Security problems in 802.11 wireless networks standard due to the inefficiency of wired equivalent privacy protocol.

Security problems in 802.11 wireless networks standard due to the inefficiency of wired equivalent privacy protocol.

Date: May 2003
Creator: Samanthapudi, Varma
Description: Due to the rapid growth of wireless networking, the fallible security issues of the 802.11 standard have come under close scrutiny. Nowadays most of the organizations are eager to setup wireless local area networks to reduce the hassles of limited mobility provided by conventional wired network. There are serious security issues that need to be sorted out before everyone is willing to transmit valuable corporate information on a wireless network. This report documents the inherent flaws in wired equivalent privacy protocol used by the 802.11 standard and the ensuing security breaches that can occur to a wireless network due to these flaws. The solutions suggested in this report might not actually make the 802.11 standard secure, but will surely help in the lead up to a secure wireless network standard.
Contributing Partner: UNT Libraries
Self-Configuring Wireless MEMS Network

Self-Configuring Wireless MEMS Network

Date: January 2008
Creator: Akl, Robert G.; Kavi, Krishna M. & El Rewini, Hesham
Description: This presentation discusses miniature, lightweight, self-powered wireless sensors, and networking software needs.
Contributing Partner: UNT College of Engineering
Resource Allocation in Mobile and Wireless Networks

Resource Allocation in Mobile and Wireless Networks

Access: Use of this item is restricted to the UNT Community.
Date: August 2003
Creator: Owens II, Harold
Description: The resources (memory, power and bandwidth) are limited in wireless and mobile networks. Previous research has shown that the quality of service (QoS) of the mobile client can be improved through efficient resources management. This thesis contains two areas of research that are strongly interrelated. In the first area of research, we extended the MoSync Algorithm, a network application layer media synchronization algorithm, to allow play-out of multimedia packets by the base station upon the mobile client in a First-In-First-Out (FIFO), Highest-Priority-First (PQ), Weighted Fair-Queuing (WFQ) and Round-Robin (RR) order. In the second area of research, we make modifications to the DSR and TORA routing algorithms to make them energy aware routing protocols. Our research shows that the QoS of the mobile client can be drastically improved through effective resource allocation.
Contributing Partner: UNT Libraries
Performance Analysis of Wireless Networks with QoS Adaptations

Performance Analysis of Wireless Networks with QoS Adaptations

Date: August 2003
Creator: Dash, Trivikram
Description: The explosive demand for multimedia and fast transmission of continuous media on wireless networks means the simultaneous existence of traffic requiring different qualities of service (QoS). In this thesis, several efficient algorithms have been developed which offer several QoS to the end-user. We first look at a request TDMA/CDMA protocol for supporting wireless multimedia traffic, where CDMA is laid over TDMA. Then we look at a hybrid push-pull algorithm for wireless networks, and present a generalized performance analysis of the proposed protocol. Some of the QoS factors considered include customer retrial rates due to user impatience and system timeouts and different levels of priority and weights for mobile hosts. We have also looked at how customer impatience and system timeouts affect the QoS provided by several queuing and scheduling schemes such as FIFO, priority, weighted fair queuing, and the application of the stretch-optimal algorithm to scheduling.
Contributing Partner: UNT Libraries
Solutions for Dynamic Channel Assignment and Synchronization Problem for Distributed Wireless Multimedia System

Solutions for Dynamic Channel Assignment and Synchronization Problem for Distributed Wireless Multimedia System

Date: August 2002
Creator: Hong, SungBum
Description: The recent advances in mobile computing and distributed multimedia systems allow mobile hosts (clients) to access wireless multimedia Data at anywhere and at anytime. In accessing multimedia information on the distributed multimedia servers from wireless personal communication service systems, a channel assignment problem and synchronization problems should be solved efficiently. Recent demand for mobile telephone service have been growing rapidly while the electro-magnetic spectrum of frequencies allocated for this purpose remain limited. Any solution to the channel assignment problem is subject to this limitation, as well as the interference constraint between adjacent channels in the spectrum. Channel allocation schemes provide a flexible and efficient access to bandwidth in wireless and mobile communication systems. In this dissertation, both an efficient distributed algorithm for dynamic channel allocation based upon mutual exclusion model, and an efficient distributed synchronization algorithm using Quasi-sink for wireless and mobile multimedia systems to ensure and facilitate mobile client access to multimedia objects are proposed. Algorithm's performance with several channel systems using different types of call arrival patterns is determined analytically. A set of simulation experiments to evaluate the performance of our scheme using message complexity and buffer usage at each frame arrival time.
Contributing Partner: UNT Libraries
Autonomous Robot Localization Using WiFi Fingerprinting

Autonomous Robot Localization Using WiFi Fingerprinting

Date: April 14, 2011
Creator: Bunkley, Terrence; Wright, Alex & Namuduri, Kamesh
Description: This paper discusses autonomous robot localization using WiFi fingerprinting.
Contributing Partner: UNT Honors College
Dynamic Channel Assignment in IEEE 802.11 Networks

Dynamic Channel Assignment in IEEE 802.11 Networks

Date: March 2007
Creator: Akl, Robert G. & Arepally, Anurag
Description: This paper discusses dynamic channel assignment in IEEE 802.11 networks.
Contributing Partner: UNT College of Engineering
Optimal Access Point Selection and Traffic Allocation in IEEE 802.11 Networks

Optimal Access Point Selection and Traffic Allocation in IEEE 802.11 Networks

Date: July 2005
Creator: Akl, Robert G. & Park, Sangtae
Description: This paper discusses optimal access point selection and the traffic allocation in IEEE 802.11 networks.
Contributing Partner: UNT College of Engineering
Autonomous Robot Localization Using WiFi Fingerprinting

Autonomous Robot Localization Using WiFi Fingerprinting

Date: April 14, 2011
Creator: Wright, Alex; Bunkley, Terrence & Namuduri, Kamesh
Description: Presentation for the 2011 UNT Scholars Day discussing research on using 802.11 wireless networks to determine the location of autonomous robots.
Contributing Partner: UNT Honors College