TY - GEN
T1 - Interference suppression in MC-CDMA systems by joint transceiver design
AU - Kyoungnam, Seo
AU - Liuqing, Yang
PY - 2007
Y1 - 2007
N2 - Multi-carrier code division multiple access (MC-CDMA) systems are well suited for high data rate wireless multimedia services due to their capability of converting the frequency-selective jading channels to distinct frequency-flat ones with, low-complexity fast Fourier transform (FFT) devices. However, in multiuser MC-CDMA systems, the frequency selectivity and variation of the users ' geographical locations give rise to the multiuser interference (MUI) which induces a significant performance degradation of the systems. In order to mitigate MUI, we present a joint interference suppression algorithm of transmitter power control, receiver array processing and multiuser detection. In addition to the interference suppression using this algorithm, the frequency selectivity also provides multipath diversity if appropriately exploited. Simulations confirm the outstanding performance improvement of this algorithm compared with existing alternatives in MC-CDMA systems, and also confirm that the algorithm performs better in frequency-selective fading channels than m frequency-flat fading ones due to the multipath diversity.
AB - Multi-carrier code division multiple access (MC-CDMA) systems are well suited for high data rate wireless multimedia services due to their capability of converting the frequency-selective jading channels to distinct frequency-flat ones with, low-complexity fast Fourier transform (FFT) devices. However, in multiuser MC-CDMA systems, the frequency selectivity and variation of the users ' geographical locations give rise to the multiuser interference (MUI) which induces a significant performance degradation of the systems. In order to mitigate MUI, we present a joint interference suppression algorithm of transmitter power control, receiver array processing and multiuser detection. In addition to the interference suppression using this algorithm, the frequency selectivity also provides multipath diversity if appropriately exploited. Simulations confirm the outstanding performance improvement of this algorithm compared with existing alternatives in MC-CDMA systems, and also confirm that the algorithm performs better in frequency-selective fading channels than m frequency-flat fading ones due to the multipath diversity.
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U2 - 10.1109/MILCOM.2006.302012
DO - 10.1109/MILCOM.2006.302012
M3 - Conference contribution
AN - SCOPUS:35148854041
SN - 1424406188
SN - 9781424406180
T3 - Proceedings - IEEE Military Communications Conference MILCOM
BT - Military Communications Conference 2006, MILCOM 2006
T2 - Military Communications Conference 2006, MILCOM 2006
Y2 - 23 October 2006 through 25 October 2006
ER -