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Cooperative Transmission in a Wireless Cluster Based on Flow Management

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3 Author(s)
Chatterjee, D. ; Univ. of Florida, Gainesville ; Wong, T.F. ; Lok, T.M.

In this paper, a cooperative transmission design for a multi-node wireless cluster network is presented. It is assumed that the nodes operate in half-duplex mode and that channel information is available at the nodes. The proposed design involves solving a convex flow optimization problem on a fully connected graph that models the cluster network. A much simpler generalized routing protocol based on the above design is also presented. Both the proposed flow-optimized protocol and the generalized routing protocol are shown to achieve the optimal diversity-multiplexing tradeoff for the cluster network. Moreover, simulation results are presented to quantify the gap between the performance of the proposed protocols and that of a max-flow-min-cut type bound, in terms of outage probability.

Published in:

Wireless Communications and Networking Conference, 2008. WCNC 2008. IEEE

Date of Conference:

March 31 2008-April 3 2008

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