A subspace approach to blind space-time signal processing for wireless communication systems
作者： A.-J. van der Veen , S. Talwar , A. Paulraj
DOI: 10.1109/78.552215
关键词: Blind equalization 、 Signal processing 、 Finite impulse response 、 Interference (communication) 、 Digital radio 、 Electronic engineering 、 Digital signal 、 Equalization (audio) 、 Telecommunications 、 Multipath interference 、 Oversampling 、 Estimation theory 、 Communication channel 、 Noise reduction 、 Interference (wave propagation) 、 Computer science
摘要: The two key limiting factors facing wireless systems today are multipath interference and multiuser interference. In this context, a challenging signal processing problem is the joint space-time equalization of multiple digital signals transmitted over channels. We propose blind approach that does not use training sets to estimate channel. Instead, takes advantage spatial temporal oversampling techniques finite alphabet property determine user symbol sequences. channels with largely differing ill-defined delay spreads discussed. proposed tested on actual channel data.
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