On the improvement of diversity-multiplexing gain tradeoff in a training based TDD-simo system

Bharath, BN and Murthy, Chandra R (2010) On the improvement of diversity-multiplexing gain tradeoff in a training based TDD-simo system. In: 2010 IEEE International Conference on Acoustics, Speech, and Signal Processing, MAR 14-19, 2010, Dallas, TX, pp. 3366-3369.

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Abstract

This paper investigates the diversity-multiplexing gain tradeoff (DMT) of a time-division duplex (TDD) single-input multiple-output (SIMO) system with perfect channel state information (CSI) at the receiver (CSIR) and partial CSI at the transmitter (CSIT). The partial CSIT is acquired through a training sequence from the receiver to the transmitter. The training sequence is chosen in an intelligent manner based on the CSIR, to reduce the training length by a factor of r, the number of receive antennas. We show that, for the proposed training scheme and a given channel coherence time, the diversity order increases linearly with r for nonzero multiplexing gain. This is a significant improvement over conventional orthogonal training schemes.

Item Type:	Conference Paper
Series.:	International Conference on Acoustics Speech and Signal Processing ICASSP
Publisher:	IEEE
Additional Information:	Copyright 2010 IEEE. Personal use of this material is permitted.However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
Keywords:	Channel estimation;training sequence;diversity order; multiplexing gain
Department/Centre:	Division of Electrical Sciences > Electrical Communication Engineering
Date Deposited:	12 Apr 2011 07:40
Last Modified:	12 Apr 2011 07:40
URI:	http://eprints.iisc.ac.in/id/eprint/36769

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