Title :
Cognitive Temporary Bypassing for Reliable Transmission in Wireless Ad Hoc Networks
Author :
Yamao, Yasushi ; Nagao, Kenichi ; Fujii, Takeo
Author_Institution :
Univ. of Electro-Commun., Tokyo
Abstract :
In wireless ad hoc networks, the wireless link SNR varies due to fading after determining a multi-hop route. This causes a temporary link error and blocks the multi-hop packet transmission. A cognitive temporary-bypassing method and its protocol are proposed to improve transmission quality in wireless ad hoc networks. Packet success probability with this method has been analyzed for Rayleigh faded wireless links as functions of node distances. Simulation results show that packet success probability is remarkably improved with the proposed bypassing method.
Keywords :
Rayleigh channels; ad hoc networks; cognitive radio; fading channels; mobile radio; radio links; telecommunication network reliability; Rayleigh faded wireless links; cognitive temporary bypassing; multihop packet transmission; reliable transmission; wireless ad hoc networks; Ad hoc networks; Delay; Fading; Mobile ad hoc networks; Monitoring; Physical layer; Protocols; Routing; Signal to noise ratio; Spread spectrum communication;
Conference_Titel :
Wireless Communication Systems, 2007. ISWCS 2007. 4th International Symposium on
Conference_Location :
Trondheim
Print_ISBN :
978-1-4244-0979-2
Electronic_ISBN :
978-1-4244-0979-2
DOI :
10.1109/ISWCS.2007.4392359
