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wi-fi (802.11)
(2382 results)-
White Papers
Analysis of Wireless Network Security Protocols
Dec 2007
Wireless networks have become extremely widespread. However, providing security for these networks has proven to be a challenge due to the problems inherent with the way information is...
Provided by George Mason University
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White Papers
Implementing Smart Grid Communications Managing Mountains of Data Opens Up New Challenges for Electric Utilities
Aug 2009
Electric utilities continue to be among the largest users of privately owned and operated Wide-Area Networks (WANs) for communications. These networks include a hybrid mix of technologies...
Provided by General Electric Company
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White Papers
An Experimental Study on Wi-Fi Ad-Hoc Mode for Mobile Device-to-Device Video Delivery
Mar 2009
The demand for video content is continuously increasing as video sharing on the Internet is becoming enormously popular recently. This demand, with its high bandwidth requirements, has a...
Provided by University of California
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White Papers
Covenant: An Architecture for Cooperative Scheduling in 802.11 Wireless Networks
Oct 2009
Wireless networks based on 802.11a/b/g protocols have gained wide-spread acceptance in both enterprise as well as home networks. However, these devices lack native support for many advanced...
Provided by Purdue University
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White Papers
Wireless Sensor Network Radio Power Management and Simulation Models
Feb 2010
Wireless Sensor Networks (WSNs) create a new frontier in collecting and processing data from remote locations. The IEEE 802.15.4 Wireless Personal Area Network-Low Rate (WPAN-LR) WSNs rely on...
Provided by Virginia Polytechnic Institute and State University
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White Papers
Experimental Analysis of Multi Interface Mobility Management with SIP and MIP
Jan 2010
The authors provide an experimental analysis of MIMM (Multi-Interface Mobility Management) demonstrated in a heterogeneous network involving 802. 1 lb and CDMA access technologies. They have...
Provided by Columbia University
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White Papers
Providing Mobile Users' Anonymity in Hybrid Network
Jul 2010
The authors present a novel hybrid communication protocol that guarantees mobile users' k-anonymity against a wide-range of adversaries by exploiting the capability of handheld devices to connect...
Provided by George Mason University
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White Papers
EDGE, HSPA and LTE BROADBAND INNOVATION
Sep 2008
Through constant innovation, Universal Mobile Telecommunications System (UMTS) with High Speed Packet Access (HSPA) technology and its evolution to beyond Third Generation (3G) has established...
Provided by Rysavy Research
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White Papers
Improving Wireless Privacy With an Identifier-Free Link Layer Protocol
Jul 2008
This paper present the designs and evaluations of an 802.11-like wireless link layer protocol that obfuscates all transmitted bits to increase privacy. This includes explicit identifiers such as...
Provided by Association for Computing Machinery
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White Papers
Characterizing the Exit Process of a Non-Saturated IEEE 802.11 Wireless Network
May 2009
In this paper, the authors consider a non-saturated IEEE 802.11 based wireless network. They use a three-way fixed point to model the node behavior with Bernoulli packet arrivals and determine...
Provided by Association for Computing Machinery
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White Papers
iJam: Jamming Oneself for Secure Wireless Communication
Jan 2010
This paper presents iJam, a PHY-layer protocol for OFDM-based wireless systems. iJam ensures that an eavesdropper cannot successfully demodulate a wireless signal not intended for it. To achieve...
Provided by MIT Computer Science and Artificial Intelligence Laboratory
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White Papers
A Secure Framework for Wireless Sensor Networks
Dec 2007
A large disadvantage to sensor networks in factory environments is the cost of running wire, which ranges from $40 to $2000 per foot. The economical advantages of wireless sensor networks is...
Provided by General Electric
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White Papers
Characterizing Interference in 802.11-Based Wireless Mesh Networks
Jan 2010
In a multihop wireless mesh network, interference among links has a significant impact on the link capacity. Thus, characterizing the interference is critical in understanding and improving the...
Provided by Stony Brook University
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White Papers
Optimizing 802.11 Wireless Mesh Networks Based on Physical Carrier Sensing
Apr 2008
Multi-hop ad hoc networks suffer from the "Hidden" and "Exposed" node problems which diminish aggregate network throughput. While there are various approaches to mitigating these problems, in this...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
IPTV Home Networking Via 802.11 Wireless Mesh Networks: An Implementation Experience
Oct 2009
Wireless multimedia home servers are the next generation of home entertainment systems. From a single broadband connection entering home, multimedia data is transmitted to TV and other peripherals...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
MAP: A Scalable Monitoring System for Dependable 802.11 Wireless Networks
Aug 2008
As individuals and enterprises increasingly depend on 802.11 wireless LANs for mission-critical applications, in particular time-sensitive applications such as voice and video, the need to detect...
