Complex valued Block Codes for OFDM-CDMA Application

Authors: A. Dekorsy, K.-D. Kammeyer
Abstract: This paper introduces the extension of Walsh-Hadamard block codes in order to obtain complex valued block codes. These complex valued block codes lead to an improved spectral efficiency with additional lower error rate. Applied for low rate concatenated coding schemes required for CDMA uplink transmission, the gain in spectral efficiency due to the new codes can be used for strengthening other codes participating. We observe a gain of about 1.7 dB for BER=10-3 for OFDM-CDMA transmission.
Document type: Conference Paper
Publication: Oberpfaffenhofen, Germany, 15. - 17. September 1999
Conference: 2nd International Workshop on Multi-Carrier Spread-Spectrum (MCSS 99)
Index: 91
Paper KB
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