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

Zheng Ma, Zheng Quan Zhang, Zhi Guo Ding, Ping Zhi Fan, Heng Chao Li

Research output: Contribution to journalReview articlepeer-review

186 Scopus citations

Abstract

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.

Original languageBritish English
JournalScience China Information Sciences
Volume58
Issue number4
DOIs
StatePublished - Apr 2015

Keywords

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

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