Robust channel estimation for the OFDM-based WLAN systems with imperfect synchronization |
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| Authors: | Zi-Wei Zheng |
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| Affiliation: | (1) College of Information Engineering, Dalian Maritime University, 116026 Dalian, People’s Republic of China;(2) Nation Mobile Communications Research Laboratory, Southeast University, 210096 Nanjing, People’s Republic of China |
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| Abstract: | As an effective technique for combating multipath fading and for high data rate transmission over wireless channels, orthogonal
frequ- ency division multiplexing (OFDM) is extensively used in wireless local area network (WLAN) systems to support high-performance
bandwidth- efficient multimedia services. In this paper, a robust channel estimation scheme is proposed for the OFDM-based
WLAN systems with imperfect synchronization. The frame structure information, the preamble information, the pilot information
are efficiently utilized in the proposed channel estimation scheme. Simulation results are used to illustrate the performance
of the proposed scheme. |
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| Keywords: | Channel estimation Orthogonal frequency division multiplexing Wireless local area network |
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