Diversity-Rate Trade-off for Fading Channels with Power Control

Gorantla, Anusha and Sharma, Vinod (2012) Diversity-Rate Trade-off for Fading Channels with Power Control. In: IEEE International Conference on Communications (ICC) , JUN 10-15, 2012 , Ottawa, CANADA, pp. 2385-2391.

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Abstract

We consider a complex, additive, white Gaussian noise channel with flat fading. We study its diversity order vs transmission rate for some known power allocation schemes. The capacity region is divided into three regions. For one power allocation scheme, the diversity order is exponential throughout the capacity region. For selective channel inversion (SCI) scheme, the diversity order is exponential in low and high rate region but polynomial in mid rate region. For fast fading case we also provide a new upper bound on block error probability and a power allocation scheme that minimizes it. The diversity order behaviour of this scheme is same as for SCI but provides lower BER than the other policies.

Item Type:	Conference Paper
Series.:	IEEE International Conference on Communications
Publisher:	IEEE
Additional Information:	Copyright for this article belongs to IEEE, NEW YORK
Keywords:	Fading channel;diversity-rate trade-off;exponential diversity;power control
Department/Centre:	Division of Electrical Sciences > Electrical Communication Engineering
Date Deposited:	22 Feb 2013 09:30
Last Modified:	22 Feb 2013 09:30
URI:	http://eprints.iisc.ac.in/id/eprint/45874

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