Receiver Design for OFDM-CDMA Systems with Multiplexed STBC
Conference: PIMRC 2005 - 16th Annual IEEE International Symposium on Personal Indoor and Mobile Radio Communications
09/11/2005 - 09/14/2005 at Berlin, Germany
Proceedings: PIMRC 2005
Pages: 5Language: englishTyp: PDF
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Authors:
Zheng, Kan; Wang, Jianfeng; Wang, Wenbo (Wireless Signal Processing Lab., Beijing University of Posts & Telecomms, Beijing, China)
Abstract:
OFDM combined with CDMA has emerged as an attractive technique due to its low equalization complexity and good performance in multipath fading channels due to frequency Rake receiver. Using the transmitter diversity scheme and layered space-time (LST) architecture with OFDM-CDMA, high spectral efficiency and good error rate performance can be achieved at the same time. In this paper, the transceiver structure in OFDM-CDMA with multiplexed space-time block codes (STBC) is proposed, in which the number of receive antennas can be less than that of transmit antennas. Computer simulation demonstrates effectiveness of this detector and conclusion is followed.