Title :
Iterative multiuser detection with Gauss-Seidel soft detector as first stage for asynchronous coded CDMA
Author :
Qin, Z. ; Teh, K.C.
Author_Institution :
Sch. of Electr. & Electron. Eng., Nanyang Technol. Inst., Singapore
fDate :
11/9/2000 12:00:00 AM
Abstract :
A new iterative detection and decoding structure for asynchronous convolutionally coded and turbo coded CDMA is proposed. The new scheme is based on the combination of Gauss-Seidel soft detection and parallel interference cancellation. The complexity of the new scheme is linear to the number of users. It is shown that for a heavily loaded system, near-optimal performance can be obtained
Keywords :
code division multiple access; convolutional codes; interference suppression; iterative decoding; multiuser channels; signal detection; turbo codes; Gauss-Seidel soft detector; asynchronous coded CDMA; convolutionally coded CDMA; heavily loaded system; iterative decoding structure; iterative multiuser detection; linear complexity; near-optimal performance; parallel interference cancellation; turbo coded CDMA;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20001331
