Technical Program

Paper Detail

Paper:DSP-L17.2
Session:Detection and Estimation
Time:Wednesday, May 26, 16:18 - 16:36
Presentation: Lecture
Topic: Digital Signal Processing: Detection and Estimation
Title: ITERATIVE MAP MULTI-USER DETECTION OF SYNCHRONOUS CDMA WITH CHANNEL DISTORTION
Authors: Shannon Blunt; Naval Research Laboratory 
 Dominic K. C. Ho; University of Missouri-Columbia 
Abstract: This paper proposes an iterative algorithm for multi-user detection of a synchronous CDMA communication system in the presence of channel distortion based on maximum a posteriori (MAP) estimation. The proposed algorithm employs the known finite alphabet of discrete symbols as a priori information to improve symbol estimation accuracy. The paper extends our previous work [1,2] to develop a MAP estimator that takes into account both the structure of the particular symbol constellation and the transmission diversity resulting from channel distortion to increase dramatically the accuracy of multi-user symbol estimation.
 
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