作者：Kasturi Vasudevan Surendra Kota Lov Kumar Himanshu Bhusan Mishra
实现高比特率是5G及其他无线技术的主要目标。这转化为在发射机和接收机处使用大量天线（单用户大规模多输入多输出或SU-MMIMO）来获得高频谱效率。由于天线尺寸较小，移动手机中可能有大量天线，毫米波频率在30美元至300美元千兆赫之间。在这项工作中，我们研究了SU-MMIMO在两种情况下的误码率（BER）性能：（a）在不相关信道中使用串行级联turbo码（SCTC）；（b）在相关信道中并行级联turbo码。计算机仿真结果表明，误码率对重传和发射天线和接收天线数量的广泛变化非常不敏感。此外，在512个发射和接收天线（512美元
Achieving high bit rates is the main goal of wireless technologies like 5G and beyond. This translates to obtaining high spectral efficiencies using large number of antennas at the transmitter and receiver (single user massive multiple input multiple output or SU-MMIMO). It is possible to have a large number of antennas in the mobile handset at mm-wave frequencies in the range $30 – 300$ GHz due to the small antenna size. In this work, we investigate the bit-error-rate (BER) performance of SU-MMIMO in two scenarios (a) using serially concatenated turbo code (SCTC) in uncorrelated channel and (b) parallel concatenated turbo code (PCTC) in correlated channel. Computer simulation results indicate that the BER is quite insensitive to re-transmissions and wide variations in the number of transmit and receive antennas. Moreover, we have obtained a BER of $10^{-5}$ at an average signal-to-interference plus noise ratio (SINR) per bit of just 1.25 dB with 512 transmit and receive antennas ($512\times 512$ SU-MMIMO system) with a spectral efficiency of 256 bits/transmission or 256 bits/sec/Hz in an uncorrelated channel. Similar BER results have been obtained for SU-MMIMO using PCTC in correlated channel. A semi-analytic approach to estimating the BER of a turbo code has been derived.
论文链接：http://arxiv.org/pdf/2303.13309v1
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