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Minimum-energy route configuration for wireless ad hoc networks

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3 Author(s)
Le Yang ; Dept. of Elec. & Comp. Eng., Victoria Univ., BC ; Hong-Chuan Yang ; Wu, K.

We consider the energy-efficient transmission of traffics with hard delay constraint over wireless ad hoc networks. We adopt a cross-layer design approach and develop a route configuration method such that the average energy cost for packet delivery is minimized while maintaining the required delivery ratio. In particular, we allow the intermediate nodes to drop a packet when the node has performed certain number of unsuccessful retransmissions. Based on the physical channel state information, we formulate and solve an optimization problem to jointly configure the transmitting power for each transmitting node and the retransmission limit over each hop. The resulting route configuration solution achieves minimum energy consumption for message delivery while guaranteeing an acceptable quality of service (QoS) level. Numerical results demonstrate the effectiveness and efficiency of our route configuration algorithm regarding both energy saving and statistical QoS guarantee

Published in:

Performance, Computing, and Communications Conference, 2006. IPCCC 2006. 25th IEEE International

Date of Conference:

10-12 April 2006