery Life of Mobile Peers With UMTS and WLAN in a Kademlia-Based P2P Overlay
Aug 2009
The authors evaluate the battery life of mobile devices that act as full-fledged peer nodes in a Kademlia DHT based P2P overlay network. The motivation is to find out how long a mobile peer is...
Provided by University of Oulu
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White Papers
QoS Issues of Media Access Delay and Throughput in WLAN
Mar 2010
To analyze the performance of various MAC protocols in providing QoS to users of WLAN, the metrics used were Throughput, Data Drop, Retransmission and Medium Access Delay. During the evaluation of...
Provided by RIMT - Institute of Engineering & Technology
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White Papers
Multi-Service Load Balancing in a Heterogeneous Network
Mar 2011
In this paper, the authors investigate load balancing mechanisms in heterogeneous WiMAX/WLAN network. By taking both the service characteristics of the two networks and service requirements of two...
Provided by Norwegian University of Science and Technology
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White Papers
VHDL Implementation of Efficient Multimode Block Interleaver for WiMAX
Mar 2012
Wireless communication is one of the most vibrant research areas in the communication field today. WLAN and WiMAX are emerging standards for wireless broadband communication system. OFDM is...
Provided by NOIDA INSTITUTE OF ENGINEERING AND TECHNOLOGY
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White Papers
Improving Communication Efficiency With Adaptable Transmissions for Uncoordinated WLANs
Mar 2012
Campus and enterprise wireless networks are increasingly characterized by ubiquitous coverage and rising traffic demands. Efficiently assigning channels to Access Points (APs) in these networks...
Provided by K.S.Rangasamy College of Technology
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White Papers
On Centralized Schedulers for 802.11e WLANs Distribution Versus Grouping of Resources Allocation
Dec 2010
Wireless LAN is becoming a pervasive wireless access technology that can be found in almost any mobile device such as laptops, PDAs, portable game consoles and mobile phones. Each of these groups...
Provided by John Wiley & Sons
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White Papers
An Adaptive Solution for Wireless LAN Distributed Power Saving Modes
Mar 2009
The current trend to incorporate the Wireless LAN technology in increasingly smaller mobile devices poses new challenges, in terms of QoS and power consumption requirements, for the design of such...
Provided by Technical University of Catalonia
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White Papers
Comparision of AlGaN/GaN and AlGaAs/GaAs Based HEMT Device Under Doping Consideration
May 2011
This paper presents the behaviour and characteristics of various parameters of AlGaN/GaN based HEMT under the effect of doping. The impact of n-type doping material in carrier layer of AlGaN/GaN...
Provided by International Journal of Advances in Engineering & Technology (IJAET)
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White Papers
A Novel Design of Multiband Square Patch Antenna Embeded With Gasket Fractal Slot for WLAN & WIMAX Communication
Mar 2012
A compact multiband patch antenna embedded with gasket fractal slots is proposed in this paper. The structure consists of square patch element with modified gasket slots on both radiating edge...
Provided by International Journal of Advances in Engineering & Technology (IJAET)
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White Papers
A Compact Dual Band Planar RMSA for WLAN/WIMAX Applications
Jan 2012
The Presentation of a compact dual band planar Rectangular MicroStrip Antenna (RMSA) antenna for a WLAN (2.4GHz IEEE standards 802.11b/g)/WiMAX (2.6GHz IEEE standards802.16e) applications. The two...
Provided by International Journal of Advances in Engineering & Technology (IJAET)
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White Papers
Enhanced Bandwidth Utilization in WLAN for Multimedia Data
Jan 2012
Deployment of Wireless Local Area Networks (WLANs) is growing consistently and demanding the support of multimedia applications with acceptable Quality of Service (QoS). This is attracting the...
Provided by International Journal of Advances in Engineering & Technology (IJAET)
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White Papers
Towards an Optimal Strategy for WLAN Location Determination Systems
Jan 2012
This paper presents a general analysis for the performance of WLAN location determination systems. In particular, the authors present an analytical method for calculating the average distance...
Provided by University of Maryland
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White Papers
Propagation Modeling for Accurate Indoor WLAN RSS-Based Localization
May 2010
WLAN RSS-based localization has been a hot research topic for the last years. To obtain high accuracy in the noisy wireless channel, WLAN location determination systems usually use a calibration...
Provided by Nile University
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White Papers
Maximizing Multiuser Diversity Gains in IEEE 802.11 WLANs
Jan 2008
Opportunistic scheduling monitors the receivers' channel states and schedules packets to the receivers in relatively good channel conditions. Opportunistic scheduling can be easily implemented in...
