Throughput analysis of opportunistic feedback for downlink multiuser diversity with capture effect

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Journal Article
IEEE Communications Letters, 2012, 16 (1), pp. 44 - 46
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An opportunistic feedback protocol has been proposed in the literature to achieve multiuser diversity for the downlink transmission of a multiuser wireless system. In this letter, through theoretical analysis and extensive simulations, it is shown that the capture effect can have a significant impact on system throughput. It is also shown that, to achieve optimal throughput, the number of minislots used for opportunistically finding a user in the protocol should not be too large due to the overhead induced by the control packets. © 2006 IEEE.
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