蜂窝网络终端直通通信功率控制研究

Power control for device-to-device communication in cellular networks

随着智能用户设的普及和高速网络应用爆炸式增长,人们对移动网络的系统容量和服务质量的要求不断提高。设备到设备(D2D:Device-to-device)通信是在系统的控制下,允许终端直接通过复用网络资源并提升网络容量。D2D通信复用上行链路资源时,基站容易受到干扰,复用下行链路资源时,下行链路的用户容易受到干扰。为了构建一个高效的移动网络,通过功率控制来抑制基站或终端用户之间的干扰,以满足用户服务质量的要求。

With the popularity of intelligent user and explosive growth of high-speed networks, the requirements for system capacity and quality of service （QoS） improve continuously. Device-to-device （D2D） communication is under the control of the system, the terminal is allowed to communicate directly through multiplexing network resources and enhance network capacity. When D2D communication multiplexes the uplink resources, the base-stations are easily to be disturbed; when the downlink resources are multiplexed, the users of downlink are susceptible to interference. In order to build a high-efficient mobile network, we can meet the QoS requirements by controlling the power to suppress the interference between the base station or a terminal user.