Cyclostationary Cochannel Interference Cancellation by Space-time Fractionally-spaced MMSE-DFE for Digital Cellular Mobile Radios

• Main Authors: Chi-Wei Wu, 吳旗偉
• Other Authors: Sheng-Chou Lin
• Format: Others
• Language: zh-TW
• Published: 2010
• Online Access: http://ndltd.ncl.edu.tw/handle/82678485308642172001

碩士 === 輔仁大學 === 電子工程學系 === 98 === This paper presents the analysis of the accurate performance for the joint equalizer and diversity receiver with fractionally spaced decision-feedback equalizer (FSDFE) based on the minimum mean-square-error (MMSE) to eliminate cyclostationary cochannel interference (CCI) over a fading channel. The receiver uses a feedforward filter (FFF) having fractional tap spacing on each diversity path to eliminate precursive and CCI, when leaving the combined, postcursive intersymbol interference (ISI) to be mitigated by the symbol-spaced feedback filter (FBF). In calculating the average error probability for each fading channel is calaulated fast and accurately using Gaussian quadrature rules (GQR) which can approximate the probability density function of the combined output with ISI and CCI.