Provided by Reed Elsevier
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White Papers
Comparative Study of CDMA and OFDM in WI-FI
Mar 2012
There have been extensive research efforts on simulating Wireless Local Area Networks. Many papers have studied the performance of IEEE 802.11 WLANs by using simulation under different channels...
Provided by International Journal of Computer Science Issues
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White Papers
Power Control Using Game Theory in a Shared Open Spectrum
Apr 2009
The main problem of the today's IEEE 802.11 WLANs is the small number of available channels. In this paper, the authors focus on a novel way of maximization of the network throughput and the...
Provided by Kingston University
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White Papers
A Planar Monopole Antenna for Dual Band Application
Mar 2012
This paper describes the design of a small dual band planar antenna to operate in the ISM (2.4-2.48 GHz) and WLAN (5-6 GHz) band. Dual band operation is achieved by choosing proper microstrip...
Provided by International Journal of Scientific & Technology Research
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White Papers
Cooperative Content Dissemination in Multi-Channel WLAN Hotspots
Nov 2007
It is common for hotspots in airports, cafes, and malls to deploy info-stations on their access points to provide local information such as flight schedule, multimedia access, sales and discount...
Provided by Reed Elsevier
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White Papers
Dual Home Agent (DHA)-Based Location Management Scheme in Integrated Cellular - WLAN Networks
Aug 2008
For seamless integration of cellular and Wireless Local Area Network (WLAN) systems, the authors introduce a Dual Home Agent (DHA)-based location management. The DHA maintains the location...
Provided by Reed Elsevier
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White Papers
Performance Enhancement of EY-NPMA Through Variable Yield
Oct 2007
Previous studies have shown that significant gains can be achieved, when the parameters of the EY-NPMA protocol are updated on the fly. When EY-NPMA adapts dynamically to the offered load,...
Provided by Aristotle University of Thessaloniki
-
White Papers
Multiband Loaded Inverted-F Antenna for WLAN/WiMAX/Wi-Fi Applications
Apr 2011
This paper presents the numerical simulations of multiband loaded inverted-F antenna for WLAN/WiMAX/Wi-Fi applications. The antenna contains high peak gain of 8.40, 8.48, 8.44 and 6.90 dBi at 2.3,...
Provided by Khulna University
-
White Papers
Mobility: A Top Priority for Building a More Productive Workforce
Apr 2012
The workforce is changing drastically, further highlighting a demand for mobile solutions to streamline productivity. Especially in the IT services industry, employees who are required to travel...
Provided by LabTech Software
-
White Papers
Contention Window Optimization: An Enhancement to IEEE 802.11 DCF to Improve Quality of Service
Dec 2011
Wireless communication technology has gained widespread acceptance in recent years. Wireless Local Area Networks (WLANs) are becoming more and more popular and widely used, since they provide high...
Provided by The Society of Digital Information and Wireless Communications (SDIWC)
-
White Papers
Received Signal Strength Based Indoor Positioning Using Compressive Sensing
Oct 2011
The recent growing interest for indoor Location-Based Services (LBSs) has created a need for more accurate and real-time indoor positioning solutions. The sparse nature of location finding makes...
Provided by Institute of Electrical and Electronics Engineers
-
White Papers
Distributed Optimal TXOP Control for Throughput Requirements in IEEE 802.11e Wireless LAN
Dec 2011
This paper designs a distributed Transmission OPportunity (TXOP) adaptation algorithm for IEEE802.11e Enhanced Distributed Channel Access (EDCA). Each node measures its throughput in a window and...
Provided by University of Toronto
-
White Papers
Real-Time Communication in IEEE 802.11 Wireless Mesh Networks: A Prospective Study
Jan 2011
The purpose of this paper is to present an on-going prospective study about IEEE 802.11 Wireless Mesh Networks (WMNs), focusing on available techniques to support real-time communication. This...
Provided by University of Porto
-
White Papers
Performance Analysis of WLAN Standards for Video Conferencing Applications
Dec 2011
A number of traffic characterization studies have been carried out on wireless LANs, which indicate that the wireless settings pose major challenges, especially for high bandwidth and delay...
Provided by Academy & Industry Research Collaboration Center
-
White Papers
Analytic Study of Synchronization Errors in OFDM Systems Applied on WLAN Transceiver
Aug 2011
In this paper, a new energetic approach was developed to study the impact of synchronization errors on OFDM transmission systems. Indeed, this approach can be applied in wireless communication...
