A vital challenge for 5G and beyond wireless communication system is to meet the ever-growing demand for high-speed data with massive connectivity with low latency. In this report, the research outcomes of four key technologies, namely cognitive radio, non-orthogonal multiple access in heterogeneous networks, wireless caching and massive MIMO are explored for 5G and beyond systems. The key ideas for each technology are described, followed by the proposed techniques. Simulation results corroborate the superiority of proposed techniques for next generation wireless communication systems.

中文翻译：

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研究5G和超越无线通信的四种颠覆性技术

对于5G以及无线通信系统以外的一个至关重要的挑战是，以低延迟的大规模连接来满足对高速数据不断增长的需求。在本报告中，针对5G及更高系统探索了四种关键技术的研究成果，即认知无线电，异构网络中的非正交多址访问，无线缓存和大规模MIMO。描述了每种技术的关键思想，然后介绍了所提出的技术。仿真结果证实了所提出的技术在下一代无线通信系统中的优越性。