Low complexity space-time multiuser detectors
作者： E.N. Onggosanusi , A.M. Sayeed , B.D. Van Veen
关键词: Real-time computing 、 Base station 、 Wireless 、 Communication channel 、 Adaptive filter 、 Computer engineering 、 Radio receiver 、 Multiuser detection 、 Computer science 、 Detector 、 Reduction (complexity) 、 Code division multiple access 、 Spread spectrum
摘要: A design framework for space-time multiuser detectors is introduced based on the notion of canonical coordinates (CSTC). The CSTC system employs a fixed set basis signals which eliminates need estimating direction arrivals (DOAs) and delays channel, thereby allowing significant reduction in receiver complexity. proposed hybrid structure detection combines power centralized processing flexibility decentralized reception. In first stage, subset users whose spreading codes are assumed known suppressed fashion. remaining interference via second stage an adaptive mode. scheme offers flexible by offering lower complexity compared to fully receivers improved performance schemes.
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