Provided by Academy & Industry Research Collaboration Center
-
White Papers
PIE in the Sky: Online Passive Interference Estimation for Enterprise WLANs
Mar 2011
Trends in enterprise WLAN usage and deployment point to the need for tools that can capture interference in real time. A tool for interference estimation can not only enable WLAN managers to...
Provided by University of Wisconsin
-
White Papers
NACS: Non-Overlapping AP's Caching Scheme to Reduce Handoff in 802.11 Wireless LAN
Dec 2011
With the escalation of the IEEE 802.11 based wireless networks, Voice over IP and analogous applications are also used over wireless net-works. Recently, the wireless LAN systems are spaciously...
Provided by Ajou University
-
White Papers
A New OFDM Standard for High Rate Wireless LAN in the 5 GHz Band
Dec 2011
An overview is given of the new OFDM based wireless LAN standard which is being developed by IEEE 802.11, ETSI and MMAC. Signal processing issues are described and some simulations are shown to...
Provided by Sipnas college of Engineering & Technology
-
White Papers
A Dynamic Extensible Authentication Protocol for Device Authentication in Transport Layer
Mar 2012
Wireless Local Area Networks (Wireless LANs, or WLANs) are changing the landscape of computer networking. Wireless communications are inherently more open to attack than wired data transfer, as...
Provided by International Journal of Computer Science and Information Technologies
-
White Papers
Performance Evaluation of UMTS-WLAN Interworking
Mar 2011
The main methods used to implement WLAN-3G inter working are: the mobile IP methods, the emulator method, and the gateway method. Each one of these methods enjoys some pros and suffers from some...
Provided by International Journal of Computer Science and Information Technologies
-
White Papers
A Control-Theoretic Approach to Distributed Optimal Configuration of 802.11 WLANs
Jun 2011
The optimal configuration of the contention parameters of a WLAN depends on the network conditions in terms of number of stations and the traffic they generate. Following this observation, a...
Provided by Institute of Electrical and Electronics Engineers
-
White Papers
A Game Theoretic Approach to Selfishness in 802.11e WLANs
Apr 2011
The 802.11e standard opens the configuration of several MAC parameters, which makes WLANs vulnerable to users that selfishly configure these parameters to gain more throughput. In this paper, the...
Provided by Universidad Carlos III de Madrid
-
White Papers
Optimal Configuration of 802.11e EDCA Under Voice Traffic
Aug 2007
In this paper, the authors first present a model to analyze the average and standard deviation of the delay in a 802.11e EDCA WLAN under voice traffic. Next, based on this model, they compute the...
Provided by Universidad Carlos III de Madrid
-
White Papers
Efficient Load-Aware Channel Allocation in Wireless Access Networks
Mar 2011
Dense deployments of hybrid WLANs result in high levels of interference and low end-user throughput. Many frequency allocation mechanisms for WLANs have been proposed by a large body of previous...
Provided by Hindawi Publishing
-
White Papers
A Packet Scheduling Algorithm for Optimizing Downlink Throughput in Wireless LANs With the One-Sender-Multiple-Receiver Technique
Mar 2010
In this paper, the authors study the packet scheduling problem in wireless LANs with the One-Sender-Multiple-Receiver (OSMR) transmission technique. OSMR allows the Access Point (AP) to send...
Provided by Institute of Electrical and Electronics Engineers
-
White Papers
Nuzzer: A Large-Scale Device-Free Passive Localization System for Wireless Environments
May 2011
The widespread usage of WLANs and mobile devices has fostered the interest in localization systems for wireless environments. The majority of research in the context of wireless-based localization...
Provided by Institute of Electrical and Electronics Engineers
-
White Papers
Analysis of PS Protocols Using Markov and Cluster Model in 802.11 WLANS
Apr 2012
In recent years, a series of Power Saving (PS) protocols has been proposed in the family of 802.11 standards to save energy for mobile devices. To evaluate their performance, many works have been...
Provided by ESTIJ
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Case Studies
Secure, Reliable, Cost-Effective Wireless Networking for Global Firm With Cooperative Control Wireless LAN From Aerohive
Feb 2009
Flow International Corporation is the world's leading developer and manufacturer of Ultrahigh-Pressure (UHP) waterjet technology for cutting and cleaning with nearly 60 percent market share. The...
