M-ary CDMA scheme based on interference cancellation

Manabu Kawabe; Takuro Sato; Toshio Kato; Atsushi Fukasawa; Ryuji Kohno

M-ary CDMA scheme based on interference cancellation

Manabu Kawabe^*, Takuro Sato, Toshio Kato, Atsushi Fukasawa, Ryuji Kohno

^*Corresponding author for this work

Research output: Contribution to conference › Paper › peer-review

7 Citations (Scopus)

Abstract

This paper describes configuration, analysis and characteristics of an M-ary CDMA using Interference Cancellation (IC) with the Walsh orthogonal code. The IC reduces interference signals of other Personal Stations (PSs), improves communication quality and increases system capacity in a cell. In this IC scheme, cancellation value is calculated from the correlation value, then the cancellation value correspond to the variation of fading. This results of the analysis represent that the limitation of the system capacity becomes equal to the spreading ratio when IC is used. A computer simulation shows that the simultaneously accessing users per cell are obtained up to 40 channels using 2⁶ Walsh codes as a spreading codes under Rayleigh fading conditions.

Original language	English
Pages	33-38
Number of pages	6
Publication status	Published - 1994 Dec 1
Externally published	Yes
Event	Proceedings of the 1994 IEEE Asia-Pacific Conference on Circuits and Systems - Taipei, Taiwan Duration: 1994 Dec 5 → 1994 Dec 8

Other

Other	Proceedings of the 1994 IEEE Asia-Pacific Conference on Circuits and Systems
City	Taipei, Taiwan
Period	94/12/5 → 94/12/8

ASJC Scopus subject areas

Electrical and Electronic Engineering

Cite this

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title = "M-ary CDMA scheme based on interference cancellation",

abstract = "This paper describes configuration, analysis and characteristics of an M-ary CDMA using Interference Cancellation (IC) with the Walsh orthogonal code. The IC reduces interference signals of other Personal Stations (PSs), improves communication quality and increases system capacity in a cell. In this IC scheme, cancellation value is calculated from the correlation value, then the cancellation value correspond to the variation of fading. This results of the analysis represent that the limitation of the system capacity becomes equal to the spreading ratio when IC is used. A computer simulation shows that the simultaneously accessing users per cell are obtained up to 40 channels using 26 Walsh codes as a spreading codes under Rayleigh fading conditions.",

author = "Manabu Kawabe and Takuro Sato and Toshio Kato and Atsushi Fukasawa and Ryuji Kohno",

year = "1994",

month = dec,

day = "1",

language = "English",

pages = "33--38",

note = "Proceedings of the 1994 IEEE Asia-Pacific Conference on Circuits and Systems ; Conference date: 05-12-1994 Through 08-12-1994",

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T1 - M-ary CDMA scheme based on interference cancellation

AU - Kawabe, Manabu

AU - Sato, Takuro

AU - Kato, Toshio

AU - Fukasawa, Atsushi

AU - Kohno, Ryuji

PY - 1994/12/1

Y1 - 1994/12/1

N2 - This paper describes configuration, analysis and characteristics of an M-ary CDMA using Interference Cancellation (IC) with the Walsh orthogonal code. The IC reduces interference signals of other Personal Stations (PSs), improves communication quality and increases system capacity in a cell. In this IC scheme, cancellation value is calculated from the correlation value, then the cancellation value correspond to the variation of fading. This results of the analysis represent that the limitation of the system capacity becomes equal to the spreading ratio when IC is used. A computer simulation shows that the simultaneously accessing users per cell are obtained up to 40 channels using 26 Walsh codes as a spreading codes under Rayleigh fading conditions.

AB - This paper describes configuration, analysis and characteristics of an M-ary CDMA using Interference Cancellation (IC) with the Walsh orthogonal code. The IC reduces interference signals of other Personal Stations (PSs), improves communication quality and increases system capacity in a cell. In this IC scheme, cancellation value is calculated from the correlation value, then the cancellation value correspond to the variation of fading. This results of the analysis represent that the limitation of the system capacity becomes equal to the spreading ratio when IC is used. A computer simulation shows that the simultaneously accessing users per cell are obtained up to 40 channels using 26 Walsh codes as a spreading codes under Rayleigh fading conditions.

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M3 - Paper

AN - SCOPUS:0028730146

SP - 33

EP - 38

T2 - Proceedings of the 1994 IEEE Asia-Pacific Conference on Circuits and Systems

Y2 - 5 December 1994 through 8 December 1994

ER -

M-ary CDMA scheme based on interference cancellation

Abstract

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ASJC Scopus subject areas

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