Performance Analysis of Time-modulated Array in Digital Communication System

摘要

In this paper, a simple time-modulated array (TMA) whose elements are excited sequentially is studied in multiuser and physical layer secure wireless communication system. On a theoretical level, some significant details are discussed. For multiuser wireless communication, in order to avoid aliasing of the spectrum, the time modulation frequency must be greater than the bandwidth of baseband signal. However, take advantage of the aliasing of the spectrum, TMA can be used in secure wireless communication. Some numerical results are given to verify the feasibility of TMA from time domain.