Provided by University of Massachusetts
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White Papers
A Prototyping Environment for Wireless Multihop Networks
Sep 2007
Relative to the impressive number of proposals addressing the multitude of challenges raised by IEEE 802.11-based wireless net-works, few have known real implementation. In wireless networks, due...
Provided by University of California
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White Papers
EPEW: An Extended Prototyping Environment for Wireless Mesh Networks
Sep 2008
This paper introduces EPEW, an environment for rapid prototyping of communication protocols over IEEE 802.11 mesh networks. EPEW provides a software environment that makes prototyping as quick,...
Provided by University of California
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White Papers
Exploring 700MHz WiFi-Based Wireless Mesh Networking
May 2009
This paper describes the deployment and evaluation of a 700MHz WiFi-based Wireless Mesh Network (WMN) testbed. To the knowledge, this is the world's first WiFi-based testbed using the...
Provided by Association for Computing Machinery
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White Papers
ARBOR: Hang Together Rather Than Hang Separately in 802.11 WiFi Networks
Dec 2009
With 802.11 WiFi networks becoming popular in homes, it is common for an end-user to have access to multiple WiFi Access Points (APs) from residents next door. In general, wireless networks have...
Provided by University of Colorado at Boulder
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White Papers
A WiFi Measurement in 802.11g Networks
Feb 2010
The hidden terminal problem is closely related to the Transmission Range (TX Range), Carrier Sensing Range (CS Range) and InterFerence Range (IF Range) of stations in wireless local area networks...
Provided by Mitsubishi Electric Research Laboratories
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White Papers
Wireless Telemedicine Services Over Integrated IEEE 802.11/WLAN and IEEE 802.16/WiMAX Networks
Feb 2010
Wireless telemedicine, also referred to as mobile health, which capitalizes on advances of wireless technologies to deliver health care and exchange medical knowledge anywhere, and any time,...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
WiMap: Fast Handover for 802.11 Mobile Devices
Aug 2008
Low latency handover is desired to support real time applications, such as VoIP. This paper introduces WiMap, a new handover scheme that uses past information of handovers. Through the analysis...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
MDG: Measurement-Driven Guidelines for 802.11 WLAN Design
Sep 2007
Dense deployments of WLANs suffer from increased interference and as a result, reduced capacity. There are three main functions used to improve the overall network capacity: intelligent frequency...
Provided by Association for Computing Machinery
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White Papers
802.11a or HiperLAN2: Which Technology Will Emerge as the 5 GHz WLAN Standard?
Jan 2011
Wireless networks are becoming increasingly common in homes and businesses alike. Buyers have realized the convenience that cordless networks offer. Prices have plummeted recently opening up the...
Provided by University of Colorado at Boulder
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White Papers
Link-Layer Protection in 802.11i WLANs With Dummy Authentication
Mar 2009
The current 802.11i standard can provide data confidentiality, integrity and mutual authentication in enterprise Wireless Local Area Networks (WLANs). However, secure communication can only be...
Provided by Association for Computing Machinery
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White Papers
IEEE 802.11s Wireless Mesh Networks for Last-Mile Internet Access: An Open-Source Real-World Indoor Testbed Implementation
Feb 2010
Due to their easy-to-deploy and self-healing features, WMNs (Wireless Mesh Networks) are emerging as a new promising technology with a rich set of applications. While the standardization of this...
Provided by Auburn University
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White Papers
Softspeak: Making VoIP Play Fair in Existing 802.11 Deployments
Jan 2011
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, San Diego
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White Papers
D-Scan: Enabling Fast and Smooth Handoffs in AP-Dense 802.11 Wireless Networks
May 2009
802.11 wireless networks have gained ever greater popularity nowadays. Apart from static wireless connections, people begin to expect more user-friendly features from this kind of networks, such...
Provided by Institute of Electrical and Electronics Engineers
-
White Papers
Many-to-One Throughput Capacity of IEEE 802.11 Multihop Wireless Networks
Feb 2009
This paper investigates the many-to-one throughput capacity (And by symmetry, one-to-many throughput capacity) of IEEE 802.11 multihop networks, in which many sources send data to a sink. An...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Real-Time Software Implementation of an IEEE 802.11a Baseband Receiver on Intel Multicore
Jul 2010
This paper presents a software-only implementation of an IEEE 802.11a (WiFi) receiver optimized for Intel multicore platforms. The receiver is about 50 times faster than a straightforward C...
