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MPOE based prefiltering and. MRT beamforming for DS-CDMA systems

DSpace at IIT Bombay

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Title MPOE based prefiltering and. MRT beamforming for DS-CDMA systems
 
Creator KANNAN, G
GARG, M
MERCHANT, SN
DESAI, UB
 
Description In order to reduce the complexity of the mobile receiver, we propose a prefilter model using a linear FIR prefilter for minimizing the Probability of Error (MPOE) in Multiuser transmission scenario. We consider downlink transmission and assume complete knowledge of the channel at the base station. In order to fully utilise the knowledge available at the transmitter, the filter weights are computed conditioned on the transmitted bit vector sequence. This makes the computation of the optimal coefficients linear in the number of users as opposed to the exponential complexity otherwise. Weights of FIR prefilter are computed by minimizing the conditional Probability of Error (MPOE) and the Mean Square Error (MMSE). To improve the performance further in multipath fading environment, we consider Maximum Ratio Transmission (MRT) beamforming at the base station. Simulation results are provided to illustrate the performance of the proposed system model.
 
Publisher IEEE
 
Date 2011-10-26T11:59:26Z
2011-12-15T09:12:19Z
2011-10-26T11:59:26Z
2011-12-15T09:12:19Z
2006
 
Type Proceedings Paper
 
Identifier 2006 IEEE ASIA PACIFIC CONFERENCE ON CIRCUITS AND SYSTEMS,1188-1191
978-1-4244-0386-8
http://dspace.library.iitb.ac.in/xmlui/handle/10054/16001
http://hdl.handle.net/100/2600
 
Source IEEE Asia Pacific Conference on Circuits and Systems,Singapore, SINGAPORE,DEC 04-07, 2006
 
Language English