Golden Modulation:一种面向大规模物联网的新型高效波形
Golden Modulation: a New and Effective Waveform for Massive IoT
AI总结:
针对大规模物联网在海量用户接入中的干扰与同步难题,本文提出异步扩频调制 Golden Modulation,利用直接 Zadoff-Chu 序列实现低互干扰、无协调的高容量多用户传输,并推导和仿真验证其 AWGN 误码性能。
摘要:
本文研究大规模物联网系统,尤其是低功耗广域网,其目标是连接数十亿个具有多年电池寿命要求的低成本设备。当前的大规模物联网系统在试图实现服务海量用户这一目标时暴露出严重问题。本文提出一种名为 Golden Modulation 的新型异步扩频调制。该调制提供了一个庞大的等价波形族,即使在异步条件下也具有极低的互干扰,因此能够实现天然的多用户运行,无需用户间同步,也无需采用干扰消除接收机。得益于波形之间的最小干扰以及无协调需求,该调制可支持极高的系统容量。文中介绍了基于通过直接 Zadoff-Chu 序列调制进行频谱扩展的基本调制原理,推导了其在加性高斯白噪声信道中的理论误比特率性能,并通过仿真与实际 Golden Modulation 接收机性能进行比较。本文还描述了 Golden Modulation 的解调,并刻画了其在存在非协调多用户情况下的性能。
英文摘要:
This paper considers massive Internet of Things systems, especially for LoW Power Wide Area Networks, that aim at connecting billions of low-cost devices with multi-year battery life requirements. Current systems for massive Internet of Things exhibit severe problems when trying to pursue the target of serving a very large number of users. In this paper, a novel asynchronous spread spectrum modulation, called Golden Modulation, is introduced. This modulation provides a vast family of equivalent waveforms with very low cross-interference even in asynchronous conditions, hence enabling natural multiuser operation without the need for inter-user synchronization or for interference cancellation receivers. Thanks to minimal interference between waveforms, coupled with the absence of coordination requirements, this modulation can accommodate very high system capacity. The basic modulation principles, relying on spectrum spreading via direct Zadoff-Chu sequences modulation, are presented and the corresponding theoretical bit error rate performance in an additive white Gaussian noise channel is derived and compared by simulation with realistic Golden Modulation receiver performance. The demodulation of the Golden Modulation is also described, and its performance in the presence of uncoordinated multiple users is characterized.
机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。