Title :
Performance of iterative multiuser detection with a partial PIC detector and serially concatenated codes
Author :
Kim, Sunghwan ; Lee, Jae Hong
Author_Institution :
Sch. of Electr. Eng., Seoul Nat. Univ., South Korea
fDate :
6/23/1905 12:00:00 AM
Abstract :
An iterative multiuser detection scheme is proposed for a DS-CDMA system. The iterative multiuser detection has a partial parallel interference cancellation (PIC) detector and serially concatenated codes. Taking the expectation value of a coded bit, the partial PIC detector produces a metric which becomes an input to the decoders. It is shown that the proposed iterative multiuser detector has near single user performance as MAI is effectively cancelled out and a high coding gain is obtained.
Keywords :
AWGN channels; Rayleigh channels; code division multiple access; concatenated codes; convolutional codes; interference suppression; iterative methods; multiuser channels; radiofrequency interference; signal detection; spread spectrum communication; turbo codes; AWGN channel; DS-CDMA; MAI cancellation; Rayleigh fading channel; additive white Gaussian noise; convolutional code; expectation value; iterative multiuser detection; multiple access interference; partial parallel interference cancellation; serially concatenated codes; turbo code; AWGN; Concatenated codes; Convolutional codes; Detectors; Interference cancellation; Iterative decoding; Multiaccess communication; Multiple access interference; Multiuser detection; Turbo codes;
Conference_Titel :
Vehicular Technology Conference, 2001. VTC 2001 Fall. IEEE VTS 54th
Print_ISBN :
0-7803-7005-8
DOI :
10.1109/VTC.2001.956648
