摘要
D2D(device-to-device)通信由于直通链路距离短,可以带来信道增益、复用增益和跳数增益,对提高蜂窝网络的频谱效率和能量效率有很大帮助。同时同频收发的全双工通信可提升D2D通信的性能,被广泛认为是下一代蜂窝网络的关键技术之一。首先概述了全双工D2D通信的特点,结合未来5G通信系统的需求阐明了其重要性并介绍了其主要应用;然后论述了全双工D2D通信资源分配的研究现状和存在问题;最后,探讨了全双工D2D通信的未来研究方向并进行了总结。
Due to the physical proximity, D2D communications can bring proximity gain, reusing gain and hop gain, and thus can potentially increase system spectral-efficiency and energy-efficiency. Full-duplex D2D communications, which enable the transceiver to simultaneously transmit and receive in the same band, can further improve the system performance. Therefore, full-duplex D2D communications has being considered as one of the key techniques in the next generation cellular networks. The features of full-duplex D2D communications and the significance in 5G systems were briefly introduced as well as its applications. Then, the state-of-art research on full-duplex D2D resource allocation was presented and discussed. Finally, some research topics that deserve further study was outlined and concluded.
作者
丁家昕
冯大权
钱恭斌
张楠
DING Jiaxin;FENG Daquan;QIAN Gongbin;ZHANG Nan(The State Radio Monitoring Center, Beijing 100037, China;Shenzhen University, Shenzhen 518060, China)
出处
《电信科学》
2018年第5期107-114,共8页
Telecommunications Science
基金
国家自然科学基金资助项目(No.61701317)
广东省自然科学基金资助项目(No.2017A030310371)
深圳市基础研究项目(No.JCYJ20170302150006125)~~
关键词
D2D通信
全双工通信
频谱共享
干扰管理
资源分配
D2D communication
full-duplex communication
spectrum sharing
interference management
resource allocation