A decision feedback CP-assisted CDMA scheme using despreading before equalization

研究成果: 書貢獻/報告類型會議論文篇章同行評審

1 引文 斯高帕斯(Scopus)

摘要

We study a cyclic prefix (CP) assisted method used for the uplink of code division multiple access (CDMA) systems in which the code despreading is performed in front of the frequency domain equalizer (FDE). The main advantage of the new despreading scheme is that the required points of discrete Fourier transform in the FDE are significantly reduced compared to the conventional CDMA scheme. Although the CDMA system can enhance system capacity as the number of users increases, the multiuser interference (MUI) needs to be mitigated. In our work, an iterative MUI cancellation method in a combination of decision feedback equalization is proposed. Simulation results show that the proposed scheme achieves the similar performance to the conventional CP-CDMA system and the iterative MUI cancellation method essentially eliminates most of MUI with only a couple of iterations.

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主出版物標題2011 IEEE International Conference on Communications, ICC 2011
DOIs
出版狀態已出版 - 2011
事件2011 IEEE International Conference on Communications, ICC 2011 - Kyoto, Japan
持續時間: 5 6月 20119 6月 2011

出版系列

名字IEEE International Conference on Communications
ISSN(列印)0536-1486

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???event.eventtypes.event.conference???2011 IEEE International Conference on Communications, ICC 2011
國家/地區Japan
城市Kyoto
期間5/06/119/06/11

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