Title :
A linear front end for iterative soft interference cancellation and decoding in coded CDMA
Author :
Tarable, A. ; Montorsi, G. ; Benedetto, S.
Author_Institution :
Politecnico di Torino, Italy
Abstract :
A new suboptimal turbo receiver for coded CDMA is presented. The user-separating front-end of this receiver has been thought of as the extension of linear multiuser detectors to an iterative structure. The complexity of this receiver is shown to be O(K), where K is the number of users. Simulations show that, for sufficiently high signal-to-noise ratios, the linear-US receiver tends to single-user performance
Keywords :
AWGN channels; code division multiple access; computational complexity; interference suppression; iterative decoding; least mean squares methods; multiuser channels; radio receivers; radiofrequency interference; signal detection; turbo codes; AWGN channel; code-division multiple access; coded CDMA; high SNR; high signal-to-noise ratio; iterative decoding; iterative soft interference cancellation; iterative structure; linear MMSE transformation; linear front end; linear multiuser detectors; matched filter outputs; receiver complexity; simulations; single-user performance; suboptimal turbo receiver; user-separating front-end; AWGN channels; Amplitude modulation; Binary phase shift keying; Covariance matrix; Detectors; Interference cancellation; Iterative decoding; Multiaccess communication; Signal to noise ratio; Transmitters;
Conference_Titel :
Communications, 2001. ICC 2001. IEEE International Conference on
Conference_Location :
Helsinki
Print_ISBN :
0-7803-7097-1
DOI :
10.1109/ICC.2001.936261
