LTE-Advanced CoMP中自适应动态小区选择方案
李彬;宋高俊;曹绍龙
【期刊名称】《通信技术》 【年(卷),期】2013(000)010
【摘要】In order to improve the performance of the cell-edge use rand meet the requirement of cell-edge spectral efficiency, CoMP ( Coordinated Multi-Point) transmission technology is introduced in the LTE-Advanced system. This paper proposes a novel downlink coordinative algorithm, which could firstly deter-mine the type of network users, and then select a cooperation set for the cell-edge users. This algorithm, with SINR ( Signal-to- Interference plus Noise Ratio) threshold for adaptive determination of cooperative-cell number, could effectively avoid the unnecessary cooperation and reduce information transmission bur-den of the system. Simulation results show that compared with the existing schemes, the proposed scheme could significantly raise the cooperative efficiency and reduce the information transmission burden of be-tween the base stations of coordination.%为了提高小区边缘用户的性能,满足小区边缘频谱效率的要求,LTE- Advanced系统中引入了协作多点传输技术( CoMP,Coordinated Multi- Point transmission)。提出一种新的下行协作方案,该算法首先判定网络中的用户类型,其次为小区边缘用户选择协作集合。此方案利用信干噪比( SINR, Signal- to- Interference plus Noise Ratio)阈值自适应的确定协作小区的数量,能有效避免
LTE-Advanced CoMP中自适应动态小区选择方案
