Application prospects of multi-user detection technology in CDMA Application prospects of multi-user detection technology in CDMA [pic] | [pic] Tang Youxi, National Defense Key Laboratory of Anti-interference Communication Technology, University of Electronic Science and Technology of China || || || Since the arrival of 2000, the practical third-generation mobile communication system (3G) is getting closer and closer to us. As one of the enhanced technologies of TD-SCDMA, cdma2000 and WCDMA, multi-user detection technology has been increasingly valued by academia and industry. Based on the review of multi-user detection technology, this paper introduces the application prospects of multi-user detection technology in narrow-band CDMA in combination with the characteristics of narrow-band CDMA. || ||1. Multi-user detection technology || ||Since K. Schneider proposed the concept of multiple user detection (MUD) in 1979, after more than 20 years of development, especially after Verdu proposed the optimal multi-user detection algorithm in 1986, multi-user detection technology has become one of the most important academic research hotspots in the field of wireless communications. Definition of multi-user detection in CDMA system: Jointly consider all users|| or some users occupying a channel at the same time, eliminate or weaken...
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