SNR Estimation in Nakagami-m Fading With Diversity Combining and Its Application to Turbo Decoding

Ramesh, A and Chockalingam, A and Milstein, Laurence B (2002) SNR Estimation in Nakagami-m Fading With Diversity Combining and Its Application to Turbo Decoding. In: IEEE Transactions on Communications, 50 (11). pp. 1719-1724.

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Abstract

We propose an online signal-to-noise ratio (SNR) estimation scheme for Nakagami- fading channels with branch equal gain combining (EGC) diversity.We derive the SNR estimate based on the statistical ratio of certain observables over a block of data, and use the SNR estimates in the iterative decoding of turbo codes on Nakagami- fading channels with branch EGC diversity. We evaluate the turbo decoder performance using the SNR estimate under various fading and diversity scenarios ( = 0, 5, 1, 5 and = 1, 2, 3) and compare it with the performance using perfect knowledge of the SNR and the fade amplitudes.

Item Type:	Journal Article
Publication:	IEEE Transactions on Communications
Publisher:	IEEE
Additional Information:	Copyright 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:	Diversity;Nakagami fading;SNR estimation;Turbo codes
Department/Centre:	Division of Electrical Sciences > Electrical Communication Engineering
Date Deposited:	10 Jan 2006
Last Modified:	19 Sep 2010 04:22
URI:	http://eprints.iisc.ac.in/id/eprint/5010

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