论文信息 - Wideband CDMA

Wideband CDMA

nd direct sequence CDMA (Code Division ple Access) is emerging as the predomitechnology for the next-generation regional and global wireless standard. The North American CDMA system based on the IS-95 has brought many practical technical achievements as well as several lessons learned and has paved the way for possible future deployment of a more refined system operating at higher chip rate based on Wideband CDMA (W-CDMA). This system, some aspect of which has been led by the NTT Docomo of Japan and supported by other organizations and harmonized with European standards, is known as UMTS Terrestrial Radio Access and is clearly laying the foundation for next-generation wireless networks. The W-CDMA has the potential to bring a highly valuable packet mode as a hallmark of the third-generation system, the same way digital access did for the second-generation wireless air interface. This will allow flexibility both in the physical layer through CDMA and in the network through packet communications, thereby simplifying a number of functions for heterogeneous and mobile traffic.

B. Jabbari

[1] Fumiyuki Adachi,et al. Wideband DS-CDMA for next-generation mobile communications systems , 1998, IEEE Commun. Mag..

[2] Ramjee Prasad,et al. An overview of air interface multiple access for IMT-2000/UMTS , 1998, IEEE Commun. Mag..

[3] L. P. Linde,et al. Performance evaluation of a QPSK system employing complex spreading sequences in a fading environment , 1999, Gateway to 21st Century Communications Village. VTC 1999-Fall. IEEE VTS 50th Vehicular Technology Conference (Cat. No.99CH36324).

[4] Laurence B. Milstein,et al. Coherent DS-CDMA performance in Nakagami multipath fading , 1995, IEEE Trans. Commun..

[5] Jinho Choi. Multipath CDMA channel estimation by jointly utilising pilot and traffic channels , 1999 .

[6] Erik Dahlman,et al. UMTS/IMT-2000 based on wideband CDMA , 1998, IEEE Commun. Mag..

[7] Laurence B. Milstein,et al. Partially coherent DS-SS performance in frequency selective multipath fading , 1997, IEEE Trans. Commun..

[8] Emad K. Al-Hussaini,et al. Performance of MRC Diversity Systems for the Detection of Signals with Nakagami Fading , 1985, IEEE Trans. Commun..

[9] Michael B. Pursley,et al. Complex processing in quaternary direct-sequence spread-spectrum receivers , 1998, IEEE Military Communications Conference. Proceedings. MILCOM 98 (Cat. No.98CH36201).

[10] Valentine A. Aalo,et al. Performance analysis of coherent DS-CDMA systems in a Nakagami fading channel with arbitrary parameters , 1997 .