Provided by Aerohive Networks
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Case Studies
Secure and Affordable Wireless Networking for Headquarters and Branch Offices With Cooperative Control Wireless LAN Equipment From Aerohive
Jan 2008
First Industrial Realty Trust, Inc. The company has 520 employees in more than 40 offices and is in the business of leasing, developing, redeveloping, buying, selling, and managing industrial...
Provided by Aerohive Networks
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Case Studies
Manageable, Reliable, and Flexible Wireless Networking for Educational Institution Uses Cooperative Control Wireless LAN From Aerohive
Mar 2009
The Madeira school, founded in 1906, is an all girls Boarding and day school, grades 9 - 12, located 12 miles outside Washington, D.C. in McLean, Virginia. To provide access to these, as well as...
Provided by Aerohive Networks
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Case Studies
European Primary School Chooses Aerohive's Reliable, Manageable, Scalable and Economical Controller-Less Wireless LAN Architecture
May 2009
Churchtown School, located in southport just north of liverpool, is one of the largest primary schools in The UK with nearly 900 students, ages 3 to 11, and 100 Faculty and staff. Each class...
Provided by Aerohive Networks
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Case Studies
Secure, Reliable Wireless Networking for Manufacturing and Warehousing Facility With Cooperative Control Wireless LAN From Aerohive
Jun 2009
Columbus Vegetable Oils, headquartered in Des Plaines, Illinois, a suburb of Chicago, processes and packages over 100 quality items with combined shipments of over one million pounds per day. With...
Provided by Aerohive Networks
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Case Studies
Indoor/outdoor WLAN Connects Students and Teachers to Each Other? and the World
May 2008
With a county population of 6,000, Goliad ISD is a pre-k through 12 school district serving 1,325 students. Goliad, the only town in the county, has a population of 2,000. Linking the computers...
Provided by Motorola
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White Papers
New Trends and Solutions in Mobile Business
Nov 2007
Nowadays the business medium requires anytime and anywhere connectivity. In an increasingly competitive business environment, more and more organizations need fast responses and instant results....
Provided by Academy of Economic Studies
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White Papers
Model-Based Fault Diagnosis for IEEE 802.11 Wireless LANs
Jun 2009
The increasingly deployed IEEE 802.11 Wireless LANs (WLANs) challenge traditional network management systems because of the shared open medium and the varying channel conditions. There needs to be...
Provided by University of Massachusetts Lowell
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White Papers
Wireless Information Systems in Support of Green iSchools
Jan 2009
Becoming a green iSchool requires information infrastructure development. Wireless information systems are important for information infrastructure development. This paper assesses how wireless...
Provided by University of Pittsburgh
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White Papers
Handover Strategy for Mobile Wireless LAN
Oct 2009
Wireless Local Area Network (WLAN) is becoming a new era of wireless networking technology to adapt the user with strong desire for new technology. The main issue is to integrate WLAN with WAN,...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
A Geographic Routing Protocol for Wireless Mesh Networks
Jun 2009
Wireless mesh networks (WMNs) basically consist of a set of mesh routers, which communicate with each other via wireless links and form a mesh topology [1-5]. The basic functionalities of these...
Provided by University of Sydney
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White Papers
Strategic Planning and Design for Application-Driven Wireless Local Area Networks
Apr 2009
The importance and increasing adoption of wireless local area networks is undeniable. The flexibility, mobility, increased productivity and cost savings when compared to the cost of a wired...
Provided by Azure Wireless
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White Papers
Virtual Private LAN Services: Extending Ethernet Over the WAN
Mar 2008
The market for data networking services is constantly evolving. Demand for bandwidth grows exponentially as end users continue to look for more sophisticated features and services. In midst of...
Provided by Tellabs
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White Papers
Cisco Unified Wireless Network Solution Positioning for the New PCI DSS Wireless Guideline
Aug 2009
This paper directly addresses the recommendations listed in the "Information Supplement: PCI DSS Wireless Guideline." This paper addresses these guidelines in relation to the Cisco Unified...
Provided by Cisco Systems
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White Papers
Wireless Security Online, On-Demand: Cost-Effective, Customizable, Effortless, and Proactive Management of Your Wireless Threat Exposure
Feb 2009
This paper introduces a novel way for enabling on-demand wireless security that is affordable, effortless, and customizable. In this new architecture, wireless security is delivered over the...
Provided by AirTight Networks
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White Papers
Scheduling in IEEE 802.16e Mobile WiMAX Networks: Key Issues and a Survey
Feb 2009
Interest in Broadband Wireless Access (BWA) has been growing due to increased user mobility and the need for data access at all times. IEEE 802.16e based WiMAX networks promise the best available...
