CAJ | 학술논문

认知网络作为一种能够提高有限频谱资源利用率的颇具应用前景的技术,可从根本上缓解日益严重的频谱资源紧张问题,已成为无线通信领域内的一个研究热点,并受到越来越多的关注。本文介绍了认知网络的概念,并从认知网络频谱感知方面综述了现有的研究成果,讨论了目前存在的问题和进一步研究的方向。
인지망락작위일충능구제고유한빈보자원이용솔적파구응용전경적기술,가종근본상완해일익엄중적빈보자원긴장문제,이성위무선통신영역내적일개연구열점,병수도월래월다적관주。본문개소료인지망락적개념,병종인지망락빈보감지방면종술료현유적연구성과,토론료목전존재적문제화진일보연구적방향。
As a way to improve the utilization of the limited spectrum resources,Cognitive network has the wide applied prospects of the technology and can fundamentally alleviate the increasingly serious problem of a shortage of spectrum resources. So it has become a hot research topic in wireless communications field and is paid more and more attention.This paper introduces the concept of cognitive networks,reviews existing research from spectrum sensing, elaborates the current problems and further research.