Multi-stage interference canceller systems with accurate radio channel estimation under fading environment

Eiichiro Kawakami, Satoru Shimizu, Kiyohito Tokuda

Research output: Contribution to conferencePaper

Abstract

This paper proposes multi-stage interference canceller systems (MSICS) which can estimate radio channels with precision in direct sequence code division multiple access (DS-CDMA) systems. For accurate channel estimation, we propose a novel radio channel estimation method specified by the following two signal processings. One is the radio channel estimation method using both pilot and information signals. The other is the correction method of estimated radio channels using adaptation algorithms. The results of our computer simulations indicate that the cell capacity of the proposed MSICS in serial and parallel structure can be increased by about 1.8 and 1.3 times over that of a receiver which does not have a canceller, respectively. Moreover, the proposed MSICS in serial and parallel structure can reduce the required Eb/N0 by about 1.2 dB and 1.6 dB at a BER of 10-3 compared to the Eb/N0 of a conventional MSICS, respectively.

Original languageEnglish
Pages475-479
Number of pages5
Publication statusPublished - 1997
Externally publishedYes
EventProceedings of the 1997 IEEE 6th International Conference on Universal Personal Communications, ICUPC'97. Part 1 (of 2) - San Diego, CA, USA
Duration: 1997 Oct 121997 Oct 16

Conference

ConferenceProceedings of the 1997 IEEE 6th International Conference on Universal Personal Communications, ICUPC'97. Part 1 (of 2)
CitySan Diego, CA, USA
Period97/10/1297/10/16

ASJC Scopus subject areas

  • Hardware and Architecture

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  • Cite this

    Kawakami, E., Shimizu, S., & Tokuda, K. (1997). Multi-stage interference canceller systems with accurate radio channel estimation under fading environment. 475-479. Paper presented at Proceedings of the 1997 IEEE 6th International Conference on Universal Personal Communications, ICUPC'97. Part 1 (of 2), San Diego, CA, USA, .