LTE-A系统协作多点传输技术的性能分析和算法研究

作为控制邻小区干扰的一种有效手段,LTE-A系统下的协作多点传输技术成为近年来研究的热点之一。给出了协作传输系统的模型并对接收信号检测以及信噪比的计算进行了分析,提出了一种新颖的基于分布式数据流的多用户协作机制。以LTE系统单用户MIMO、多用户MIMO为参照,仿真了LTE-A系统单用户协作、多用户协作的传统机制和分布式数据流机制的的性能,并通过比较得出了新机制在吞吐量性能以及公平性方面的优势。

Analysis of Performance and Algorithm on CoMP in LTE-Advanced System

Coordinated multiple point transmission and reception（CoMP）in LTE-A system has drawn a great interest as an effective technique for elimi- nating inter-cell interference in recent years. In this paper, we introduce a CoMP system model and analyze the detection method of received signal. A novel multi-user coordination scheme based on the distributed data streams is proposed. Using SU-MI-MO and MU-MIMO in LTE system as baselines, we evaluate the performances of SU-CoMP, the tradi-tional scheme and the distributed data streams scheme for MU-CoMP, and investigate the significant advantages in throughput and fairness achieved with the novel scheme.