Understanding Interference and Carrier Sensing in Wireless Mesh Networks

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Wireless mesh networks aim to provide highspeed Internet service without costly network infrastructure deployment and maintenance. The main obstacle in achieving high-capacity wireless mesh networks is interference between the mesh links. In this article, we analyze the carrier sensing and interference relations between two wireless links and measure the impact of these relations on link capacity on an indoor 802.11a mesh network testbed. We show that asymmetric carrier sensing and/or interference relations commonly exist in wireless mesh networks, and we study their impact on the link capacity and fair-channel access. In addition, we investigate the effect of traffic rate on link capacity in the presence of interference.
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Issue Date
2009-07
Language
English
Article Type
Article
Citation

IEEE COMMUNICATIONS MAGAZINE, v.47, no.7, pp.102 - 109

ISSN
0163-6804
DOI
10.1109/MCOM.2009.5183479
URI
http://hdl.handle.net/10203/198342
Appears in Collection
CS-Journal Papers(저널논문)
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