NDLI: Joint Demodulation in DS/CDMA Systems Exploiting the Space and Time Diversity of the Mobile Radio Channel (1997)

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Joint Demodulation in DS/CDMA Systems Exploiting the Space and Time Diversity of the Mobile Radio Channel (1997)

Content Provider	CiteSeerX
Author	Dahlhaus, Dirk Jarosch, Andreas Fleury, Bernard H. Heddergott, Ralf
Description	A demodulation algorithm for a base station receiver in a direct sequence (DS) spread spectrum code division multiple access (CDMA) communication system is proposed which performs joint multiuser detection and estimation using the output signals of an antenna array in the absence of a tight power control. The scheme is a combination of a multistage (MS) detector for data recovery and a space-alternating generalized expectationmaximization (SAGE) algorithm for channel parameter estimation. Monte-Carlo simulations show that the scheme is able to overcome the near-far problem while simultaneously combining the signal energy spread over time and space in a nearly optimum fashion. 1 Introduction It is a well-known fact that the use of an antenna array can significantly increase the capacity of the reverse link in a cellular code division multiple access (CDMA) mobile radio system [1]. Several characteristics of the channel limit the performance of a conventional RAKE receiver with only one... in Proc. IEEE Int. Symp. on Personal Indoor and Mobile radio Communications
File Format	PDF
Language	English
Publisher Date	1997-01-01
Access Restriction	Open
Subject Keyword	Demodulation Algorithm Antenna Array Near-far Problem Time Diversity Well-known Fact Data Recovery Several Characteristic Reverse Link Base Station Receiver Space-alternating Generalized Expectationmaximization Direct Sequence Mobile Radio System Spectrum Code Division Multiple Access Signal Energy Spread Joint Demodulation D Cdma System Exploiting Joint Multiuser Detection Conventional Rake Receiver Channel Parameter Estimation Tight Power Control Optimum Fashion Cellular Code Division Multiple Access Output Signal Mobile Radio Channel Monte-carlo Simulation Communication System
Content Type	Text
Resource Type	Article

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