Dynamic offset contention window (DOCW) algorithm for wireless MAC in 802.11e based wireless home networks

Authors:
Tae Hyung Kim;Ludger Marwitz;Dong Ku Kim
Affiliations:
Department of Electric and Electrical Engineering, Yonsei University, Seoul, Republic of Korea;Siemens mobile, Bocholt, Germany;Department of Electric and Electrical Engineering, Yonsei University, Seoul, Republic of Korea
Venue:
CIC'02 Proceedings of the 7th CDMA international conference on Mobile communications
Year:
2002

Citing 2
Cited 1

An engineering approach to computer networking: ATM networks, the Internet, and the telephone network

An engineering approach to computer networking: ATM networks, the Internet, and the telephone network
Evaluation of Quality of Service Schemes for IEEE 802.11 Wireless LANs

LCN '01 Proceedings of the 26th Annual IEEE Conference on Local Computer Networks

Dynamic adaptation policies to improve quality of service of real-time multimedia applications in IEEE 802.11e WLAN networks

Wireless Networks

Quantified Score

Hi-index	0.00

Visualization

Abstract

To differentiate services for various traffic categories (TCs) in 802.11eD.2.0 [1], TCs possess different minimum contention window (CWmin) values, which are static over duration. Performances of low priority traffics (FTP) with higher CWmin values are suppressed even during absence of high priority traffics (video and voice). In this paper, we propose a modified backoff scheme called Dynamic Offset Contention Window (DOCW) algorithm, which dynamically adjusts CW values of traffics to network conditions. It is shown by simulations that the proposed algorithm enhances throughputs of low priority traffics where QoS is provided as well.