Decoding algorithm with low complexity for rate one VBLAST with full diversity based on massive MIMO system

被引：0
|
作者：
Li Z. [1 ]
Shen L. [1 ]
Wu M. [1 ]
Wang Z. [2 ]
Jia Z. [1 ]
Song T. [1 ]
机构：
[1] National Mobile Communications Research Laboratory, Southeast University, Nanjing
[2] Institute of RF- & OE-ICs, Southeast University, Nanjing
来源：
Dongnan Daxue Xuebao (Ziran Kexue Ban)/Journal of Southeast University (Natural Science Edition) | 2016年 / 46卷 / 05期
关键词：
Bit error rate(BER); Massive multiple-input multiple-output (MIMO) system; Signal-to-noise ratio(SNR); Vertical bell laboratories layered space time (VBLAST);
D O I：
10.3969/j.issn.1001-0505.2016.05.001
中图分类号：
学科分类号：
摘要：
To improve the diversity gain of the massive multiple-input multiple-output (MIMO) system and reduce the decoding complexity, a kind of rate one vertical bell laboratories layered space time (VBLAST) code with full diversity is designed, and the received signals are detected by a low complexity algorithm, named maximum ratio combining (MRC) algorithm. The average output signal-to-interference-noise ratio (SINR) of this algorithm and the average output signal-to-noise ratio (SNR) of the traditional zero-forcing (ZF) algorithm are calculated, respectively. The conditions of equal performance are analyzed. The computational complexity and the bit error rate performance of these two algorithms are compared. The results show that the MRC algorithm can provide a gain of 0.4 and 0.3 dB than the ZF algorithm when the bit error rate (BER) is 10-5 and the numbers of the transmit antennas are 400 and 40 for binary-phase shift keying (BPSK) and quadrature-phase shift keying (QPSK), respectively. The MRC algorithm can decrease the computational complexity and ensure the bit error rate performance in the massive MIMO system. © 2016, Editorial Department of Journal of Southeast University. All right reserved.
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页码：905 / 911
页数：6
相关论文
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