Provided by Carnegie Mellon University
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White Papers
VillageNet: A Low-Cost, 802.11-Based Mesh Network for Rural Regions
Jan 2011
VillageNet is a wireless mesh network that aims to provide low-cost broadband Internet access for rural regions. The cost of building the network is kept low by using off-the-shelf IEEE 802.11...
Provided by University of Nebraska - Lincoln
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White Papers
PEGASUS: 802.11 Connectivity at High Speed
Sep 2007
Measurements and ongoing research have shown that WLAN connection for moving vehicles is feasible. However none of the previous works suggests a solution addressing a complete array of the...
Provided by University of Maryland
-
White Papers
Channel Assignment in an IEEE 802.11 WLAN Based on Signal-To-Interference Ratio
Dec 2007
This paper proposes a channel-assignment algorithm at the Access Points (APs) of a Wireless Local Area Network (WLAN) in order to maximize Signal-to-Interference Ratio (SIR) at the user level. The...
Provided by University of North Texas
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White Papers
Softspeak: Making VoIP Play Well in Existing 802.11 Deployments High Speed
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, San Diego
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White Papers
Measuring Queue Capacities of IEEE 802.11 Wireless Access Points
Jun 2007
While queue capacities have a direct impact on loss and latency during congestion, and wireless networks continue to spread in university, corporate and home networks, little is publicly known...
Provided by Worcester Polytechnic Institute
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White Papers
Channel Management for 802.11n in Wireless Deployments
Mar 2010
IEEE 802.11n is a newly emerging wireless standard which, relative to former legacy 802.11 protocols, such as 802.11a/b/g, has a number of new mechanisms that enable multifold increases in...
Provided by University of California, Santa Barbara
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White Papers
Wireless Reliability: Rethinking 802.11 Packet Loss
Oct 2007
Wireless enabled devices are ubiquitous in today's computing environment. Businesses, universities, and home users alike are taking advantage of the easy deployment of wireless devices to provide...
Provided by University of Notre Dame (Mendoza)
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White Papers
Characterizing Temporal SNR Variation in 802.11 Networks
Jan 2011
The analysis and design of wireless MAC protocols, coding schemes and transmission algorithms can significantly benefit from an understanding of the channel quality variation. The authors attempt...
Provided by University of Pennsylvania
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White Papers
Channel Assignment Schemes for Infrastructure-Based 802.11 WLANs: A Survey
Jan 2010
Efficient channel assignment is crucial for successful deployment and operation of IEEE 802.11-based WLANs. This paper presents a survey on the state of the art channel assignment schemes in IEEE...
Provided by Institute of Electrical and Electronics Engineers
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Whitepapers
SAPSM: Smart Adaptive 802.11 PSM for Smartphones
Sep 2012
Effective WiFi power management can strongly impact the energy consumption on Smartphones. Through controlled experiments, the authors find that WiFi power management on a wide variety of...
Provided by Association for Computing Machinery
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Whitepapers
On the Uplink MAC Performance of a Drive-Thru Internet
May 2012
As IEEE 802.11 Access Points (APs) open up services to mobile clients, opportunistic access to the roadside communication infrastructures from traveling vehicles has become more prominent and has...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
A Sustained QoS Solution by Contention Adaptation in IEEE 802.11e Wireless LANs
Oct 2011
The most significant issue in 802.11 contention based networks is to prevent collisions and to ensure connection quality. Researchers have shown an increased interest in collision aware back-off...
Provided by WSDOT
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Whitepapers
Multi-Homing Enabled Cognitive Radio Based Inter-Vehicle Communication System
Dec 2012
Cognitive radio based inter vehicle communication system was proposed by the researchers in 2010. They have proposed Cognitive Radio Site (CR-Site) inside the vehicle to solve the problems...
Provided by AIRCC
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Whitepapers
Dual Band Two Elements Inverted-L Antenna for 3.5 & 5 Ghz Mobile Wimax/Wi-Fi Applications
May 2011
This paper presents the numerical simulations of dual band two elements Inverted-L antenna for 3.5 GHz mobile WiMAX and 5 GHz Wi-Fi operation. The proposed antenna is feed by a coaxial connector....
Provided by AIRCC
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Whitepapers
A Survey of Using Directional Antennas in Ad Hoc Networks
Oct 2012
In this paper, the authors present a comprehensive overview on Ad hoc networking by directional antennas. Use of Directional antennas can largely reduce the interference, increase the spatial...
