基于LTE—Advanced的协作通信系统模型分析与研究

针对LTE—Advanced（LTE—A）的高性能、协作通信在增大覆盖范围等方面的优势、MIMO技术在移动终端实现的局限性等，提出了一种基于LTE—A并采用扩展的空间信道模型（SCME）法来描述的协作通信系统模型。基于3GPP定义的Case3（郊区）场景，针对Rican衰落传播环境，对该协作通信系统模型的性能进行了研究。充分考虑了每小区中继站节点参数配置、中继站的部署及发射功率的分配对系统性能的影响，并进行了仿真。且仿真结果表明：基于LTE—A的通信系统模型中所采用的中继技术能实现系统更好的性能。

A Study and Analysis on the Model of the Cooperative Communication Based on LTE-Advanced Technology

For the high-performance of the LTE-Advanced, the advantages of cooperation communication in increasing coverage, the limitations of MIMO technology in mobile terminal, a cooperation communication system model based on LTE-A described by the ex- pansion channel model （SCME） method was provided. In Case3 （suburb） scene defined on the 3GPP, for Rican fading propagation en- vironment, the performance of cooperative communication system model were studied. The parameters of this communication system model such as the number of relay node in per cell, the location of the relay node, and the transmit power allocation were all consid- ered. And their impacts on system performance were simulated. And, the simulation results show that： the cooperative relay technology using in the communication system model based on the LTE-A can achieve better performance.