Advanced CDMA scheme based on interference cancellation

M. Kawabe, T. Kato, A. Kawahashi, Takuro Sato, A. Fukasawa

Research output: Chapter in Book/Report/Conference proceedingConference contribution

14 Citations (Scopus)

Abstract

This paper describes a new CDMA scheme based on interference cancellation. The pseudorandom noise(PN) code is used for CDMA scheme to spread the spectrum of user data. When number of users increase, the signals of other users cause interference noises. The fundamental factor of the above interference is dependent on the cross-correlation characteristics of the PN code. A scheme of improvement on the capacity is proposed in this paper based on interference cancellation. The proposed scheme was evaluated on the characteristics of Bit-Error-Rate(BER) vs number of simultaneous users by computer simulation. It was found that around 60 users are available per cell by the proposed method without error correction and voice activity control. Around eight times of the capacity of the conventional correlation scheme was achieved. The configuration of personal station(PS) is effectively reduced in size and cost, because the complicated voice activity control is not necessary and the IC is installed in base station (BS).

Original languageEnglish
Title of host publicationIEEE Vehicular Technology Conference
Place of PublicationPiscataway, NJ, United States
PublisherPubl by IEEE
Pages448-451
Number of pages4
ISBN (Print)078031266X
Publication statusPublished - 1993
Externally publishedYes
EventProceedings of the 43rd IEEE Vehicular Technology Conference - Secaucus, NJ, USA
Duration: 1993 May 181993 May 20

Other

OtherProceedings of the 43rd IEEE Vehicular Technology Conference
CitySecaucus, NJ, USA
Period93/5/1893/5/20

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ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Cite this

Kawabe, M., Kato, T., Kawahashi, A., Sato, T., & Fukasawa, A. (1993). Advanced CDMA scheme based on interference cancellation. In IEEE Vehicular Technology Conference (pp. 448-451). Publ by IEEE.