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| Subspace-Based Blind Channel Estimation and Multiuser Detection for STBC MC-DS-CDMA System |
| Yang Wei①②; Yang Wei①; Wang Xin-sheng① |
| ①Modern Telecommunication Institute, Beijing Jiaotong University, Beijing 100044, China; ②National Mobile Communications Research Laboratory, Southeast University, Nanjing 210096, China |
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Abstract In this paper, a Space-Time Block-Coded MultiCarrier Direct-Sequence Code-Division Multiple-Access (STBC MC-DS-CDMA) system is proposed. By constructing the unified signal model of STBC MC-DS-CDMA system, the subspace-based blind channel estimation is achieved and its efficiency is shown by simulation results. Based on the estimation results, consequently, the Minimum Mean-Squared Error (MMSE) multiuser detection for the STBC MC-DS-CDMA is also realized which improves the system performance significantly.
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Received: 31 July 2006
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2008, Vol. 30 
