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A Low-Complexity, Full-Rate, Full-Diversity 2x2 STBC with Golden Code's Coding Gain

Srinath, Pavan K and Rajan, Sundar B (2008) A Low-Complexity, Full-Rate, Full-Diversity 2x2 STBC with Golden Code's Coding Gain. In: Proceedings IEEE GLOBECOM 2008, New Orleans, USA.

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Abstract

This paper presents a low-ML-decoding-complexity, full-rate, full-diversity space-time block code (STBC) for a 2 transmit antenna, 2 receive antenna multiple-input multipleoutput (MIMO) system, with coding gain equal to that of the best and well known Golden code for any QAM constellation.Recently, two codes have been proposed (by Paredes, Gershman and Alkhansari and by Sezginer and Sari), which enjoy a lower decoding complexity relative to the Golden code, but have lesser coding gain. The 2 × 2 STBC presented in this paper has lesser decoding complexity for non-square QAM constellations,compared with that of the Golden code, while having the same decoding complexity for square QAM constellations. Compared with the Paredes-Gershman-Alkhansari and Sezginer-Sari codes, the proposed code has the same decoding complexity for nonrectangular QAM constellations. Simulation results, which compare the codeword error rate (CER) performance, are presented.

Item Type: Conference Paper
Department/Centre: Division of Electrical Sciences > Electrical Communication Engineering
Date Deposited: 20 Sep 2011 05:53
Last Modified: 20 Sep 2011 05:53
URI: http://eprints.iisc.ernet.in/id/eprint/40574

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