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  4. A Per-Class QoS Service Model in IEEE 802.11e WLANs
 
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A Per-Class QoS Service Model in IEEE 802.11e WLANs

Journal
Second International Conference on Quality of Service in Heterogeneous Wired/Wireless Networks, Qshine 2005
Journal Volume
2005
Date Issued
2005-08
Author(s)
Jeng Farn Lee
Meng Chang Chen
WANJIUN LIAO  
DOI
10.1109/QSHINE.2005.3
URI
http://scholars.lib.ntu.edu.tw/handle/123456789/317767
https://www.scopus.com/inward/record.uri?eid=2-s2.0-33845448597&doi=10.1109%2fQSHINE.2005.3&partnerID=40&md5=89439e2a7702f7ebf7a6915a3bfbca4c
Abstract
In this paper, we study the provision of per-class QoS for IEEE 802.11e Enhanced Distributed Channel Access (EDCA) WLANs. We propose two mechanisms, called BIWF-SP and IDFQ-SP, based on backoff interval (BI) and inter-frame space (IFS), respectively. In our mechanisms, both strict priority and proportional fair service are supported. We describe the operations of the proposed mechanisms in details, and compare their performance with the original EDCA mechanism via simulations. The results show that both BIWF-SP and IDFQ-SP outperform the original EDCA in terms of the support for both strict priority and weighted fair service. Compared to IDFQ-SP, BIWF-SP is easier to be implemented in real systems; compared to BIWF-SP, IDFQ-SP has better aggregate throughput and is more stable. More importantly, both mechanisms conform with the IEEE 802.11e EDCA standard, rendering both good candidates to provide per-class QoS service for IEEE 802.11 WLANs. © 2005 IEEE.
Other Subjects
Communication channels (information theory); Local area networks; Quality of service; Telecommunication services; Backoff interval (BI); Enhanced Distributed Channel Access (EDCA); Inter-frame space (IFS); Wireless local area network (WLAN); Wireless telecommunication systems
Type
conference paper
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