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Power-efficient Irregular Repeat-Accumulate Encoded BICM-ID for 16-ary Signal Constellations

Lookup NU author(s): Dr Stephane Le Goff, Professor Bayan Sharif, Dr Arafat Al-Dweik

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Abstract

The design of power-efficient forward error correction techniques over additive white Gaussian noise (AWGN) and frequency non-selective fading channels is considered in this work. The aim of this paper is to investigate the application of BICM with iterative demodulation and decoding (BICM-ID) system with irregular repeat-accumulate (IRA) codes to minimize the bit error rate (BER) and determine the most suitable constellation and mapping pairs for designing power-efficient BICM-ID systems over AWGN and Rayleigh fading channels using the concept of channel capacity limit. Simulation results have confirmed that a remarkable BER improvement can be achieved using the proposed design criterion. Based on the IRA-encoded BICM-ID technique considered, the BER improvement gained is exhibited either as an additional coding gain, error floor elimination, or both. The code components include the IRA codes, irregular low-density parity-check (ILDPC) codes and convolutional codes (CC). The modulation technique considered is the widely-used 16-ary constellations with various bit mappings.


Publication metadata

Author(s): LeGoff S; Sharif B; Al-Dweik A; Han WK

Publication type: Article

Journal: Journal of Communications

Year: 2011

Volume: 6

Issue: 4

Pages: 319-329

Print publication date: 01/07/2011

ISSN (print): 1796-2021

Publisher: Academy Publisher

URL: http://dx.doi.org/10.4304/jcm.6.4.319-329

DOI: 10.4304/jcm.6.4.319-329


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