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
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.
2008, Vol. 30 
