The W-CDMA scheme with parallel matched filter and its enhancement

  • Authors:
  • Shigenori Tani;Cindy Bernadeth Tjitrosoewarno;Atsushi Fukasawa;Yumi Takizawa

  • Affiliations:
  • Graduate School of Science and Technology, Chiba University, Chiba, Japan;Graduate School of Science and Technology, Chiba University, Chiba, Japan;Graduate School of Science and Technology, Chiba University, Chiba, Japan;Institute of Statistical Mathematics, Ministry of Education, Science and Technology, Tokyo, Japan

  • Venue:
  • TELE-INFO'05 Proceedings of the 4th WSEAS International Conference on Telecommunications and Informatics
  • Year:
  • 2005

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Abstract

Enhancement of the W-CDMA scheme is studied in this paper based on its characteristic evaluation of the scheme provided by the authors. The advantages of the W-CDMA are wide spreading and coherent demodulation with a pilot channel. The pilot level is optimized to give the maximum capacity of the system. New configuration of the W-CDMA is then investigated to increase transmission data rate and capacity of mobile communications. This structure, with parallel matched filter, has been proposed for synchronization and demodulation under severe multipath environments. The parallel matched filter is configured by an analog MOS device with the conventional digital circuits. The power consumption and dimension of the LSI are reduced effectively by the simultaneous approach to the system and circuit configuration.