Closed-Loop Quasi-Orthogonal Space-Time Block Codes with Power Scaling and Low-Rate Feedback Information

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概要

• 論文の詳細を見る

• Recently, novel full-diversity full-rate quasi-orthogonal space-time block codes (QSTBCs) with power scaling and double-symbol maximum likelihood (ML) decoding was proposed. Specifically, the codes can achieve full-diversity through linearly combining two adequately power scaled orthogonal space-time block codes (OSTBCs). In this letter, we derive expressions for mutual information and post-processing signal-to-noise ratio (SNR) for a system with four transmit antennas. By exploiting these formulas, we propose three transmit antenna grouping (TAG) methods for a closed-loop system with low-rate feedback information. The TAG methods make it possible to provide an excellent error-rate performance even with a low-complexity zero-forcing (ZF) detection, especially in spatially correlated fading channels.

• （社）電子情報通信学会の論文
• 2010-11-01

著者

• LEE Hoojin

  Department of Electrical & Computer Engineering, The University of Texas at Austin

• Lee Hoojin

  Department Of Information And Communications Engineering Hansung University

• LEE Hoojin

  Department of Information and Communications Engineering, Hansung University

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