Adaptive Scheme to Support Real-time Traffic in IEEE 802.11 Wireless LANs

Author

Zhu, Rongbo ; Yang, Yuhang

Volume

3

fYear

2006

fDate

16-20 2006

Abstract

An effective adaptive scheme is proposed to improve the performance of IEEE 802.11 wireless local area networks (LANs) to support real-time traffic. In order to accurately estimate system status, the scheme employs a bi-dimensional Markovian model and a point coordination function (PCF) model to depict distributed coordination function (DCF) and PCF respectively. The scheme adaptively adjusts the ratio of DCF duration to PCF duration to satisfy the requirements of real-time traffic in a runtime manner. Simulation results show that the proposed scheme significantly improves quality of service (QoS) in terms of throughput and delay metrics

Keywords

Markov processes; quality of service; telecommunication traffic; wireless LAN; IEEE 802.11 wireless LAN; QoS; adaptive scheme; bi-dimensional Markovian model; delay metrics; distributed coordination function; point coordination function model; quality of service; real-time traffic; wireless local area networks; Automation; Delay; Downlink; Electronic mail; Local area networks; Quality of service; Real time systems; Telecommunication traffic; Traffic control; Wireless LAN;

fLanguage

English

Publisher

ieee

Conference_Titel

Signal Processing, 2006 8th International Conference on

Conference_Location

Beijing

Print_ISBN

0-7803-9736-3

Electronic_ISBN

0-7803-9736-3

Type

conf

DOI

10.1109/ICOSP.2006.345758

Filename

4129326