Provided by AIRCC
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Whitepapers
Anatomy of WiFi Access Traffic of Smartphones and Implications for Energy Saving Techniques
Feb 2012
Today's Smartphones are equipped with more features than an average personal computer. They have become the preferred means of communication, and consequently, Smartphone traffic constitutes an...
Provided by Science and Development Network (SciDev.Net)
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Whitepapers
A Comparative Simulation Platform for Ieee 802.11 and Ieee 802.15 Standards in Tree Topology
Oct 2012
Wireless Personal Area Networks (WPANs) are an emerging technology for future short range indoor and outdoor multimedia and data centric applications. In this paper the authors' work in modeling...
Provided by Creative Commons
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Whitepapers
An Approach to Design and Optimization of WLAN Patch Antennas for Wi-Fi Applications
Jan 2012
Micro strip patch antennas have been widely used in a various useful applications, due to their low weight and low profile, conformability, easy and cheap realization. In this paper, an attempt...
Provided by Wuhan Institute of Technology Network and Information Center
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Whitepapers
Priority Based Scheduling Algorithm Using Time and Transmission Length in 802.11 Networks
Aug 2012
The fairness of IEEE 802.11 wireless networks is rigid to forecast and organize since it constructed based on uncertainty and difficulty of the MAC conflicts and dynamics. So, there is a great...
Provided by International Journal of Computer Technology and Applications
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Whitepapers
Delay-Sensitive Applications in VANET and Seamless Connectivity: The Limitation of UMTS Network
Oct 2012
Multi-interface handheld devices enabling radio link connections to varieties of wireless networks (i.e 3G cellular, Wi-Fi, WiMAX) can provide seamless connectivity. With seamless connectivity,...
Provided by International Journal of Computer Science and Network Security
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Whitepapers
An Enhanced Backoff Method used between Mobiles Moving in Industrial 802.11
Jan 2012
The purpose of this paper is to discuss the exchanges between mobiles moving in an industrial environment. To reach this study, a simulation approach has been chosen to be used. The selection of...
Provided by International Journal of Computer Science Issues
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Whitepapers
JMB: Scaling Wireless Capacity With User Demands
Aug 2012
The authors present Joint Multi-user Beamforming (JMB), a system that enables independent Access Points (APs) to beamform their signals, and communicate with their clients on the same channel as...
Provided by Association for Computing Machinery
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Whitepapers
Rate Adaptation for 802.11 Multiuser MIMO Networks
Aug 2012
In Multi-User MIMO (MU-MIMO) networks, the optimal bit rate of a user is highly dynamic and changes from one packet to the next. This breaks traditional bit rate adaptation algorithms, which rely...
Provided by Association for Computing Machinery
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Whitepapers
Low Cost Approach to Real-Time Vehicle to Vehicle Communication Using Parallel CPU and GPU Processing
Dec 2012
This paper proposes a novel Vehicle to Vehicle (V2V) communication system for collision avoidance which merges four different wireless devices (GPS, Wi-Fi, ZigBee and 3G) with a low power embedded...
Provided by The Schwa
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Whitepapers
Ad hoc Mobile Wireless Network Routing Protocols- A Review
Jul 2009
Mobile Ad hoc NETworks(MANET) represent complex distributed systems that comprise wireless mobile nodes that can freely and dynamically self organize into arbitrary and temporary ad hoc network...
Provided by TechniaJOURNAL
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Whitepapers
Kalman Filter Estimation of the Number of Competing Terminals in an IEEE 802.11 Network Utilizing Error Pron-Channel
Apr 2010
Numerous applications of the Wireless Local Area Networks (WLANs) are sensitive to the state of the employed channel. Packet delay and throughput which are the crucial characteristic for almost...
Provided by AICIT
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Whitepapers
Directional Antenna based SBSAA-MAC Protocol for MANETS Review and Performance Evaluation
Sep 2011
Wireless Ad-hoc NETworks (MANETs/SANETs) are formed with mobile/static wireless nodes and have different set of problems as compared to their wired counterparts. IEEE 802.11 Medium Access Control...
Provided by University of Alicante
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Whitepapers
Data-driven Link Estimation and Routing in Sensor Network
Oct 2012
Link properties in 802.11b mesh networks and dense wireless sensor networks have been well studied. They have observed that wireless links assume complex properties, such as wide range non-uniform...
Provided by International Journal of Engineering Trends and Technology
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Whitepapers
Measurement-Based Interference Modeling Using Channel Occupancy in Wireless Mesh Networks
Apr 2012
The authors introduce a linear measurement-based method for interference estimation in wireless mesh networks. The approach is based on measuring the channel occupancy and requires only O(n)...
