상세정보
학술지
A multiuser receiver for trellis-coded DS/CDMA systems in asynchronous channels
- 저자
- 김광순, 송익호, 김홍길, 김윤희, 김선용
- 발행일
- 200005
- 출처
- IEEE Transactions on Vehicular Technology, v.49 no.3, pp.844-855
- ISSN
- 0018-9545
- 출판사
- IEEE
- 협약과제
- 00MR2700, IMT-2000 기지국 신호처리기술 연구, 채종석
- 초록
- In this paper, we propose and analyze a multiuser receiver using a decorrelating filter and Viterbi decoders for trellis-coded direct-sequence code-division multiple-access (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 with emphasis on the asymptotic cases: it is shown that the proposed system provides us with some coding gain and near-far resistance. It is confirmed that we can enhance the performance of the proposed system by using base-station antenna arrays. © 2000 IEEE.
- KSP 제안 키워드
- Asynchronous channels, CDMA systems, Code division Multiple Access(CDMA), Coding Gain, Direct-sequence(DS), Direct-sequence code-division multiple-access(DS-CDMA), Trellis-Coded, antenna array, base station(BS), base station antenna, multiuser receiver