Title :
Optimal Control of Spatial, Temporal and Bandwidth Contention in Wireless Ad Hoc Networks
Author :
Liu, Chen ; MacGregor, M.H. ; Harms, Janelle
Author_Institution :
Dept. of Comput. Sci., Univ. of Alberta, Edmonton, AB, Canada
Abstract :
In shared-medium wireless networks, nodes contend for medium access in space, time and channel bandwidth. Uncontrolled competition for limited network resources causes severe packet collisions and compounds network congestion. Consequently, data transmission is subject to very long delay, significant packet loss and poor throughput. This work focuses on improving data transmission in wireless ad hoc networks through optimal control of spatial, temporal and bandwidth contention. Our simulation study demonstrates that this optimal control scheme outperforms RTS/CTS and achieves significant improvement of CSMA/CA performance under various effects.
Keywords :
ad hoc networks; bandwidth allocation; mobile radio; optimal control; telecommunication congestion control; bandwidth contention; compounds network congestion; data transmission; optimal control; packet collision; shared-medium wireless network; spatial contention; temporal contention; wireless ad hoc network; Bandwidth; Computer networks; Data communication; Delay; Mobile ad hoc networks; Multiaccess communication; Optimal control; Time sharing computer systems; Traffic control; Wireless networks; medium access control; optimal control;
Conference_Titel :
Wireless and Mobile Computing, Networking and Communications, 2009. WIMOB 2009. IEEE International Conference on
Conference_Location :
Marrakech
Print_ISBN :
978-0-7695-3841-9
DOI :
10.1109/WiMob.2009.52