Provided by Humboldt University Berlin
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Whitepapers
Directional Communication System for Short-Range Vehicular Communications
May 2010
Improving safety in vehicles is achieved today by improving their ability to perceive and react to threats in the environment. Much effort is directed towards increasing the safety envelope around...
Provided by Institute of Electrical and Electronics Engineers
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Whitepapers
Hierarchical Wireless Mesh Networks Scalable Secure Framework
Dec 2012
Wireless Mesh Networks (WMNs) are more scalable than any other wireless networks, because of its unique features such as interoperability, integration and heterogeneous device support. Lacks of...
Provided by Institute of Advanced Engineering and Science (IAES)
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Whitepapers
The Impact of Packet Loss Behavior in 802.11g on the Cooperation Gain in Reliable Multicast
May 2012
In group-oriented applications for wireless networks, reliable multicast strategies are important in order to efficiently distribute data, e.g. in Wireless Mesh Networks (WMNs) and Mobile Ad-hoc...
Provided by Aarhus University
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Whitepapers
Efficient Cooperative Relaying in Wireless Multi-Hop Networks With Commodity WiFi Hardware
May 2012
In wireless multi-hop networks, cooperative relaying exploits temporal and spatial diversity by additionally transmitting via a relay node and then combining direct and relay transmissions at the...
Provided by IFIP
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Whitepapers
Effect of Fading Correlation on the Performance of Spatial Multiplexed MIMO Systems with Circular Antennas
Nov 2012
In this paper the performance of the Vertical Bell LAboratories Space-Time (V-BLAST) detection that is used in spatial multiplexed MIMO system is investigated when fading correlation effects is...
Provided by Journal of Computing
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Whitepapers
Mobility in the Network: A Phased Technology Approach
Jun 2011
Several global trends are driving a fundamental shift in the way IT is conducting their business. First, the move to a global workforce is driving a 24x7, always-on model of operation with the...
Provided by Extreme Networks
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Whitepapers
Dormitory Wireless is a Snap
Sep 2011
Higher education students today expect Wi-Fi connectivity. College-bound students are bringing three to four Wi-Fi devices to campus, including laptops, iPads and other tablets, Smartphone's and...
Provided by Extreme Networks
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Whitepapers
Wireless on the Wall
Sep 2011
Today's mobile users require consistent Wi-Fi with high throughput, but traditional ceiling-mounted access points can make it challenging to extend 802.11n into facilities with lots of rooms with...
Provided by Extreme Networks
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Whitepapers
New Worldwide Regulatory Requirements for Wireless LANs
May 2008
Countries around the world are requiring that 5 GHz Wireless LAN (WLAN) devices support the latest Dynamic Frequency Selection (DFS) standards. DFS prevents interference with military and civilian...
Provided by Atheros Communications
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Whitepapers
IEEE 802.11 and 802.16 Cooperation Within Multi-Radio Stations
Feb 2008
In this paper, the authors address the problem of the cooperative functioning of two communication standards, namely, IEEE 802.11 and IEEE 802.16, within a single multi-radio station. The concept...
Provided by State University of Aerospace Instrumentation
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Whitepapers
A Lower Bound on Mean Delay for Free Access Class of RMA Algorithms
Oct 2009
In many modern data networks the Random Multiple Access (RMA) is used to arbitrate access of the large user population to a shared broadcast channel. IEEE 802.16-based systems allow of RMA when...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Study of Beaconing for Car-to-Car Communication in Vehicular Ad-Hoc Networks
Oct 2009
IEEE 802.11p is currently being developed international standard, which specifies PHYsical (PHY) and Medium Access Control (MAC) protocols for car-to-car and car-to-infrastructure communication...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Binary Exponential Backoff Algorithm Analysis in the Lossy System With Frames
Jan 2013
In this paper, the authors consider a random multiple-access system under the control of the Binary Exponential Backoff (BEB) algorithm. They account for the time frame structure, as well as for...
Provided by State University of Aerospace Instrumentation
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Whitepapers
CAC-MAC: A Cross-Layer Adaptive Cooperative MAC for Wireless Ad Hoc Networks
Mar 2012
Cooperative communication has been recently proposed as a way to mitigate fading in wireless networks. A Cross-layer Adaptive Cooperative MAC (CAC-MAC) protocol for IEEE 802.11 DCF-based wireless...
Provided by Hindawi Publishing
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Whitepapers
Wi-Rover: A Wi-Fi Controlled Remotely Operated Video Enhanced Receiver
Oct 2012
The aim of the system is to demonstrate the use of wireless digital communication over the internet to control and communicate with a vehicular system. Design a rover which has the capability to...
