Title :
A decorrelating multiuser receiver for DS/CDMA systems using TCM
Author :
Kwang Soon Kim ; Hong Gil Kim ; Iickho Song ; So Ryoung Park ; Seok Ho Yoon ; Hyung-Myung Kim
Author_Institution :
Dept. of Electr. Eng., Korea Adv. Inst. of Sci. & Technol. (KAIST), Daejeon, South Korea
Abstract :
In this paper, we propose and analyze a multiuser receiver using a decorrelating filter and Viterbi decoders for trellis coded DS/CDMA systems with biorthogonal signal constellation in asynchronous channels. The biorthogonality is implemented by user signature waveforms and the decorrelating filter. The performance of the proposed system is investigated: it is shown that the proposed system can provide us with some coding gain and near-far resistance.
Keywords :
Viterbi decoding; channel coding; code division multiple access; decorrelation; filtering theory; radio receivers; spread spectrum communication; trellis coded modulation; wireless channels; TCM; Viterbi decoder; asynchronous channel; biorthgonal signal constellation; decorrelating filter; decorrelating multiuser receiver; multiuser receiver analysis; signature waveform; trellis coded DS-CDMA system; Convolutional codes; Decoding; Decorrelation; Filter banks; Matched filters; Multiaccess communication; Receivers;
Conference_Titel :
Signal Processing Conference (EUSIPCO 1998), 9th European
Conference_Location :
Rhodes
Print_ISBN :
978-960-7620-06-4
