Coordinated Multi-Point Transmission/Reception Research And Simulation In LTE-A Dvanced System

The introduction of the concept of cellular work in the Public Land Mobile network has greatly improved the spectral efficiency by reusing the frequency resource in different cells. But the edge of a certain cell is located between its neighboring cells, thus the UEs(user equipment) in the area will not only receive weak signal from its serving cell, but also suffer from great interference from its neighboring cells, which will result in low SINR(signal-to-interference and noise-ratio) and small cover range of the network.As a key physical aspect technology in LTE-A(Long Term Evolution-Advance), CoMP(Coordinated Multi-Point Transmission and Reception) is adopted to improve both the edge UEs’throughput and the average throughput of the cell, in the way of introducing the cooperation transmission to reduce or even mitigate the co-channel interference.This thesis was focused on study CoMP schemes which were feasible on the real network scenarios. The key achievements can be summarized as follows:Ⅰ. Described the basic content and research background from a lot of academic literatures and 3GPP (The 3rd Generation Partnership Project) documents, analyzed the existing achievement in CoMP. Promoted frames of CoMP, mainly on the cell selection and resource allocation.Ⅱ. Implemented up a simulation platform for LTE-A CoMP, designed and built the edge-user determine module, the cooperating cells selection module, the cooperating resource allocation module and the joint processing function. The simulation platform is based on object-oriented programming, with good applicability and extensible. The result of the simulation platform is equal with 3 GPP Technology Report.Ⅲ. Proposed a dynamic cooperating resource allocation scheme and a multi-objective cooperating cells selection scheme, and an adaptive multi-point transmission method which could ensure the quality of service. The simulation results showed that all the proposed schemes and method improve the average spectral efficiency and cell-edge UEs’ spectral efficiency with limited complexity and less signaling overhead.