CAJ | 학술논문

更快的传输速率,更优的传输质量永远是无线通信追求的目标。然而无线通信可使用的频带带宽是有限的,通信系统的发射功率上限也不能无限制的增长,随着用户需求的不断膨胀,性能更优的通信技术迫在眉睫。多输入多输出（MIMO）无线通信技术,在发射端与接收端同时装配多条射频链路,通过将空间信息引入到通信系统中,系统的传输速率及传输质量都得到了大幅度的提高。然而随着射频链路的增加,系统的硬件复杂度及信号处理的软件复杂度都呈指数增加。如何有效的减小系统实现复杂度且提高系统性能成为目前鱼待解决的问题。本文提出的MIMO快速接收天线选择算法在降低系统实现复杂度的同时可以有效的保证系统性能,使系统性能得到很大改善。
경쾌적전수속솔,경우적전수질량영원시무선통신추구적목표。연이무선통신가사용적빈대대관시유한적,통신계통적발사공솔상한야불능무한제적증장,수착용호수구적불단팽창,성능경우적통신기술박재미첩。다수입다수출（MIMO）무선통신기술,재발사단여접수단동시장배다조사빈련로,통과장공간신식인입도통신계통중,계통적전수속솔급전수질량도득도료대폭도적제고。연이수착사빈련로적증가,계통적경건복잡도급신호처리적연건복잡도도정지수증가。여하유효적감소계통실현복잡도차제고계통성능성위목전어대해결적문제。본문제출적MIMO쾌속접수천선선택산법재강저계통실현복잡도적동시가이유효적보증계통성능,사계통성능득도흔대개선。
The aim of wirless communication will continue to be faster and better. However, the frequency band of the wirless communication system is limited, and also the transmit power can not be as large as we want it to be. As the user＇s requirement for the quality of serverice increase with the aim of better life, the communication technologies which can improve the performance of the communication systems notably are starved foe The wirless communication technology named Multiple Input Multiple Output（MIMO）, which equipped with multiple RF chains both at the transmitter and receive~ Because of the space variables inducted by this technology , the system throughput and service quality can be improved notably. Howeve~ with the increase of RF chains, the hardware and signal processing complexity of the system increase exponentially which makes the system realization difficult. How to decrease the system realization complexity while remain the system performance is now an urgent problem for solution. In this paper fast antenna selection criterion of MIMO applied makes the MIMO systems realization complexity will be simplified while the system performance can be maintained, the performance of the MIMO system can be improved largely.