MIMO无线通信系统的统一建模  

Unified Transmission Model for Multiple-Input Multiple-Output Wireless Systems

作　　者：伍裕江[1] 聂在平[1] 

机构地区：[1]电子科技大学电子工程学院

出　　处：《系统仿真学报》2008年第4期1036-1040,共5页Journal of System Simulation

基　　金：国家“863”计划资助项目(2002AA123032)

摘　　要：提出一种统一的多天线通信系统传输模型,该模型将收发间通道分为电路、近场区和远场区三部分,通过广义欧姆定律联系电路和近场参数,利用基于矩量法的广义阻抗矩阵精确描述多天线和近场区参数,通过基于远场近似的无线信道模型联系收发端的远区场;给出不同近场环境下的仿真结果,并在此基础上详细研究了天线互耦、失配和近区散射体对系统性能的影响,与已有结果进行了比较,分析了异同处。A unified Multiple-Input Multiple-Output （MIMO） transmission model, which may be decomposed into transceiver circuit model, near-field region model and far-field region model, was proposed. This proposed model used the moment methods to simulate the near-field environment accurately; and applied generalized matrix Ohm＇s law to connect the near field and circuit model; while employed the classical wireless channel model based on far-field approximation to connect the far-fields of the multi-antenna in transmitter and receiver respectively. Different near-field environments were investigated, and comparisons were made with the existed approaches.

关 键 词：MIMO系统 传榆模型 矩量法 互耦 

分 类 号：TN911.2[电子电信—通信与信息系统]