Provided by Institute of Electrical and Electronics Engineers
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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
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
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
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
Aggregation With Fragment Retransmission for Very High-Speed WLANs
Apr 2009
In upcoming very high-speed Wireless LANs (WLANs), the physical (PHY) layer rate may reach 600 Mbps. To achieve high efficiency at the medium access control (MAC) layer, it identified fundamental...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Analyzing the Energy Consumption of Security Algorithms for Wireless LANs
Oct 2009
Security in wireless networks is of paramount importance. Due to the broadcast nature of the wireless radio signals, wireless networks are implicitly vulnerable to several network attacks. Anyone...
Provided by International Journal of Computer Theory and Engineering (IJCTE)
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White Papers
Performance Analysis of Wireless Local Area Networks
Jun 2009
In an infrastructure based wireless network, Access Point (AP) is the central authority which controls all the registered nodes and relaying traffic in the network. Even though all traffic is...
Provided by International Journal of Computer Theory and Engineering (IJCTE)
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White Papers
Enterprise Wireless LAN Distributed Antenna System Delivers High Performance Voice and Data
Sep 2008
If wireless LAN services are just a nice to have add on to support a few clients, then a Distributed Antenna System is not necessary. When wireless services are core to the operation of an...
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
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
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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Whitepapers
Managing Your Wi-Fi Network Through Thick and Thin: Keys to Successfully Managing Any Wireless LAN
Oct 2008
Ones ability to effectively manage wireless network depends not on whether one uses 'Thick' or 'Thin' access points, but on the capabilities of network management solution. Selection of hardware...
Provided by Aruba Networks
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Whitepapers
Troubleshooting WLAN Issues With AirWave Wireless Management Suite
Aug 2008
In a typical IT organization, it is the Help Desk's job to take incoming user support calls and determine whether the problem is an individual client/device issue or a broader network issue that...
Provided by Aruba Networks
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White Papers
BCM4325 Bluetooth and WLAN Coexistence
Aug 2008
The growth of IEEE 802.11 wireless local area networks and Bluetooth wireless personal area networks in the 2.4-GHz band has resulted in the need to colocate the circuitry of each technology on a...
Provided by Broadcom
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White Papers
Wireless Enterprise Branch Office Solution: Networks for Business Mobility
May 2009
Motorola's wireless enterprise branch office solution allows one to intelligently network any number of branch offices - quickly, easily and cost-effectively. Future-proof proven solutions offer...
Provided by Motorola
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White Papers
802.11n the Good, the Bad, and the Ugly: Will You Be Ready?
Feb 2009
802.11n is poised to become the de facto wireless LAN technology in the near future. Four key factors that underpin successful 802.11n execution are: a sound migration strategy, RF planning,...
Provided by AirTight Networks
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White Papers
VAP VLAN Application
Jul 2009
With the popularity of the application of IEEE802.11 series, the security problems for the mobile users of Wireless LAN Access is increasing more and more, day by day. Owing to the characteristics...
Provided by Formosa Wireless Systems
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White Papers
802.11n: Look Before You Leap - Key Considerations for Moving to 802.11n
Sep 2008
With the introduction of 802.11n, the field of Wireless Local Area Networks (WLANs) is undergoing a paradigm shift as phenomenal as the beginning of WLANs themselves. The extraordinary data rates...
Provided by Motorola
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White Papers
Cloud + Wireless LAN = Easier + Affordable
Aug 2009
This white paper discusses how a cloud-based architecture makes wireless LAN easier and more affordable for higher education institutions vs the traditional wireless LAN architecture. Cloud-based...
Provided by Meraki
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Webcasts
Wireless LAN Support Draining Your IT Budget?: Maximizing Wireless Availability While Minimizing Operational Cost
Mar 2009
Wireless Local Area Networks (WLAN) are well on their way to becoming the default and even primary access within enterprises across all industries. With the capital expense involved in planning...
Provided by Motorola
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Webcasts
WLAN for Education: Tips for Making It Work on a Lean Budget
Jan 2009
Supporting wireless users in education has quickly evolved from annoying to near impossible. Instead of just supporting wireless access for laptops, IT must now support a litany of mobile student...
Provided by Motorola
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Webcasts
Wireless LANs for Education: A K-12 Perspective
Jan 2009
Education is all about learning from other's experiences. The attendee of this webcast will learn from Farmington Municipal Schools, New Mexico and Miami Dade Public Schools, Florida, what they...
