Precoder for Chip-Interleaved CDMA Using Space-Time Block-Coding

Yuji KIMURA; Koji SHIBATA; Takakazu SAKAI

doi:10.1093/ietfec/e91-a.10.2885

Special Section on Information Theory and Its Applications

Precoder for Chip-Interleaved CDMA Using Space-Time Block-Coding

Yuji KIMURA, Koji SHIBATA, Takakazu SAKAI

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Keywords: space-time block-coding, chip-interleaved CDMA, block spreading

JOURNAL RESTRICTED ACCESS

2008 Volume E91.A Issue 10 Pages 2885-2888

DOI https://doi.org/10.1093/ietfec/e91-a.10.2885

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Abstract

We study the performances of a synchronous chip-interleaved, block spread (CIBS) code division multiple access (CDMA) with space-time block-coding (STBC) in the presence of frequency-selective fading. For providing the space diversity gain due to STBC, we introduce the optimum precoding for the STBC. Zero-forcing and minimum mean square error equalizers for CIBS-CDMA are derived. Simulation results confirm that the proposed precoder is valid under the frequency selective fading.

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