Direct-Sequence/Spread-Spectrum Communication System with Sampling Rate Selection Diversity

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 with higher clock. 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 the certain channel conditions.

• Type: Journal
• Year: 2008
• Where: IEICET
• Authors: Yohei Suzuki, Anas Muhamad Bostamam, Mamiko Inamori, Yukitoshi Sanada
• Keywords: IEICET 2008, Power Consumption, Rate Selection Diversity, Sampling Rate