Provided by Meru Networks
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Webcasts
Wireless LAN Edge: Is 802.11n the End of Ethernet?
Nov 2007
With WiFi Alliance certifying 802.11n draft 2.0 that is promising to deliver Ethernet equivalent speeds on WLAN, enterprises are beginning to look at wireless as an alternate to wired networks at...
Provided by Meru Networks
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Case Studies
Wireless LAN for Houston Airport System
May 2009
The Houston Airport System came to Blackbriar Technologies with a need to build a secure, manageable wireless LAN infrastructure in their Administration building as well as in the "Disaster...
Provided by Blackbriar Technologies
-
White Papers
Performance Enhancement of EY-NPMA Through Variable Yield
Oct 2007
Previous studies have shown that significant gains can be achieved, when the parameters of the EY-NPMA protocol are updated on the fly. When EY-NPMA adapts dynamically to the offered load,...
Provided by Aristotle University of Thessaloniki
-
White Papers
Multiband Loaded Inverted-F Antenna for WLAN/WiMAX/Wi-Fi Applications
Apr 2011
This paper presents the numerical simulations of multiband loaded inverted-F antenna for WLAN/WiMAX/Wi-Fi applications. The antenna contains high peak gain of 8.40, 8.48, 8.44 and 6.90 dBi at 2.3,...
Provided by Khulna University
-
White Papers
Mobility: A Top Priority for Building a More Productive Workforce
Apr 2012
The workforce is changing drastically, further highlighting a demand for mobile solutions to streamline productivity. Especially in the IT services industry, employees who are required to travel...
Provided by LabTech Software
-
White Papers
Contention Window Optimization: An Enhancement to IEEE 802.11 DCF to Improve Quality of Service
Dec 2011
Wireless communication technology has gained widespread acceptance in recent years. Wireless Local Area Networks (WLANs) are becoming more and more popular and widely used, since they provide high...
Provided by The Society of Digital Information and Wireless Communications (SDIWC)
-
White Papers
Received Signal Strength Based Indoor Positioning Using Compressive Sensing
Oct 2011
The recent growing interest for indoor Location-Based Services (LBSs) has created a need for more accurate and real-time indoor positioning solutions. The sparse nature of location finding makes...
Provided by Institute of Electrical and Electronics Engineers
-
White Papers
Distributed Optimal TXOP Control for Throughput Requirements in IEEE 802.11e Wireless LAN
Dec 2011
This paper designs a distributed Transmission OPportunity (TXOP) adaptation algorithm for IEEE802.11e Enhanced Distributed Channel Access (EDCA). Each node measures its throughput in a window and...
Provided by University of Toronto
-
White Papers
Real-Time Communication in IEEE 802.11 Wireless Mesh Networks: A Prospective Study
Jan 2011
The purpose of this paper is to present an on-going prospective study about IEEE 802.11 Wireless Mesh Networks (WMNs), focusing on available techniques to support real-time communication. This...
Provided by University of Porto
-
White Papers
Performance Analysis of WLAN Standards for Video Conferencing Applications
Dec 2011
A number of traffic characterization studies have been carried out on wireless LANs, which indicate that the wireless settings pose major challenges, especially for high bandwidth and delay...
Provided by Academy & Industry Research Collaboration Center
-
White Papers
Analytic Study of Synchronization Errors in OFDM Systems Applied on WLAN Transceiver
Aug 2011
In this paper, a new energetic approach was developed to study the impact of synchronization errors on OFDM transmission systems. Indeed, this approach can be applied in wireless communication...
Provided by Academy & Industry Research Collaboration Center
-
White Papers
PIE in the Sky: Online Passive Interference Estimation for Enterprise WLANs
Mar 2011
Trends in enterprise WLAN usage and deployment point to the need for tools that can capture interference in real time. A tool for interference estimation can not only enable WLAN managers to...
Provided by University of Wisconsin
-
White Papers
NACS: Non-Overlapping AP's Caching Scheme to Reduce Handoff in 802.11 Wireless LAN
Dec 2011
With the escalation of the IEEE 802.11 based wireless networks, Voice over IP and analogous applications are also used over wireless net-works. Recently, the wireless LAN systems are spaciously...
Provided by Ajou University
-
White Papers
A New OFDM Standard for High Rate Wireless LAN in the 5 GHz Band
Dec 2011
An overview is given of the new OFDM based wireless LAN standard which is being developed by IEEE 802.11, ETSI and MMAC. Signal processing issues are described and some simulations are shown to...
