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Quasi-Orthogonal STBC With Minimum Decoding Complexity: Performance Analysis, Optimal Signal Transformations, and Antenna Selection Diversity

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Executive Summary

This paper presents a new method to directly analyze and optimize Symbol Error Rate (SER) performance of Minimum Decoding Complexity (MDC) ABBA space-time block codes based on a tight union bound on SER. Additionally, a new signal transformation for rectangular quadrature amplitude modulation is proposed to provide better performance than the existing ones with lower encoding/decoding complexities. It is also shown that MDC-ABBA codes achieve full-diversity with antenna selection and limited feedback.

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