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近些年来,我国移动通信技术得到较大的发展,移动通信技术对数据传输速率也提出更高的要求。然而,移动通信技术可使用的频谱资源极少。并且,移动通信技术对频谱资源的利用效率较低。D2D通信技术能使通信系统的资源利用率及数据传输速率得到提高,同时,能使用户终端的发射功率减小。对此,本文就D2D通信系统的工作模式的选择进行研究。
In recent years, the mobile communication technology in our country has been greatly developed, and the mobile communication technology has put forward higher requirements on the data transmission rate. However, there are very few spectrum resources available for mobile communication technologies. In addition, mobile communication technology is inefficient in utilizing spectrum resources. The D2D communication technology can improve the resource utilization rate and the data transmission rate of the communication system, and at the same time, can reduce the transmission power of the user terminal. In this regard, this paper studies the choice of the working mode of D2D communication system.