Adaptive power control and MMSE interference suppression
Date
1998Source Title
Wireless Networks
Print ISSN
10220038
Volume
4
Issue
6
Pages
489 - 496
Language
English
Type
ArticleItem Usage Stats
163
views
views
90
downloads
downloads
Abstract
Power control algorithms assume that the receiver structure is fixed and iteratively update the transmit powers of the users to provide acceptable quality of service while minimizing the total transmitter power. Multiuser detection, on the other hand, optimizes the receiver structure with the assumption that the users have fixed transmitter powers. In this study, we combine the two approaches and propose an iterative and distributed power control algorithm which iteratively updates the transmitter powers and receiver filter coefficients of the users. We show that the algorithm converges to a minimum power solution for the powers, and an MMSE multiuser detector for the filter coefficients.
Keywords
Adaptive algorithmsAdaptive control systems
Error analysis
Interference suppression
Iterative methods
Minimum mean squared error (MMSE) detectors
Wireless telecommunication systems