MIMO无线通信系统的统一建模

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。

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

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.