Space-Time Block Codes with Limited Feedback Using Antenna Grouping

Chan-Byoung CHAE; Seijoon SHIM; Robert W. HEATH, Jr.

doi:10.1093/ietcom/e91-b.10.3387

Regular Section

Space-Time Block Codes with Limited Feedback Using Antenna Grouping

Chan-Byoung CHAE, Seijoon SHIM, Robert W. HEATH, Jr.

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Keywords: space-time block code, full-diversity full-rate system, antenna selection, antenna grouping

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2008 Volume E91.B Issue 10 Pages 3387-3390

DOI https://doi.org/10.1093/ietcom/e91-b.10.3387

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Abstract

We propose an antenna grouping method that improves the error rate performance of space-time codes in a wide range of mobility environments. The idea is to group symbols to antennas based on limited feedback from the mobile station to utilize all antennas. Our approach requires only two bits of feedback information to achieve better link performance and full rate for a certain four transmit antenna system. Numerical results confirm the bit/frame error gains over the Alamouti-based space-time block code and antenna subset selection strategies.

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