CAJ | 학술논문

对未来无线通信系统的几种潜在的关键通信技术，如异构网络、大规模多输入多输出（M IM O ）通信、绿色通信和毫米波通信，给出了较详尽的论述与讨论。首先简要介绍了未来无线通信网络结构的异构化变化所引起的复杂干扰信号的出现及能源消耗增加问题。介绍了大规模M IM O通信技术的优点，大规模M IM O通信的研究现状与研究难点。详尽叙述了分别以频谱效率、能源效率和资源效率最大化为目标的绿色无线通信传输优化问题的解决方案。最后，给出了进一步解决频谱稀缺问题的毫米波无线通信系统的混合波束成形的方案。
대미래무선통신계통적궤충잠재적관건통신기술，여이구망락、대규모다수입다수출（M IM O ）통신、록색통신화호미파통신，급출료교상진적논술여토론。수선간요개소료미래무선통신망락결구적이구화변화소인기적복잡간우신호적출현급능원소모증가문제。개소료대규모M IM O통신기술적우점，대규모M IM O통신적연구현상여연구난점。상진서술료분별이빈보효솔、능원효솔화자원효솔최대화위목표적록색무선통신전수우화문제적해결방안。최후，급출료진일보해결빈보희결문제적호미파무선통신계통적혼합파속성형적방안。
Detailed survey and discussion on several potential key technologies are provided for the future wireless communication systems ,such as heterogeneous wireless networks ,massive multiple‐input mul‐tiple‐output (MIMO ) communications , green communications and millimeter‐wave communications . First ,the appearance of complicated interference signals and the increase of energy consumption resulted from the change of the heterogeneous structure in the future wireless communication networks are intro‐duced .Second ,the advantages ,the state‐of‐the‐art technologies and the difficulties of the massive MI‐MO are respectively analyzed .Then ,the mathematical problems of maximizing spectrum efficiency ,en‐ergy efficiency and resource efficiency are thoroughly described .Finally ,the hybrid beamforming scheme of the millimeter‐wave wireless communication system is given to deal with the lack of spectrum re‐source .