Cooperative Particle Swarm Optimization Based Receiver for Large-Dimension MIMO-ZPSC Systems

Eshwaraiah, Harsha S and Chockalingam, A (2012) Cooperative Particle Swarm Optimization Based Receiver for Large-Dimension MIMO-ZPSC Systems. In: IEEE Wireless Communications and Networking Conference (WCNC), APR 01-04, 2012, Paris, FRANCE.

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Abstract

In this paper, we propose a cooperative particle swarm optimization (CPSO) based channel estimation/equalization scheme for multiple-input multiple-output zero-padded single-carrier (MIMO-ZPSC) systems with large dimensions in frequency selective channels. We estimate the channel state information at the receiver in time domain using a PSO based algorithm during training phase. Using the estimated channel, we perform information symbol detection in the frequency domain using FFT based processing. For this detection, we use a low complexity OLA (OverLap Add) likelihood ascent search equalizer which uses minimum mean square (MMSE) equalizer solution as the initial solution. Multiple iterations between channel estimation and data detection are carried out which significantly improves the mean square error and bit error rate performance of the receiver.

Item Type:	Conference Proceedings
Series.:	IEEE Wireless Communications and Networking Conference
Publisher:	IEEE
Additional Information:	IEEE Wireless Communications and Networking Conference (WCNC), Paris, FRANCE, APR 01-04, 2012
Keywords:	MIMO; ISI channels; zero padding; single-carrier systems; channel estimation/equalization; particle swarm optimization; frequency domain processing
Department/Centre:	Division of Mechanical Sciences > Centre for Earth Sciences
Date Deposited:	12 Dec 2013 10:14
Last Modified:	12 Dec 2013 10:15
URI:	http://eprints.iisc.ac.in/id/eprint/47862

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