Presentation 2007-12-21
Throughput Measurements under Various Contention Window Sizes in Wireless Mesh Networks
Hideaki KATO, Nobuo FUNABIKI, Toru NAKANISHI,
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Abstract(in English) As a scalable access netwok to the Internet, we have studied the Wireless Internet-access Mesh NET-work (WIMNET) that is composed of multiple access points (APs) with multihop communications. In WIMNET, the throughput shortage can be caused by interferences among communication links between APs, and the thoughput unfairness between APs can be caused by the difference on numbers of hops from APs to the gateway. As a solution to these problems, we have proposed the contention window (CW) size control method in CSMA/CA protocol, and have evaluated it through simulations. In this paper, we evaluate the effect of our proposal through throughput measurements in real environments after implementing it on a Linux-PC. Our results show that the optimal CW size is actually different depending on the number of APs in WIMNET, and there is a trade-off between the increase of the average throughput and the fairness of the throughput between APs.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) wireless mesh network / AP / contention window size / throughput / WDS
Paper # NS2007-115
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Committee NS
Conference Date 2007/12/13(1days)
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Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Throughput Measurements under Various Contention Window Sizes in Wireless Mesh Networks
Sub Title (in English)
Keyword(1) wireless mesh network
Keyword(2) AP
Keyword(3) contention window size
Keyword(4) throughput
Keyword(5) WDS
1st Author's Name Hideaki KATO
1st Author's Affiliation Okayama University Graduate School of Natural Science and Technology()
2nd Author's Name Nobuo FUNABIKI
2nd Author's Affiliation Okayama University Graduate School of Natural Science and Technology
3rd Author's Name Toru NAKANISHI
3rd Author's Affiliation Okayama University Graduate School of Natural Science and Technology
Date 2007-12-21
Paper # NS2007-115
Volume (vol) vol.107
Number (no) 403
Page pp.pp.-
#Pages 6
Date of Issue