物联网学报 ›› 2021, Vol. 5 ›› Issue (4): 54-61.doi: 10.11959/j.issn.2096-3750.2021.00243

• 理论与技术 • 上一篇    下一篇

基于MIMO的大容量LPWAN技术TurMassTM与LoRa对比

江昊1, 陈宏铭2, 曹以龙2, 崔昊杨2   

  1. 1 华中科技大学电子信息与通信学院，湖北 武汉430074
    2 上海电力大学电子与信息工程学院，上海 201306
  • 修回日期:2021-11-23 出版日期:2021-12-30 发布日期:2021-12-01
  • 作者简介:江昊（1988− ），男，华中科技大学电子信息与通信学院在站博士后，主要研究方向为大规模MIMO算法、物联网通信技术等
    陈宏铭（1975− ），男，上海电力大学电子与信息工程学院教授，主要研究方向为新一代 LPWAN 通信系统设计、无线传输芯片设计等
    曹以龙（1965− ），男，上海电力大学电子与信息工程学院教授，主要研究方向为电力电子技术应用、电能质量治理、工业自动化控制等
    崔昊杨（1978− ），男，上海电力大学电子与信息工程学院教授，主要研究方向为电力设备状态检测、电气设备红外诊断、红外探测材料与器件等

Comparison of MIMO based on high capacity LPWAN technology TurMassTM and LoRa

Hao JIANG1, Hongming CHEN2, Yilong CAO2, Haoyang CUI2   

  1. 1 School of Electronic Information and Communications, Huazhong University of Science and Technology, Wuhan 430074, China
    2 College of Electronics and Information Engineering, Shanghai University of Electric Power , Shanghai 201306, China
  • Revised:2021-11-23 Online:2021-12-30 Published:2021-12-01

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摘要：

随着低功耗广域网（LPWAN, low-power wide area network）技术的快速发展和应用，越来越多的物联网终端需要接入网络。为应对海量物联网终端随机接入带来的挑战，提出了将大规模 MIMO 免授权随机接入（MGFRA, grant-free random access with massive MIMO）技术应用到LPWAN场景中。介绍了MGFRA技术并理论分析了 MGFRA 的性能，以验证其在极低信令开销的前提下大幅提升信道接入容量的性能优势。介绍了基于MGFRA的大容量LPWAN技术TurMassTM。为展现TurMassTM在实际应用中相较于现有LPWAN技术的优势，在典型LPWAN通信场景下对TurMassTM和LoRa在信号覆盖、通信速率、网络容量、低功耗、低成本方面进行了对比。对比结果显示，与现有LPWAN技术LoRa相比，TurMassTM在信号覆盖、通信速率、网络容量、低功耗、低成本方面具有突出的优势。

关键词: 物联网, 低功耗广域网, 大规模天线, 大规模MIMO免授权随机接入

Abstract:

With the rapid development of low power wide area network (LPWAN) technologies, more and more IoT terminals need to access the network.In order to deal with the challenge of massive random access, grant-free random access with massive MIMO (MGFRA) was proposed for LPWAN scenarios.The MGFRA was introduced and the performance of MGFRA to validate its performance advantage of greatly improving the channel access capacity with extreme low signaling overhead was theoretically analyzed.Further, TurMassTMwas introduced, which is a high-capacity LPWAN technology based on MGFRA.To demonstrate the advantages of TurMassTMin practical applications, TurMassTMand LoRa in signal coverage, communication rate, network capacity, low power consumption and low cost in typical LPWAN communication scenarios were compared.The comparison results show that TurMassTMhas outstanding advantages in signal coverage, communication rate, network capacity, low power consumption and low cost compared with LoRa.

Key words: Internet of things, LPWAN, massive MIMO, MGFRA

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