Application of Rate Compatible Punctured Turbo Coded Hybrid ARQ to MC-CDMA Mobile Radio
نویسنده
چکیده
Abstract MC-CDMA, a multicarrier modulation scheme based on code division multiple access (CDMA) is the most likely candidate for the next generation of mobile radio communications. Rate compatible punctured turbo coded hybrid ARQ (RCPT HARQ) has been found to give improved throughput performance in a DS-CDMA system. In this paper, we apply RCPT HARQ to an MC-CDMA system and evaluate by computer simulations the throughput performance of the RCPT HARQ in a frequency selective Rayleigh fading channel. It was found that the throughput performance of RCPT HARQ is almost insensitive to channel characteristics. The performance can be drastically improved with receive diversity combined with spacetime transmit diversity (STTD). In addition, the comparison of RCPT HARQ in MC-CDMA, OFDM and DS-CDMA systems shows that, under similar conditions, the throughput in MCCDMA is the best over a frequency-selective fading channel.
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Rate Compatible Punctured Turbo-Coded Hybrid ARQ for OFDM in a Frequency Selective Fading Channel
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