Title :
A fast decorrelating multi-user detection scheme for synchronous CDMA in AWGN channel
Author :
Tuan, H.D. ; Nam, L.H. ; Le-Ngoc, T. ; Narikiyo, T.
Author_Institution :
Dept. Electr. & Comput. Eng., Toyota Technol. Inst., Nagoya, Japan
Abstract :
A decorrelator using the traditional linear equation solution has a computational complexity O(K3) for a CDMA system with K active users. This paper introduces optimization-based decorrelating algorithms with a lower complexity O(K2). Simulation results show that the proposed algorithms can achieve the performance of the traditional decorrelator in a synchronous CDMA system on an AWGN channel.
Keywords :
AWGN channels; code division multiple access; computational complexity; decorrelation; mobile radio; multiuser detection; optimisation; AWGN channel; computational complexity; decorrelator; multiuser detection; optimization-based decorrelating algorithms; performance; simulation; synchronous CDMA system; AWGN channels; Code division multiplexing; Computational complexity; Computational modeling; Decorrelation; Equations; Interference; Linear systems; Multiaccess communication; Multiuser detection;
Conference_Titel :
Wireless Personal Multimedia Communications, 2002. The 5th International Symposium on
Print_ISBN :
0-7803-7442-8
DOI :
10.1109/WPMC.2002.1088374
