Simplified Full-Rate Quasi-Orthogonal STBC for 16x16 Massive MIMO in Rayleigh Fading Channels

Phyu Phyu HAN  Khin Zar Chi WINN  Atul SEWAIWAR  Yeon-Ho CHUNG  

Publication
IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences   Vol.E98-A   No.8   pp.1858-1859
Publication Date: 2015/08/01
Online ISSN: 1745-1337
Type of Manuscript: LETTER
Category: Communication Theory and Signals
Keyword: 
massive MIMO,  quasi-orthogonal STBC,  full-rate,  

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Summary: 
Although Quasi Orthogonal Space Time Block Code (QOSTBC) is capable of achieving a full rate transmission for more than two transmit antennas, its generation entails a complex algorithm to create the transmission matrix for a very large number of antennas. This paper presents a simplified generation scheme of QOSTBC, which can be generalized to 2k antennas for any positive integer k. In addition, under a realistic massive MIMO with up to 16 transmit and receive antennas, the performance evaluation is conducted. It is verified that the proposed scheme provides significant performance with BPSK and QPSK modulation formats in Rayleigh fading channels.