Journal of the Institute of Electronics Engineers of Korea TC (대한전자공학회논문지TC)

The Institute of Electronics and Information Engineers (대한전자공학회)
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CDMA/TDD system using improved sequential decoding algorithm

개선된 순차적 복호 기법을 적용한 CDMA/TDD 시스템의 성능 분석

  • Jo, Seong-Cheol (Electronics and Telecommunications Research Institute) ;
  • Gwon, Dong-Seung (Electronics and Telecommunications Research Institute) ;
  • Jo, Gyeong-Rok (Dept. of Information Communication Engineering, Chungbuk National University)
  • Published : 2002.08.01
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Abstract

In this paper, we considered the CDMA/TDD system suitable for high-speed packet data transmission such as Internet and multimedia services, and a sequential decoding scheme which enables fast decoding and retransmission requirement. In addition, we Proposed an improved FANO algorithm, which adopts the competition path in order to reduce the number of revisit nodes. The conventional FANO algorithm suffered from the drawback of much more revisit nodes. Furthermore, we analyzed the performance of the CDMA/TDD system with the sequential decoding scheme we proposed over multipath channel.

본 논문에서는 인터넷이나 멀티미디어 서비스 등 고속 패킷 전송에 적합한 CDMA/TDD 시스템과 빠른 복호 및 재전송 요구가 가능한 순차적 복호 기법에 관하여 고찰하였다. 또한 순차적 복호 기법 중 FANO 알고리즘의 단점인 재방문 횟수를 줄이기 위하여 경쟁경로를 도입하는 개선된 FANO 알고리즘을 제안하였다. 그리고 다중경로 채널에서 이러한 순차적 복호 알고리즘이 적용된 CDMA/TDD 시스템의 성능을 분석하였다.

Keywords

References

  1. M. Haardt, A. K. R. Koehn, S. Oestreich, M. Purat, V. Sommer, and T. Ulrich, 'The TDCDMA based UTRA TDD mode,' IEEE J. Select. Areas Commun., vol. 18, no. 8, pp. 1375-1385, Aug. 2000 https://doi.org/10.1109/49.864003
  2. T. Ojanpera and R. Prasad, 'An Overview of Air Interface Multiple Access for IMT-2000/UMTS,' IEEE Commun. Mag., Sept. 1998 https://doi.org/10.1109/35.714623
  3. 3GPP Technical Specification 25.221(V.4.0.0), 'Physical Channel and Mapping of Transport Channels onto Physical Channels(TDD)'
  4. J. M. Wozencraft and B. Reiffen, Sequential Decdong, MIT Press, Cambridge : Mass, 1961
  5. R. M. Fano, 'A Heuristic Discussion of Probabilistic Decoding,' IEEE Trans. Inform. Theory, vol. IT-9, pp. 64-74, Apr. 1963
  6. K. Zigangirov, 'Some Sequential Decoding Procedures,' Problemii Peredachi Informatsii, vol. 2, pp. 13-15, 1966
  7. F. Jelinek, 'Fast Sequential Decoding Using a Stack,' IBM Journal of Research and Development, vol. 13, Nov. 1969
  8. R. E. Kahn, S.A. Gronemeyer, J.Burchfiel, and R.C. Kunzelman, 'Advances in packet radio technology,' proc. of the IEEE vol. 66, pp. 1468-1496, Nov. 1978