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A Survey Of Quality Of Service In IEEE 802.11 Networks
White Papers However, due to the lack of built-in quality of service support, IEEE 802.11 experiences serious challenges in meeting the demands of multimedia services and applications. Developed as a simple and cost-effective wireless technology for best effort...
[October 6, 2005, 3:00]
A Quality Of Service Architecture For IEEE 802.16 Standard
White Papers The IEEE 802.16 broadband wireless access system (BWA) offers advantages of fast deployment and cost-effective solution to the last-mile wireless connection problem in metropolitan areas and underserved rural areas.
[January 21, 2005, 2:00]
How Well Can The IEEE 802.11 Wireless LAN Support Quality Of Service?
White Papers This paper studies an important problem in the IEEE 802.11 Distributed Coordination Function (DCF)-based Wireless Local Area Network (WLAN): how well can the network support Quality of Service (QoS). Specifically, this paper analyzes the network's...
[January 18, 2006, 0:01]
Supporting VoIP Traffic In IEEE 802.11 WLAN With Enhanced Medium Access Control (MAC) For Quality Of Service
White Papers This paper evaluates the capability of the enhanced point coordination function (EPCF) and enhanced distributed coordination function (EDCF), which are part of the medium access control (MAC) enhancements for QoS in the IEEE 802.11e supplements...
[October 6, 2005, 3:00]
Improved Quality Of Service In IEEE 802.15.4 Mesh Networks
White Papers In collaboration under a Department of Energy grant for the Industries of the Future, General Electric and Sensicast Systems have studied performance of 2.4 GHz IEEE 802.15.4 radio transceivers in factory environments, with particular attention to...
[May 16, 2006, 1:00]
Quality Of Service Aware MAC Based On IEEE 802.11 For Multihop Ad-Hoc Networks
White Papers Quality of Service (QoS) support for such applications in mobile ad hoc networks (MANETs) requires acceptable channel conditions, QoS-aware mechanisms for channel access, identification of proper forwarding (transit) nodes, as well as measures for...
[October 20, 2005, 0:00]
Quality Of Service Schemes For IEEE 802.11 Wireless LANs - An Evaluation
White Papers This paper evaluates four mechanisms for providing service differentiation in IEEE 802.11 wireless LANs. The evaluated schemes are the Point Coordinator Function (PCF) of IEEE 802.11, the Enhanced Distributed Coordinator Function (EDCF) of the...
[June 16, 2006, 1:00]
Evaluation Of Quality Of Service Schemes For IEEE 802.11 Wireless LANs
White Papers This paper evaluates four mechanisms for providing service differentiation in IEEE 802.11 wireless LANs, the Point Coordinator Function (PCF) of IEEE 802.11, the Enhanced Distributed Coordinator Function (EDCF) of the proposed IEEE 802.11e...
[January 19, 2006, 23:00]
Spectralink Voice Priority: Quality Of Service For Voice Traffic On Wireless LANs
White Papers SpectraLink is committed to working with the IEEE and other 802.11 vendors to deliver superior voice quality over wireless LANs. SpectraLink Voice Priority (SVP) is an open, straightforward QoS approach that has been adopted by most leading vendors...
[March 2, 2004, 11:20]
Programming Internet Quality Of Service
White Papers To help speed the introduction of value-added services, we propose a unified, programmable QoS API framework based on the IEEE P1520 Reference Model fostering open, standard interfaces for networks. The deployment for new Internet services is...
[August 14, 2003, 16:19]
Wireless Token Ring Protocol-Performance Comparison With IEEE 802.11
White Papers This paper presents the performance advantage of Wireless Token Ring Protocol (WTRP) versus IEEE 802.11 in DCF mode. WTRP supports guaranteed QoS in terms of bounded latency and reserved bandwidth which are crucial constraints of the real time...
[January 18, 2006, 0:01]
Filling The Gaps In Order To Offer QoS Guarantees In IEEE 802.11 WLANs
White Papers Current IEEE 802.11 standards are not capable of offering Quality-of-Service (QoS) guarantees to WLAN users. Even the QoS features of the new extension, IEEE 802.11e draft standard, do not suffice. The main goal of this work is to introduce two...
[August 4, 2008, 0:00]
ChaPLeT: Channel-Dependent Packet Level Tuning For Service Differentiation In IEEE 802.11e
White Papers With the increased use of IEEE 802.11b wireless networks, there is a strong need to support diverse Quality of Service (QoS) requirements. Although IEEE 802.11e provides a level of service differentiation by statically associating different QoS...
[July 25, 2006, 3:16]
Optimized Scalable Video Streaming Over IEEE 802.11a/e HCCA Wireless Networks Under Delay Constraints
White Papers The Quality-of-Service (QoS) guarantees enabled by the new IEEE 802.11a/e Wireless LAN (WLAN) standard are specifically targeting the real-time transmission of multimedia content over the wireless medium.
[November 26, 2007, 1:28]
Adaptive Fair Channel Allocation For QoS Enhancement In IEEE 802.11 Wireless LANs
White Papers The focus of this paper is on QoS support mechanisms for IEEE 802.11 Wireless ad-hoc networks. The paper reviews limitations of the upcoming IEEE 802.11e Enhanced DCF (EDCF) and other enhanced MAC schemes that have been proposed to support QoS for...
[May 24, 2006, 1:00]
Modeling And Simulation Of MAC For QoS In IEEE 802.11e Using OPNET Modeler
White Papers This paper presents an IEEE 802.11e model developed using the OPNET Modeler, which is employed for Medium Access Control (MAC) enhancements for Quality of Service (QoS). IEEE 802.11e QoS is implemented using the concept of varying levels of service...
[July 18, 2008, 0:00]
Measurement-Based Wireless LAN Troubleshooting
White Papers Wireless networks based on the IEEE 802.11 family of standards are becoming increasingly common. Their wide-scale deployment introduces a set of new operational problems concerning connectivity, security and quality-of-service.
[January 4, 2007, 19:55]
Performance Analysis Of QoS Supported By Enhanced Distributed Channel Access (EDCA) Mechanism In IEEE 802.11e
White Papers This paper evaluates the capability of QoS support in Enhanced Distributed Channel Access (EDCA) mechanism of the IEEE 802.11e standard, which is the Medium Access Control (MAC) enhancements for QoS support in 802.11.EDCA mechanism allow...
[July 18, 2008, 1:01]
An Enhancement To The IEEE 802.11e EDCA Providing QoS Guarantees
White Papers However, the IEEE 802.11 standard, which undeniably is the most widespread wireless technology of choice for WLANs and ad hoc networks, does not address this issue. In order to support applications with QoS requirements, the upcoming IEEE 802.11e...
[May 12, 2006, 0:00]
Perfectly Periodic Scheduling For Fault Avoidance In IEEE 802.11e In The Context Of Home Networks
White Papers In the upcoming new standard IEEE 802.11e to support Quality of Service (QoS) in WLAN, this paper presents perfectly periodic scheduling based on usage probability to provide fault avoidance. The paper addresses Medium Access Control (MAC...
[October 20, 2005, 3:00]
