面向多跳 MIMO 中继的超可靠低时延短包通信
信息论
2021-12-21 v1 信号处理
math.IT
摘要
本工作考虑短包通信下的多跳多输入多输出(MIMO)中继网络,以促进超可靠和低时延通信。我们假设发送端采用发射天线选择(TAS)方案,而接收端采用选择合并(SC)或最大比合并(MRC)以获得分集增益。对于准静态瑞利衰落信道和有限块长度体制,我们推导了 TAS/MRC 和 TAS/SC 方案端到端(e2e)块错误率(BLER)的近似闭式表达式。推导了高信噪比体制下的渐近性能,由此给出了 TAS/MRC 与 TAS/SC 方案在分集阶数、e2e BLER 损失和 SNR 间隙方面的比较。还分析了所考虑方案的 e2e 时延与吞吐量。通过蒙特卡洛仿真确认了我们分析的正确性。
引用
@article{arxiv.2112.10529,
title = {Ultra-Reliable and Low-Latency Short-Packet Communications for Multihop MIMO Relaying},
author = {Ngo Hoang Tu and Kyungchun Lee},
journal= {arXiv preprint arXiv:2112.10529},
year = {2021}
}
备注
submitted to IEEE International Conference on Communications 2022 (Conference version of IEEE Transactions on Wireless Communications paper), Short-packet communication, ultra-reliable and low-latency communications (uRLLCs), multihop relaying, multiple-input multiple-output (MIMO), transmit and receive diversity