Performance Analysis of Multicarrier Code Selection CDMA System for PAPR Reduction in Multipath Fading Channel

PAPR을 줄이기 위한 Multicarrier Code Select CDMA시스템의 다중 경로 페이딩 채널에서 성능 분석

  • 류관웅 (영남대학교 정보통신공학과 이동통신 연구실) ;
  • 박용완 (영남대학교 정보통신공학과 이동통신 연구실) ;
  • 홍인기 (경희대학교 전자정보공학부 이동통신연구실) ;
  • 김명진 (한국외국어대학교 정보통신공학과)
  • Published : 2004.12.01


Multicarrier direct sequence code-division multiple access CDMA(MC DS-CDMA) is an attractive technique for achieving high data rate transmission even if the potentially large peak-to-average power ratio(PAPR) is an important factor for its application. On the other hand, code select CDMA(CS-CDMA) is an attractive technique with constant amplitude transmission of multicode signal irregardless of subchannels by introducing code selection method. In this paper we propose a new multiple access scheme based on the combination of MC DS-CDMA and CS-CDMA. Proposed scheme, which we called MC CS-CDMA, includes the sutclasses of MC DS-CDMA and CS-CDMA as special cases. The performance of this system is investigated for multipath Sequency selective fading channel and maximal ratio combining with rake receiver. In addition the PAPR of proposed system is compare with that of both MC BS-CDMA and CS-CDMA. Simulation results show that proposed system improves PAPR reduction than MC DS-CDMA at the expense of the complexity of receiver and the number of available non. Also, the numerical result shows that the proposed system is better performance than MC DS-CDMA due to the increasing processing gain and the number of time diversity gain.


  1. R. Prasad, CDMA for Wireless Personal Communications. Norw ood, MA:Artech,1996
  2. N.Morinaga,M.Nakagawa,and R Kohno ,'New concepts and tech nologies for achieving highly reliable and high- capacity multimedia wireless communica tions systems,' IEEE Commun. Mag., pp.34- 40 , Jan.1997
  3. R.Prasad, Universal Wireless Personal Communications. Artech, 1998
  4. E.A.Sourour and M.Nakagawa,'Perfonnance of orthogonal multi carrier CDMA in a multipath fading channel,' IEEE Trans, Commun.,vol.44.356-366,Mar.1996
  5. R.Prasad and S.Hara,'Overview of multicarrier CDMA,' IEEE Commun. Mag., pp. 126-133,Dec.1997
  6. V.M. Dasilva and E.S.Sousa, 'Multicarrier orthogonal CDMA si gnals for quasisynchronous comm unication systems,' IEEE J. Select. Areas Commun.,vol.12,pp. 842-852, June 1994
  7. L.Vandendorpe,'Multitone spread spect rum multiple access commun ications system in a multipath Ricean fading channel,' IEEE Trans. Veh. Technol. vol.44, pp.327-337, 1995
  8. N.Yee, J-P.Linnartz, and G.Fettweis, 'Multi-carrier CDMA in indoor wireless radio networks,' in Pro, IEEE PIMRC' 93, Sept.1993, pp.109-113
  9. K.Fazel and L.Papke, 'On the per formance of convolutionally-coded CDMA/OFDM for mobile communi cation system,' in Proc. IEEE PIMRC '93, Sept. 1993, pp.468-472
  10. A. Chouly,A. Brajal, and S. Jourdan, 'Orthogonal multicarrier techniques applied to direct sequence spread spectrum CDMA systems,' in Proc. IEEE GLOBECOM'93, Nov. 1993, pp. 1723-1728
  11. X.Gui and T.S.Ng,'Performance of asynchronous orthogonal multi carrier CDMA system in frequ ency selective fading channel,' IEEE Trans. Commum. vol.47, pp.1084-1091, July 1999
  12. S.Kondo and L.B.Milstein, 'Multi carrier CDMA system with co-channel interference cancellation for asyn chronous forward link,' in Proc. VTC, Stockholm, Sweden,June 7-10,1994
  13. S. Elnoubi and A. EIBeheiry, 'Effect of overlapping between successive carriers of multi- carrier CDMA on the performance in a multi-path fading channel,' IEEETrans.Commun., vol.49, pp. 769-773, May 2001
  14. L.-L.Yang and L. Hanzo, 'Per formance of Generalized Multi carrier DS-CDMA Over Nakagarni -m Fading Channels,' IEEE Trans. Commun ., vol.50 ,No.6, pp. 956-966,June 2002
  15. R. van Nee, A. de Wild, 'Reducing the peak-to-average power ratio of OFDM,' in IEEE. VTC98, Vol 3, 1998 pp.2072-2076
  16. A.E.Jones, T.A.Wilkinson, and S.K.Bart on, 'Block coding scheme for reduction of peak to mean envelope power ratio multicarrier transmission schemes,' Electron. Lett. vol.30,No 25,pp.2098 -2099, 1994
  17. S.Muller et al, 'OFDM with reduce peak-to-average power ratio by multiple signal represent ation,' Annals Telecommun. vol. 52, no.1, pp.58-67, 1997
  18. R.W.Bauml, R.Fisher and J.B. Huber, 'Reducing the peak-to- average power ratio of multi carrier modul ation by selected mapping,' Electron.Lett.vol.32, no.22, pp.2056-2057, 1996
  19. B.-J.Choi, E-L.Kuan, and L.Hanzo, 'Crest-factors study of MC- CDMA and OFDM,' in Proc. IEEE Veh. Technol. Conf. (VTC)' 99, Houston, TX, May 1999,pp 233-237
  20. H.Ochiai and H.Imai, 'OFDM- CDMA with peak power reduction based on the spreading sequen ces,' in Proc.IEEE Int.Conf Commun. (ICC)'98, Altanta, GA, June 1998,pp.1299-1303
  21. L. J. Cimini Jr and N.R. Sollenberge, 'Peak-to-Average Power Ratio reduction of an OFDM signal using partial transmit sequences,' IEEE Commun.Lett., vol.4, pp.86-88, Feb. 2000
  22. T.Wada, T.Yamazato, M.Katayama, and A.Ogawa,'A Constant amplitude coding for orthogonal multicode CDMA systems,' IEICE Trans. Fund.,vol.E80-A, pp.2477-2484,Dec.1997
  23. 안호성, 류승문, 나성웅, 'Binary CDMA 소개', 제 12회 JCCI 학술대회, 2002, 제주
  24. G.L Turin, 'The Effect of Multi path and Fading on the Performance of Direct-Sequence CDMA Systems,' IEEE JSAC, Vol.SAC-2, No.4, page 597-603 July 1984
  25. J. G.Proakis, 'Digital Communications,' 3th ed. New York:McGraw Hill, 1995
  26. M.-S.Alouini and A.J.Go1dsmith, 'A unified approach for cal culation error rates of linearly modulated signals over gener alized fading channels,' IEEE Trans, Commun., vol.47,pp.1324- 1334, Sept.1999
  27. J.W.Craig, 'A new,simple,and exact result for calculating the probability of error for two dimensional signal constellations,' in Proc. IEEE Military Commun ications Conf,(MILCOM '91), Mc Lean, VA, Oct. 1991, pp.571-575
  28. K.Pahlavan, 'Wireless Commun ications for Office Information Networks,' IEEE Commun. Mag., Vol.23, No.6 pp.19-27, June 1985
  29. K. Pahlavan and M.Chase,'Spread- Spectrum Multiple-Access Performance of Orthogonal Codes for Indoor Radio Commun ications,' IEEE Trans, Commun., vo1.38, No.5, pp.574-577,May. 1990