Partial Feedback Based Orthogonal Space-Time Block Coding With Flexible Feedback Bits

Lei Wang, Zhigang Chen

School of Electronics and Information Engineering, Xi’an Jiaotong University, Xi’an, China.

DOI: 10.4236/cn.2013.53B2024                

Abstract

The conventional orthogonal space-time block code (OSTBC) with limited feedback has fixed p-1 feedback bits for the specific n_tp transmit antennas. A new partial feedback based OSTBC which provides flexible feedback bits is proposed in this paper. The proposed scheme inherits the properties of having a simple decoder and the full diversity of OSTBC, moreover, preserves full data rate. Simulation results show that for n_tp transmit antennas, the proposed scheme has the similar performance with the conventional one by using p-1 feedback bits, whereas has the better performance with more feedback bits.

Keywords

MIMO; Transmit Diversity; Space-time Block Coding; Partial Feedback

Conflicts of Interest

The authors declare no conflicts of interest.

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