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Partial Feedback Based Orthogonal Space-Time Block Coding With Flexible Feedback Bits
School of Electronics and Information Engineering, Xi’an Jiaotong University, Xi’an, China
School of Electronics and Information Engineering, Xi’an Jiaotong University, Xi’an, China
- 1 School of Electronics and Information Engineering, Xi’an Jiaotong University, Xi’an, China
- 2 School of Electronics and Information Engineering, Xi’an Jiaotong University, Xi’an, China
Communications and Network·Volume 05 (2013)·Pages 127–131·Published 27 September 2013·DOI10.4236/cn.2013.53B2024
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Abstract
The conventional orthogonal space-time block code (OSTBC) with limited feedback has fixed p -1 feedback bits for the specific n t p 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 t p 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.
KeywordsMIMOTransmit DiversitySpace-time Block CodingPartial Feedback
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