Provided by Sipnas college of Engineering & Technology
-
White Papers
A Dynamic Extensible Authentication Protocol for Device Authentication in Transport Layer
Mar 2012
Wireless Local Area Networks (Wireless LANs, or WLANs) are changing the landscape of computer networking. Wireless communications are inherently more open to attack than wired data transfer, as...
Provided by International Journal of Computer Science and Information Technologies
-
White Papers
Performance Evaluation of UMTS-WLAN Interworking
Mar 2011
The main methods used to implement WLAN-3G inter working are: the mobile IP methods, the emulator method, and the gateway method. Each one of these methods enjoys some pros and suffers from some...
Provided by International Journal of Computer Science and Information Technologies
-
White Papers
A Control-Theoretic Approach to Distributed Optimal Configuration of 802.11 WLANs
Jun 2011
The optimal configuration of the contention parameters of a WLAN depends on the network conditions in terms of number of stations and the traffic they generate. Following this observation, a...
Provided by Institute of Electrical and Electronics Engineers
-
White Papers
A Game Theoretic Approach to Selfishness in 802.11e WLANs
Apr 2011
The 802.11e standard opens the configuration of several MAC parameters, which makes WLANs vulnerable to users that selfishly configure these parameters to gain more throughput. In this paper, the...
Provided by Universidad Carlos III de Madrid
-
White Papers
Optimal Configuration of 802.11e EDCA Under Voice Traffic
Aug 2007
In this paper, the authors first present a model to analyze the average and standard deviation of the delay in a 802.11e EDCA WLAN under voice traffic. Next, based on this model, they compute the...
Provided by Universidad Carlos III de Madrid
-
White Papers
Efficient Load-Aware Channel Allocation in Wireless Access Networks
Mar 2011
Dense deployments of hybrid WLANs result in high levels of interference and low end-user throughput. Many frequency allocation mechanisms for WLANs have been proposed by a large body of previous...
Provided by Hindawi Publishing
-
White Papers
A Packet Scheduling Algorithm for Optimizing Downlink Throughput in Wireless LANs With the One-Sender-Multiple-Receiver Technique
Mar 2010
In this paper, the authors study the packet scheduling problem in wireless LANs with the One-Sender-Multiple-Receiver (OSMR) transmission technique. OSMR allows the Access Point (AP) to send...
Provided by Institute of Electrical and Electronics Engineers
-
White Papers
Nuzzer: A Large-Scale Device-Free Passive Localization System for Wireless Environments
May 2011
The widespread usage of WLANs and mobile devices has fostered the interest in localization systems for wireless environments. The majority of research in the context of wireless-based localization...
Provided by Institute of Electrical and Electronics Engineers
-
White Papers
Analysis of PS Protocols Using Markov and Cluster Model in 802.11 WLANS
Apr 2012
In recent years, a series of Power Saving (PS) protocols has been proposed in the family of 802.11 standards to save energy for mobile devices. To evaluate their performance, many works have been...
Provided by ESTIJ
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White Papers
State Dependent Attempt Rate Modeling of Single Cell IEEE 802.11 WLANs With Homogeneous Nodes and Poisson Arrivals
Jan 2012
Analytical models of IEEE 802.11-based WLANs are invariably based on approximations, such as the well-known mean-field approximations proposed by Bianchi for saturated nodes. In this paper, the...
Provided by Indian Institute of Science
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White Papers
Performance Analysis of IEEE 802.11 WLANs With Saturated and Unsaturated Sources
Oct 2011
The model is used to investigate the interaction between these two types of sources, which is particularly useful for systems seeking to achieve load-independent "Fair" service differentiation....
Provided by Institute of Electrical & Electronic Engineers
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White Papers
Service Differentiation Without Prioritization in IEEE 802.11 WLANs
Jul 2011
Wireless LANs carry a mixture of traffic, with different delay and throughput requirements. The usual way to provide low-delay services is to give priority to such traffic. However this creates an...
Provided by Swinburne University of Technology
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White Papers
Packet Size Variability Affects Collisions and Energy Efficiency in WLANs
Dec 2009
Wireless Local Area Networks (WLANs) support a wide range of applications, with various packet sizes. This diversity is set to increase in 802.11e WLANs which effectively allow very large packets...
Provided by Swinburne University of Technology
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White Papers
Vertical Fast Handoff in Integrated WLAN and UMTS Networks
Jul 2011
Mobility management and on top of that, vertical handoffs remains as one of the most challenging obstacles in 4G evolution. In this paper, the authors present Vertical Fast Handoff protocol as a...
