DocumentCode :
3511882
Title :
Adaptive QoS in 802.11e Wireless Networks for Lunar Communications
Author :
Spearman, Will ; Martin, Jim ; Gao, Jay L.
Author_Institution :
Sch. of Comput., Clemson Univ., Clemson, SC
fYear :
2008
fDate :
1-8 March 2008
Firstpage :
1
Lastpage :
13
Abstract :
Lunar surface communications present specific problems that can be solved with well established terrestrial networking standards such as 802.11. Unfortunately, 802.11 has limitations regarding high priority traffic such as voice and command data which are sensitive to jitter, delay, and loss. The IEEE 802.11e standard provides enhancements that allow traffic with specific needs to be differentiated from normal traffic. While these enhancements have been shown to effectively improve latency and throughput for high priority traffic, they do not offer precise nor consistent control of performance levels. In this paper capacity and priority are explored in the context of lunar communications using 802.11g with 802.11e. We present a method to dynamically optimize 802.11e contention parameters to provide more granular control over the network´s quality of service (QoS) for the various flow types. A distributed adaptive algorithm that extends 802.11e´s enhanced distributed channel access (EDCA) is presented. We show that the enhancement provides more granular and consistent performance than that provided by the static algorithm used in standard 802.11e.
Keywords :
quality of service; space communication links; telecommunication traffic; wireless LAN; 802.11e wireless networks; adaptive QoS; distributed adaptive algorithm; enhanced distributed channel access; lunar surface communications; quality of service; static algorithm; terrestrial networking standards; voice-command data; Communication standards; Communication system traffic control; Context; Delay; Jitter; Moon; Quality of service; Telecommunication traffic; Throughput; Wireless networks;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Aerospace Conference, 2008 IEEE
Conference_Location :
Big Sky, MT
ISSN :
1095-323X
Print_ISBN :
978-1-4244-1487-1
Electronic_ISBN :
1095-323X
Type :
conf
DOI :
10.1109/AERO.2008.4526331
Filename :
4526331
Link To Document :
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