Title :
WSN05-1: A Dual Busy-Tone MAC Scheme Supporting Voice/Data Traffic in Wireless Ad Hoc Networks
Author :
Wang, Ping ; Jiang, Hai ; Zhuang, Weihua
Author_Institution :
Dept. of Elec. & Comp. Eng., Univ. of Waterloo, Waterloo, ON
fDate :
Nov. 27 2006-Dec. 1 2006
Abstract :
In wireless ad hoc networks, in addition to the well-known hidden terminal and exposed terminal problems, the location-dependent contention may cause serious unfairness and priority reversal problems. These problems can severely degrade network performance. In this paper, a new busy- tone based medium access control (MAC) scheme supporting voice/data traffic is proposed to address these problems. Via two separated narrow band busy-tone channels with different carrier sense ranges, the proposed scheme completely resolves the hidden terminal and exposed terminal problems. Furthermore, by extending busy-tones in the transmitter busy-tone channel, the proposed scheme ensures guaranteed priority access for delay-sensitive voice traffic independent of the user locations. The long- term and short-term fairness performance for data traffic in a multi-hop environment is also greatly improved as compared with the popular IEEE 802.11e MAC scheme.
Keywords :
access protocols; ad hoc networks; carrier sense multiple access; telecommunication traffic; voice communication; wireless channels; carrier sense multiple access; data traffic; delay-sensitive voice traffic; hidden terminal; location-dependent contention; long-term fairness performance; medium access control scheme; multihop environment; narrow band dual busy-tone MAC scheme; short-term fairness performance; transmitter busy-tone channel; wireless ad hoc networks; Communication system traffic control; Degradation; Media Access Protocol; Mobile ad hoc networks; Narrowband; Protection; Road accidents; Spread spectrum communication; Telecommunication traffic; Throughput;
Conference_Titel :
Global Telecommunications Conference, 2006. GLOBECOM '06. IEEE
Conference_Location :
San Francisco, CA
Print_ISBN :
1-4244-0356-1
Electronic_ISBN :
1930-529X
DOI :
10.1109/GLOCOM.2006.488