Provided by IARIA
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White Papers
WLAN IEEE 802.11a/b/g/n Indoor Coverage and Interference Performance Study
Sep 2011
An adequate wireless network plan is needed to replace the traditional wired LANs. A full coverage WLAN offers the flexibility to relocate people and equipment or to reconfigure and add more...
Provided by IARIA
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White Papers
Robust Header Compression With Load Balance and Dynamic Bandwidth Aggregation Capabilities in WLAN
Dec 2010
The vigorous development of WLAN in recent years has introduced various kinds of WLAN techniques and research subjects been brought up. The development of WLAN in recent years has deeply involved...
Provided by National Taiwan University of Science and Technology
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White Papers
Performance Analysis of Pilot Aided OFDMA Systems for Mesh Networks
Aug 2011
This paper presents a systematic approach for analyzing the bit error probability of pilot aided Orthogonal Frequency-Division Multiple Access (OFDMA) systems. A comparative analysis with the...
Provided by IARIA
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White Papers
Joint Optimal Spectrum Sensing Time and Power Allocation in Ultra Wideband Cognitive Radio Networks
Apr 2012
Ultra WideBand (UWB) system is overlapped with various wireless systems, such as WLAN, WiMax and UMTS, which limits the use of UWB. Cognitive Radio (CR) enables UWB systems to efficiently use the...
Provided by IARIA
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White Papers
Improving Fairness in Wireless Mesh Networks
Feb 2012
Wireless Mesh Networks (WMNs) are networks that aim to establish hybrid wireless communications in areas with little or no telecommunication infrastructure available. The main motivation of these...
Provided by IARIA
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White Papers
Estimation of Collision Multiplicities in IEEE 802.11-Based WLANs
Feb 2012
Estimating the Collision Multiplicity (CM), i.e. the number of users involved in a collision, is a key task in MultiPacket Reception (MPR) approaches and in Collision Resolution (CR) techniques. A...
Provided by IARIA
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White Papers
A New Path Failure Detection Method for Multi-Homed Transport Layer Protocol
Jul 2011
Through its support for multi-homing, the Stream Control Transmission Protocol (SCTP) is a suitable solution to implement and manage user's mobility by abstracting multiple physical paths into a...
Provided by IARIA
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White Papers
Exact Error Probabilities Analysis of Arbitrary 2-D Modulation-OFDM Systems With I/Q Imbalances in Frequency-Flat Rayleigh Fading Channel
Jul 2011
In-phase and Quadrature (I/Q) amplitude and phase imbalances are inevitably caused by signal processing in the analog components such as I/Q mixers, phase shifters, filters, and analog/digital...
Provided by IARIA
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White Papers
Game Theory Based Dynamic RRM for Reconfigurable WiMAX/WLAN System
Jul 2011
This paper proposes, analyzes and evaluates a novel user-oriented Radio Resource Management (RRM) strategies for coexisting WiMAX/WLAN reconfigurable system. The proposed strategies are based on...
Provided by IARIA
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White Papers
Performance Comparison of Video Traffic Over WLAN IEEE 802.11e and IEEE 802.11n
Jul 2011
This paper reviews the fast deployment of Wireless Local Area Networks (WLANs) and the ability of WLAN to support real time services. Stringent Quality of Service (QoS) and high throughput...
Provided by IARIA
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White Papers
Effects of Hidden Terminals and their Alleviation in Multi Rate Ad Hoc Networks
May 2012
In multi rate ad hoc networks the hidden terminal problem is unique and there is a limited understanding of its effect on network performance. In this paper, the authors studied the effects of...
Provided by Universal Association of Computer and Electronics Engineers
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White Papers
Seamless Handover Between CDMA2000 and 802.11 WLAN Using MSCTP
Apr 2012
The invention of mobile devices such as laptops, hand-held computers, and cellular phones has changed the whole Internet world. The main feature of mobile devices is that they can access the...
Provided by Universal Association of Computer and Electronics Engineers
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White Papers
Opportunistic Medical Monitoring Using Bluetooth P2P Networks
Feb 2008
Remote medical monitoring using body sensors and wireless communications has been gaining attention recently because of the potential savings in patient care and the equally impressive...
Provided by University of California
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Whitepapers
Experimental Study of Link and Transport Protocols in Interference-Prone Wireless LAN Environments
Jan 2012
As wireless networks are deployed widely and user expectations grow, it is important to study the trade-offs among good put, latency and loss rates that exist in link and transport protocols....
Provided by IBM
