Title :
Receiver design for OFDM-CDMA systems with multiplexed STBC
Author :
Zheng, Kan ; Wang, Jianfeng ; Wang, Wenbo
Author_Institution :
Wireless Signal Process. Lab., Beijing Univ. of Posts & Telecommun.
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
Keywords :
OFDM modulation; antenna arrays; block codes; code division multiple access; diversity reception; equalisers; fading channels; multipath channels; radio receivers; receiving antennas; space-time codes; transmitting antennas; OFDM-CDMA system; equalization complexity; frequency Rake receiver; multipath fading channel; multiplexed STBC; receive antenna; space-time block code; transmit antenna; transmitter diversity scheme; Computer architecture; Error analysis; Fading; Multiaccess communication; Multipath channels; OFDM; RAKE receivers; Receiving antennas; Transceivers; Transmitters;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 2005. PIMRC 2005. IEEE 16th International Symposium on
Conference_Location :
Berlin
Print_ISBN :
9.7838007291e+012
DOI :
10.1109/PIMRC.2005.1651877
