Performance Analysis of MRT-MIMO OFDM System in the Presence of ICI-like CCI

• Main Authors: Zong-Ying He, 何宗穎
• Other Authors: Sheng-Chou Lin
• Format: Others
• Language: zh-TW
• Published: 2015
• Online Access: http://ndltd.ncl.edu.tw/handle/54172491814020383960

碩士 === 輔仁大學 === 電機工程學系碩士班 === 103 === This paper discusses the performance analysis of orthogonal frequency division multiplexing (OFDM) using maximum ratio transmission (MRT) in multiple-input multiple-output (MIMO) systems suffering from co-channel interference (CCI). Both of the desired signal and co-channel interference use quadrature amplitude modulation operating in a frequency-selective fading channel. The carrier frequency offset (CFO) of the desired signal is assumed to be compensated, but the carrier frequency offset (CFO) of CCI cannot, thus leading to an effect similar to inter-carrier interference (ICI-like) at the receiver. We explore inter-carrier interference (ICI) produced by frequency offset and its impact on the system. In some literature, this is created by non-co-channel interference. Our simulation analysis considers accurate co-channel interference model. Moreover, one and more co-channel interference sources are taken into account in comparison with the Gaussian co-channel interference model. From the simulation results we can analyze and understand more clearly the ICI created by CCI and its impact on MIMO system under whether there is the effect from CFO.