Title :
Power control in multihop CSMA
Author :
Yan, Bo ; Gharavi, Hamid
Author_Institution :
Nat. Inst. of Stand. & Technol., Gaithersburg, MD
Abstract :
This paper aims at improving the power efficiency of the CSMA/CA protocol for transmission of multimedia information over multihop wireless channels. Using a distance dependent propagation model, we present a power control scheme, which is based on the receiver sensitivity adjustment mechanism. The receiver sensitivity approach aims at exploiting a tradeoff between the interference and the contention in accessing the shared medium. For real-time traffic, we show that by controlling the receiver sensitivity threshold we can significantly improve the multihop link performance
Keywords :
carrier sense multiple access; multimedia communication; power control; radio receivers; telecommunication congestion control; telecommunication traffic; wireless channels; CSMA-CA protocol; carrier sense mulitple access; collision avoidance; distance dependent propagation model; multihop wireless channel; multimedia information; power control scheme; real-time traffic; receiver sensitivity adjustment mechanism; Active noise reduction; Background noise; Interchannel interference; Multiaccess communication; NIST; Power control; Signal to noise ratio; Spread spectrum communication; Throughput; Wireless LAN; CSMA/CA; MANET; WLAN; multihop; power-control;
Conference_Titel :
World of Wireless, Mobile and Multimedia Networks, 2006. WoWMoM 2006. International Symposium on a
Conference_Location :
Buffalo-Niagara Falls, NY
Print_ISBN :
0-7695-2593-8
DOI :
10.1109/WOWMOM.2006.89
