A simple pilot position detection technique for channel estimation of SC-FDE

Authors:
Bin Sheng;Xiangyang Wang;Xiaohu You;Lan Chen
Affiliations:
National Mobile Communications Research Laboratory, Southeast University, Nanjing, China;National Mobile Communications Research Laboratory, Southeast University, Nanjing, China;National Mobile Communications Research Laboratory, Southeast University, Nanjing, China;DoCoMo Beijing Communications Laboratories Co., Ltd, Beijing, China
Venue:
IEEE Communications Letters
Year:
2010

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Abstract

This letter investigates the frequency domain pilot multiplexing technique (FDPMT) for channel estimation of single-carrier frequency domain equalization (SC-FDE) and proposes a simple pilot position detection technique to blindly estimate the pilot positions in the frequency domain by using the noise subspace. Simulation results show that the proposed technique is robust to multipath fading channels with exponential power delay profile.