Provided by International Journal of Computer Applications
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Whitepapers
Performance Investigation of 802.11 MAC DCF
Sep 2012
In the 802.11 protocol, DCF can be termed as an important mechanism in order to access the medium (Channel). This scheme is a random access based scheme which has its fundamentals based upon the...
Provided by Academy & Industry Research Collaboration Center
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Whitepapers
Homogeneous Multi-Interface Mobile Node Support in NS2
Nov 2012
NS2 is a widely used, open source tool for network simulation. A Mobile Node (MN) in NS2 by default provides only a single Wi-Fi interface. It makes difficult for users to simulate the scenario...
Provided by National Institute of Technology Karnataka
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Whitepapers
A Neural Network Based Cognitive Engine for IEEE 802.11 WLAN Access Point Selection
Apr 2012
Now-a-days IEEE 802.11 WLANs are widely deployed; in spite of this, the issue of designing an efficient and practical access point selection schemes that can provide the best throughput...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
WiMAX or Wi-Fi: The Best Suited Candidate Technology for Building Wireless Access Infrastructure
Jul 2007
With the help of many expert communication engineers IEEE has developed various wireless standards in a hierarchical fashion. Some of the deployed wireless standards are: 802.15 (Bluetooth),...
Provided by KTH
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Whitepapers
Joint Rate Adaptation and Medium Access in Wireless LANs: A Non-Cooperative Game Theoretic Perspective
Jul 2012
Wireless Local Area Networks (WLANs) based on IEEE 802.11 standards are becoming ubiquitous today and typically support multiple data rates. In such multi-rate WLANs, distributed medium access and...
Provided by University of Paris 13
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White Papers
D-Scan: Enabling Fast and Smooth Handoffs in AP-Dense 802.11 Wireless Networks
May 2009
802.11 wireless networks have gained ever greater popularity nowadays. Apart from static wireless connections, people begin to expect more user-friendly features from this kind of networks, such...
Provided by Institute of Electrical and Electronics Engineers
-
White Papers
Many-to-One Throughput Capacity of IEEE 802.11 Multihop Wireless Networks
Feb 2009
This paper investigates the many-to-one throughput capacity (And by symmetry, one-to-many throughput capacity) of IEEE 802.11 multihop networks, in which many sources send data to a sink. An...
Provided by Institute of Electrical and Electronics Engineers
-
White Papers
Real-Time Software Implementation of an IEEE 802.11a Baseband Receiver on Intel Multicore
Jul 2010
This paper presents a software-only implementation of an IEEE 802.11a (WiFi) receiver optimized for Intel multicore platforms. The receiver is about 50 times faster than a straightforward C...
Provided by Carnegie Mellon University
-
White Papers
VillageNet: A Low-Cost, 802.11-Based Mesh Network for Rural Regions
Jan 2011
VillageNet is a wireless mesh network that aims to provide low-cost broadband Internet access for rural regions. The cost of building the network is kept low by using off-the-shelf IEEE 802.11...
Provided by University of Nebraska - Lincoln
-
White Papers
PEGASUS: 802.11 Connectivity at High Speed
Sep 2007
Measurements and ongoing research have shown that WLAN connection for moving vehicles is feasible. However none of the previous works suggests a solution addressing a complete array of the...
Provided by University of Maryland
-
White Papers
Channel Assignment in an IEEE 802.11 WLAN Based on Signal-To-Interference Ratio
Dec 2007
This paper proposes a channel-assignment algorithm at the Access Points (APs) of a Wireless Local Area Network (WLAN) in order to maximize Signal-to-Interference Ratio (SIR) at the user level. The...
Provided by University of North Texas
-
White Papers
Softspeak: Making VoIP Play Well in Existing 802.11 Deployments High Speed
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, San Diego
-
White Papers
Measuring Queue Capacities of IEEE 802.11 Wireless Access Points
Jun 2007
While queue capacities have a direct impact on loss and latency during congestion, and wireless networks continue to spread in university, corporate and home networks, little is publicly known...
Provided by Worcester Polytechnic Institute
-
White Papers
Channel Management for 802.11n in Wireless Deployments
Mar 2010
IEEE 802.11n is a newly emerging wireless standard which, relative to former legacy 802.11 protocols, such as 802.11a/b/g, has a number of new mechanisms that enable multifold increases in...
Provided by University of California, Santa Barbara
-
White Papers
Wireless Reliability: Rethinking 802.11 Packet Loss
Oct 2007
Wireless enabled devices are ubiquitous in today's computing environment. Businesses, universities, and home users alike are taking advantage of the easy deployment of wireless devices to provide...
