Iterative near---far resistant channel estimation by using a linear minimum mean squared error detector

Authors:
Ahmet Rizaner;Hasan Amca;Kadri Hacıoğlu;Ali Hakan Ulusoy;Ansgar Scherb
Affiliations:
Department of Information Technology, School of Computing and Technology, Eastern Mediterranean University, Mersin 10, Turkey;Department of Information Technology, School of Computing and Technology, Eastern Mediterranean University, Mersin 10, Turkey;University of Colorado at Boulder Center for Spoken Language Research Boulder, Boulder, USA 80309;Department of Information Technology, School of Computing and Technology, Eastern Mediterranean University, Mersin 10, Turkey;Department of Communications Engineering, University of Bremen - FB1, Bremen, Germany D-28334
Venue:
Wireless Personal Communications: An International Journal
Year:
2007

Citing 2
Cited 1

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An adaptive least squares channel estimation based on conjugate gradient approach for multipath fading CDMA systems

Computers and Electrical Engineering

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Abstract

Channel estimation techniques for CDMA system need to combat multiple access interference (MAI) to improve the estimation performance. The linear MMSE detector has certain advantages with respect to the near---far problem and can be used to develop a channel estimation algorithm. In this paper, an efficient iterative method for near---far resistant single-user mobile radio channel estimation in slow fading multi-path direct sequence code division multiple access (DS-CDMA) channels is presented. Computer simulation results demonstrate that a significant performance improvement can be achieved with the proposed method especially under extreme near---far conditions.