Publication date: Available online 27 May 2015
Source:Physical Communication
Author(s): Meher Krishna Patel , Stevan M. Berber , Kevin W. Sowerby
This paper presents the theoretical analysis of adaptive multiuser RAKE receiver scheme in frequency selective fading channel for direct-sequence code division multiple access (DS-CDMA) system. Least mean square (LMS) algorithm is used to estimate the channel coefficients. Chaotic sequences are used as spreading sequence and corresponding bit error rate (BER) in closed form is derived for imperfect channel estimation conditions. Performances of chaotic sequences are compared with pseudorandom noise (PN) sequences. Under perfect synchronization assumption, various simulation results are shown to investigate the performance of the proposed system.
Source:Physical Communication
Author(s): Meher Krishna Patel , Stevan M. Berber , Kevin W. Sowerby
