NDLI: Adaptive Segregation-Based MAC Protocol for Real-Time Multimedia Traffic in WLANs

Content Provider	IEEE Xplore Digital Library
Author	Zen, H. Habibi, D. Rassau, A. Wyatt, J.
Copyright Year	2007
Description	Author affiliation: Edith Cowan Univ., Joondalup (Zen, H.; Habibi, D.; Rassau, A.; Wyatt, J.)
Abstract	Wireless local area networks (WLANs) have become very popular both in private and public sectors. Despite the fast expansion of WLANs in various environments, quality of service (QoS) issues for multimedia applications in WLANs are not yet resolved. Multimedia applications contain traffic that are sensitive to delay and jitter and therefore a best-effort protocol such as the legacy IEEE 802.11 is not suitable. The 802.11e protocol provides prioritization and classification of traffic to offer better QoS for real-time services. However, it leaves the design and implementation of many important optimization features to vendors. In this paper we introduce a mechanism to improve the delay and jitter of real-time traffic in WLAN nodes supporting multimedia applications. In our proposed mechanism, we segregate voice and video traffic from the best-effort traffic. We create a scheduler that schedules the access of real-time traffic and non real-time traffic to the medium with centralized polling and distributed contention respectively. We show that our proposed protocol performs better in terms of delay and jitter than the legacy 802.11 and 802.11e in a scenario where all wireless nodes carry multimedia traffic simultaneously.
Starting Page	461
Ending Page	466
File Size	451873
Page Count	6
File Format	PDF
ISBN	9781424412297
ISSN	15566463
DOI	10.1109/ICON.2007.4444130
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-11-19
Publisher Place	Australia
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Media Access Protocol Quality of service Delay Jitter Streaming media Wireless LAN Traffic control Wireless application protocol Telecommunication traffic Job shop scheduling
Content Type	Text
Resource Type	Article

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