Provided by University of Notre Dame (Mendoza)
-
White Papers
Characterizing Temporal SNR Variation in 802.11 Networks
Jan 2011
The analysis and design of wireless MAC protocols, coding schemes and transmission algorithms can significantly benefit from an understanding of the channel quality variation. The authors attempt...
Provided by University of Pennsylvania
-
White Papers
Channel Assignment Schemes for Infrastructure-Based 802.11 WLANs: A Survey
Jan 2010
Efficient channel assignment is crucial for successful deployment and operation of IEEE 802.11-based WLANs. This paper presents a survey on the state of the art channel assignment schemes in IEEE...
Provided by Institute of Electrical and Electronics Engineers
-
White Papers
Empirical Studies and Queuing Modeling of Denial of Service Attacks Against 802.11 WLANs
Nov 2009
The growing popularity of 802.11-based Wireless LANs (WLAN) also increases the risk of security attacks. Most studies of WLAN security are on the protection of data integrity, and few studies are...
Provided by DePaul University
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White Papers
A Novel Rate Adaptation Scheme for 802.11 Networks
May 2009
The authors develop a rate adaptation scheme for 802.11 networks termed SRC that is based on a novel combination of sequential hypothesis testing and short-term loss ratios. The underlying design...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Scaling Properties of IEEE 802.11 Wireless Networks
Feb 2008
The IEEE 802.11 MAC protocol has gained widespread popularity and has been adopted as the de-facto layer 2 protocols for Wireless Local Area Networks (WLANs). Because of its popularity, there has...
Provided by University of Southern California
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White Papers
SpiderRadio: An Incumbent Sensing Implementation for Cognitive Radio Networking Using IEEE 802.11 Devices
Apr 2010
Spectrum sensing is one of the critical features in cognitive radio based dynamic spectrum access networking. This paper discusses a new spectrum sensing technique for primary incumbent detection....
Provided by Stevens Institute of Technology
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White Papers
Detecting Selfish Exploitation of Carrier Sensing in 802.11 Networks
May 2009
Recently, tuning the Clear Channel Assessment (CCA) threshold in conjunction with power control has been considered for improving the performance of Wireless LANs. However, CCA tuning can be...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Cooperative Load Balancing in IEEE 802.11 Networks With Cell Breathing
Jan 2008
IEEE 802.11 WLANs (Wi-Fi) are widely deployed for providing Internet access in public spaces, known as Hot Spots. In these scenarios, users tend to be "Gregarious" and essentially static. Since...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Demystifying 802.11n Power Consumption
Sep 2010
This paper report what the authors believe to be the first measurements of the power consumption of an 802.11n NIC across a broad set of operating states (Channel width; transmit power, rates,...
Provided by University of Washington
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White Papers
Rogue Access Point Detection Using Innate Characteristics of the 802.11 MAC
Jul 2009
Attacks on wireless networks can be classified into two categories: external wireless and internal wired. In external wireless attacks, an attacker uses a wireless device to target the Access...
Provided by Georgia State University
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White Papers
Maranello: Practical Partial Packet Recovery for 802.11
Mar 2010
Partial packet recovery protocols attempt to repair corrupted packets instead of retransmitting them in their entirety. Recent approaches have used physical layer confidence estimates or...
Provided by University of Maryland
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White Papers
Distributed Delay Estimation and Call Admission Control in IEEE 802.11 WLANs
Dec 2007
Voice over WiFi (VoWiFi) will soon be the main alternative to cellular phones. Providing a satisfactory user experience remains difficult, however. This paper focuses on Call Admission Control...
Provided by Columbia University
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White Papers
A Lightweight Solution for Defending Against Deauthentication/disassociation Attacks on 802.11 Networks
Mar 2008
This paper investigates a special type of Denial of Service (DoS) attack on 802.11-based networks, namely deauthentication/disassociation attack. In the current IEEE 802.11 standards, whenever a...
Provided by University of Texas at Dallas
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White Papers
Collision-Aware Design of Rate Adaptation for Multi-Rate 802.11 WLANs
Jun 2008
One of the key challenges in designing a rate adaptation scheme for IEEE 802.11 Wireless LANs (WLANs) is to differentiate bit errors from link-layer collisions. Many recent rate adaptation schemes...
Provided by Seoul National University
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White Papers
Predictable 802.11 Packet Delivery From Wireless Channel Measurements
Sep 2010
RSSI is known to be a fickle indicator of whether a wireless link will work, for many reasons. This greatly complicates operation because it requires testing and adaptation to find the best rate,...
