Linear Interference Suppression and Pulse Optimization for DS-CDMA
Final rept. 15 Aug 96-24 Aug 99
NORTHWESTERN UNIV EVANSTON IL DEPT OF ELECTRICAL ENGINEERING AND COMPUTER SCIENCE
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This project is concerned with the applicability of adaptive linear interference suppression for DS-CDMA in a peer-to-peer network. This technique is robust with respect to extreme near-far power variations. The following topics have been studied 1 performance in the presence of time- and frequency-selective fading, 2 reduced-rank methods for faster convergence and tracking, 3 adaptive transmitter preprocessing for interference avoidance, 4 combined coding and interference suppression, and 5 performance in the presence of mixed rate traffic. Overall, our results indicate that adaptive linear interference suppression can be made robust with respect to time-varying channels and interference. Algorithmic enhancements which improve upon the performance in a dynamically changing environment have been proposed and evaluated.
- Radiofrequency Wave Propagation
- Radio Communications