Sciweavers

Share
VTC
2008
IEEE

Multi-Code MC-CDMA Using Joint CDTD and Inter-Code Interference Cancellation

9 years 1 months ago
Multi-Code MC-CDMA Using Joint CDTD and Inter-Code Interference Cancellation
Abstract—In multicarrier code division multiple access (MCCDMA), a good bit error rate (BER) performance can be achieved by using frequency-domain equalization (FDE) based on the minimum mean square error (MMSE) criterion. However, the presence of residual inter-code interference (ICI) after MMSE-FDE and despreading degrades the BER performance of the multi-code MC-CDMA. The use of ICI cancellation can improve the BER performance of the multi-code MC-CDMA. To further improve the BER performance, transmit diversity technique is effective. In this paper, cyclic delay transmit diversity (CDTD) is considered. CDTD can achieve the frequency diversity gain, whereas the well-known space-time transmit diversity (STTD) can achieve the antenna diversity gain owing to the space-time coding and provide a better BER performance than CDTD. It is shown in this paper that the performance degradation of CDTD is mainly due to the residual ICI after MMSE-FDE. In order to achieve a good BER performance,...
Kazuaki Takeda, Hiromichi Tomeba, Jiangzhou Wang,
Added 01 Jun 2010
Updated 01 Jun 2010
Type Conference
Year 2008
Where VTC
Authors Kazuaki Takeda, Hiromichi Tomeba, Jiangzhou Wang, Fumiyuki Adachi
Comments (0)
books