Provided by Association for Computing Machinery
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White Papers
Analysis of an IEEE 802.11 Network Activity During a Small Workshop
Apr 2010
Understanding current performance and usage of IEEE 802.11 networks is valuable for effectively managing and deploying wireless networks in the future. This paper analyzes a wireless trace from...
Provided by Worcester Polytechnic Institute
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White Papers
NashWifi: Coordinated Management of Heterogenous Home 802.11 Networks Using Bargaining
Jan 2010
This paper presents an economically principled framework for coordinated configurations of heterogeneous wireless networks. The approach, called NashWiFi, is based on the concept of Nash...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Beacon Frame Spoofing Attack Detection in IEEE 802.11 Networks
Jan 2008
A great variety of well-known attacks exist for the IEEE 802.11 protocol. The lack of mechanisms for management frame authentication and the complexity of the protocol itself have derived into a...
Provided by Mondragon Unibertsitatea
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White Papers
Experimental Characterization of Sectorized Antennas in Dense 802.11 Wireless Mesh Networks
May 2009
Sectorized antennas can increase wireless network capacity through greater spatial reuse. Despite their increasing popularity, their real-world performance characteristics in dense wireless mesh...
Provided by Association for Computing Machinery
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White Papers
Experimental Validation of Analytical Performance Models for IEEE 802.11 Networks
Jan 2010
The authors consider the simplest IEEE 802.11 WLAN networks for which analytical models are available and seek to provide an experimental validation of these models. The experiments include the...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Channel Switching Overhead for 802.11b
Dec 2009
IEEE 802.11b devices operate in the 2.4 GHz ISM band the United States. Because of this, 802.11b devices are susceptible to interference from a multitude of sources such as microwave ovens and...
Provided by Southern Illinois University
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White Papers
Inferring and Mitigating a Link's Hindering Transmissions in Managed 802.11 Wireless Networks
Sep 2010
In 802.11 managed wireless networks, the manager can address under-served links by rate-limiting the conflicting nodes. In order to determine to what extent each conflicting node is responsible...
Provided by Association for Computing Machinery
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White Papers
Measurement-Driven Guidelines for 802.11 WLAN Design
Jan 2010
Dense deployments of WLANs suffer from increased interference and, as a result, reduced capacity. There are three main functions used to improve the overall network capacity: intelligent frequency...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
On Security Vulnerabilities of Null Data Frames in IEEE 802.11 Based WLANs
Mar 2008
Null data frames are a special but important type of frames in IEEE 802.11 based Wireless Local Area Networks (E.g., 802.11 WLANs). They are widely used for power management, channel scanning and...
Provided by City University of Hong Kong
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White Papers
Symphony: Synchronous Two-Phase Rate and Power Control in 802.11 WLANs
Jun 2008
Adaptive transmit power control in 802.11 Wireless LANs (WLANs) on a per-link basis helps increase network capacity and improves battery life of Wi-Fi enabled mobile devices. However, it faces the...
Provided by Association for Computing Machinery
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White Papers
Opportunistic Use of Client Repeaters to Improve Performance of WLANs
Dec 2008
Currently deployed IEEE 802.11WLANs (Wi-Fi Networks) share Access Point (AP) bandwidth on a per-packet basis. However, the various stations communicating with the AP often have different signal...
Provided by Association for Computing Machinery
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White Papers
Lossless Handover With N-Casting Between WiFi-WiMAX on OpenRoads
Sep 2009
The authors envisioned a future mobile wireless Internet with many radios, and many networks (in POMI). By that, they mean many radios will be found in a future mobile device. It is now common for...
Provided by Stanford University
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White Papers
Integration Gain of Heterogeneous WiFi/WiMAX Networks
Dec 2008
The authors study the integrated WiFi/WiMAX networks where users are equipped with dual-radio interfaces that can connect to either a WiFi or a WiMAX network. Previous research on integrated...
Provided by University of California, Davis
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White Papers
Channel Management in Collocated WiFi-WiMAX Networks
Dec 2009
In order to ensure fair access and efficiency of bandwidth usage in wireless integrated networks, resource allocation algorithms should be well designed. In this paper, the authors briefly discuss...
Provided by Auburn University
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White Papers
Comparative Throughput of WiFi & Ethernet LANs Using OPNET MODELER
Oct 2010
The comparison between the performance of both wired and wireless networks is based on various performance parameters. The performance of the wired Ethernet is very sensitive to the number of...
Provided by RIMT - Maharaja Aggrasen Engineering College
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