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A Semidefinite Programming Based Cooperative Relaying Strategy for Wireless Mesh Networks with Relay Signal Quantization

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4 Author(s)
Krishna, R. ; Adv. Signal Process. Group, Loughborough Univ., Loughborough ; Cumanan, K. ; Xiong, Z. ; Lambotharan, S.

We propose a cooperative relaying strategy for wireless mesh networks where a set of relay nodes assists forwarding signals from multiple sources to multiple destinations. A semi- definite programming framework is used to ensure target SINRs at the destination are achieved with minimum possible transmit power at the relay layers. The proposed algorithm also considers various level of quantization applied to the messages passed between relays within its optimization framework. The proposed technique has been shown to outperform a non-cooperation based relaying strategy for various values of SINR targets.

Published in:

Vehicular Technology Conference, 2009. VTC Spring 2009. IEEE 69th

Date of Conference:

26-29 April 2009