Near-Field Communication for Next-Generation Networks:Theory,Applications,and Challenges
From the electromagnetic theory,the non-negligible electromagnetic and beam characteristics of the near-field are analyzed,as well as the impact on the performance of existing communication systems.Then,using the near-field effect,several typical near-field appli-cation scenarios and how to achieve higher performance indexes are elucidated.Finally,in order to improve the capacity of near-field com-munication,several implementation methods and architectures are introduced.Two technologies of near field channel estimation are pros-pected,and the future research direction is pointed out.This study serves as a reference for future research in near-field communication.
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