Key techniques for 5G wireless communications:network architecture, physical layer,and MAC layer perspectives  

作　　者：MA Zheng ZHANG ZhengQuan DING ZhiGuo FAN PingZhi LI HengChao 

机构地区：[1]Provincial Key Lab of Information Coding and Transmission, Southwest Jiaotong University [2]Department of Communication Systems, Lancaster University

出　　处：《Science China(Information Sciences)》2015年第4期1-20,共20页中国科学（信息科学）（英文版）

基　　金：supported by National Basic Research Program of China (973 Program) (Grant No. 2012CB316100);National High-tech R&D Program of China (863 Program) (Grant No. 2014AA01A707);111 Project (Grant No. 111-2-14);Open Research Foundation of National Mobile Communications Laboratory, Southeast University (Grant No. 2011D16);Fundamental Research Funds for the Central Universities (Grant Nos. SWJTU11CX147, SWJTU11CX040)

摘　　要：The fourth generation （4G） mobile communication systems are offering service worldwide steadily. Although 4G systems could be loaded with much more services and data than previous systems, there is still a dramatic gap between the people＇s practical requirements and what can be offered by the 4G technologies. Consequently, the research and development for the fifth generation （5G） systems have already been started. This article presents an overview of potential network architecture and highlights several promising techniques which could be employed in the future 5G systems. These techniques include non-orthogonal multiple access （NOMA）, massive multiple input and multiple output （MIMO）, cooperative communications and network coding, full duplex （FD）, device-to-device （D2D） communications, millimeter wave communications, automated network organization, cognitive radio （CR）, and green communications. The state-of-art and implementation issue of these techniques are also addressed.The fourth generation （4G） mobile communication systems are offering service worldwide steadily. Although 4G systems could be loaded with much more services and data than previous systems, there is still a dramatic gap between the people＇s practical requirements and what can be offered by the 4G technologies. Consequently, the research and development for the fifth generation （5G） systems have already been started. This article presents an overview of potential network architecture and highlights several promising techniques which could be employed in the future 5G systems. These techniques include non-orthogonal multiple access （NOMA）, massive multiple input and multiple output （MIMO）, cooperative communications and network coding, full duplex （FD）, device-to-device （D2D） communications, millimeter wave communications, automated network organization, cognitive radio （CR）, and green communications. The state-of-art and implementation issue of these techniques are also addressed.

关 键 词：5G software defined network non-orthogonal multiple access massive MIMO full duplex device-to-device communications millimeter wave communications cognitive radio 

分 类 号：TN929.5[电子电信—通信与信息系统]