Direct-Sequence/Spread-Spectrum communication system with sampling rate selection diversity

Yohei Suzuki; Anas M. Bostamam; Mamiko Inamori; Yukitoshi Sanada

doi:10.1093/ietcom/e91-b.1.267

Direct-Sequence/Spread-Spectrum communication system with sampling rate selection diversity

Yohei Suzuki, Anas M. Bostamam, Mamiko Inamori, Yukitoshi Sanada

Department of Electronics and Electrical Engineering

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

In this paper, sampling rate selection diversity (SRSD) scheme for Direct-Sequence/Spread-Spectrum (DS/SS) is proposed. In DS/SS communication systems, oversampling may be employed to increase the signal-to-noise ratio (SNR). However, oversampling enlarges the power consumption because signal processing of the receiver has to be carried out at a higher clock rate. Higher sampling rate does not always maximize the SNR. In the proposed SRSD scheme, the power consumption can be reduced by selecting the optimum sampling rate depending on the characteristics of the channel. The proposed SRSD scheme can also reduce the BER more than the conventional oversampling scheme under certain channel conditions.

Original language	English
Pages (from-to)	267-273
Number of pages	7
Journal	IEICE Transactions on Communications
Volume	E91-B
Issue number	1
DOIs	https://doi.org/10.1093/ietcom/e91-b.1.267
Publication status	Published - 2008

Keywords

Cognitive radio
Direct-Sequence/Spread-Spectrum (DS/SS)
Diversity
Multipath channel
Oversamping
Rake receiver

ASJC Scopus subject areas

Software
Computer Networks and Communications
Electrical and Electronic Engineering

Access to Document

10.1093/ietcom/e91-b.1.267

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Cite this

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abstract = "In this paper, sampling rate selection diversity (SRSD) scheme for Direct-Sequence/Spread-Spectrum (DS/SS) is proposed. In DS/SS communication systems, oversampling may be employed to increase the signal-to-noise ratio (SNR). However, oversampling enlarges the power consumption because signal processing of the receiver has to be carried out at a higher clock rate. Higher sampling rate does not always maximize the SNR. In the proposed SRSD scheme, the power consumption can be reduced by selecting the optimum sampling rate depending on the characteristics of the channel. The proposed SRSD scheme can also reduce the BER more than the conventional oversampling scheme under certain channel conditions.",

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