CAJ | 학술논문

在将协作中继技术和认知无线电技术相融合的认知中继网络中，进一步采用大规模MIMO技术，构成大规模MIMO多用户认知中继网络，深度挖掘空间维度无线资源，从而大幅度提升频谱效率、能量效率和传输可靠性。对5G移动通信系统若干关键技术进行综述，对大规模MIMO技术、协作中继技术以及认知无线电技术这些具有代表性的技术进行介绍和梳理，重申其重要作用和意义。
재장협작중계기술화인지무선전기술상융합적인지중계망락중，진일보채용대규모MIMO기술，구성대규모MIMO다용호인지중계망락，심도알굴공간유도무선자원，종이대폭도제승빈보효솔、능량효솔화전수가고성。대5G이동통신계통약간관건기술진행종술，대대규모MIMO기술、협작중계기술이급인지무선전기술저사구유대표성적기술진행개소화소리，중신기중요작용화의의。
For cognitive relay network, in which cooperative relay and cognitive radio technologies are integrated, the adoption of massive MIMO is able to constitute massive MIMO multi-user cognitive relay network. It is beneifcial for deep development of spatial dimensional radio resources to greatly enhance spectral efifciency, energy efifciency and transmission reliability. In this paper, several key and representative technologies in 5G mobile communication system were reviewed, including massive MIMO, cooperative relay and cognitive radio, as well as their important signiifcance was analyzed in depth.