Semi-Blind OFDM Channel Estimation using Receiver Diversity in the Presence of Virtual Carriers

Wang Kunji, Zhang Jianhua Li Chaojun, Huang Chen
Communications and Networking in China, 2006. ChinaCom ’06. First International Conference on
DOI: 10.1109/CHINACOM.2006.344889
Publish Year: 2006

Abstract: In this paper, a semi-blind channel estimator using receiver diversity is proposed for OFDM systems in the presence of virtual carriers over a time-dispersive channel. We insert a pilot to each data block to resolve the inherent scalar ambiguity of blind identification. The computation complexity of this algorithm is also studied and reduced. By simulation, this algorithm supplies accurate estimation with small expense.

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