A Threshold-Based Linear Parallel Interference Canceller on Fading Channels

Tikiya, V and Chockalingam, A (2005) A Threshold-Based Linear Parallel Interference Canceller on Fading Channels. In: 2005 IEEE Wireless Communications and Networking Conference, 13-17 March, USA, Vol.2, 917-921.

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Abstract

In this paper, we obtain closed-form expressions for the bit error rate (BER) of conventional linear parallel interference canceller (LPIC), where the interference from all other users are estimated and cancelled on Rayleigh fading and diversity channels. We also propose an improved LPIC scheme which cancels the interference from only those users whose instantaneous SNRs exceed a certain threshold on Rayleigh fading channels. We obtain the optimum threshold by optimizing an approximate expression for the SIR at the canceller output. We show that the proposed threshold-based LPIC scheme performs better than the matched filter (MF) detector as well as the conventional LPIC scheme.

Item Type:	Conference Paper
Publisher:	IEEE
Additional Information:	©1990 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:	Parallel interference cancellation;Linear PIC;Fading channels
Department/Centre:	Division of Electrical Sciences > Electrical Communication Engineering
Date Deposited:	23 Nov 2005
Last Modified:	19 Sep 2010 04:21
URI:	http://eprints.iisc.ac.in/id/eprint/4083

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