Space-Time Block Codes with Limited Feedback Using Antenna Grouping

Authors:

Chan-Byoung Chae, Seijoon Shim, Robert W. Heath, Jr., and Sung-Ryul Yun

Reference:

IEICE Trans. on Communications, vol. E91-B, no. 10, pp. 3387-3390, Oct. 2008

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 receiver. Our approach requires only two-bits of feedback information to achieve near full diversity and full rate for a four transmit antenna system. Numerical results illustrate the bit/frame error gain over antenna subset selection.

Paper available in .pdf format.