基于智能反射面的设备间通信系统速率分析

Rate analysis of device-to-device communication system based on reflecting intelligent surface

以通用形式对基于智能反射面(RIS)的设备到设备(D2D)通信系统进行建模,推导出用户的可达速率,获得系统的总速率.当发送方的发射功率足够大时,进行系统的速率分析.仿真实验表明:在瑞利信道条件下,随着用户发射功率的增加,系统总速率近似值与理论值之间的误差不超过3%.

In this paper,firstly the device-to-device(D2D)communication system model based on the reflective intelligent surface(RIS)was established in a general form,from which the user’s achievable rate was derived and the total rate of the system was obtained.Then the rate of the system was analysed when the transmitting power was high enough.The simulating experiments showed that with the increase of user transmit power,the error of the system total rate between the approximate value and the theoretical value did not exceed 3%under Rayleigh channel condition.