Enhancement of the W-CDMA scheme based on parallel matched filters

  • Authors:

  • Shigenori Tani;Cindy Bernadeth Tjitrosoewarno;Atsushi Fukasawa;Kenji Horiguchi;Yumi Takizawa

  • Affiliations:

  • Graduate School of Science and Technology, Chiba University, Chiba-shi, Chiba, Japan;Graduate School of Science and Technology, Chiba University, Chiba-shi, Chiba, Japan;Graduate School of Science and Technology, Chiba University, Chiba-shi, Chiba, Japan;Mobile Techno. Inc., Kawasaki-shi, Kanagawa, Japan;Institute of Statistical Mathematics, Ministry of Education, Science and Technology, Tokyo, Japan

  • Venue:
  • ICAI'05/MCBC'05/AMTA'05/MCBE'05 Proceedings of the 6th WSEAS international conference on Automation & information, and 6th WSEAS international conference on mathematics and computers in biology and chemistry, and 6th WSEAS international conference on acoustics and music: theory and applications, and 6th WSEAS international conference on Mathematics and computers in business and economics
  • Year:
  • 2005

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Abstract

The basic structure of the W-CDMA system is investigated first in this paper together with its characteristics which have been provided previously by the authors. The advantages of the W-CDMA are wide spreading and coherent detection with a pilot channel. The pilot channel is optimized to give the best performance of Bit Error Rate. New structure of W-CDMA receiver is then studied to increase transmission data rate and capacity of mobile communications. This structure, with parallel matched filter, has been proposed for synchronization and demodulation under multipath environments. Parallel matched filter is configured by analog MOS LSI instead of conventional digital components. The power consumption and dimension of the LSI are reduced by the combination of system and hardware approaches.