NDLI: An Improved PTA Method to Estimate the Residual Carrier Frequency Offset in Wireless OFDM Systems

Content Provider	IEEE Xplore Digital Library
Author	Guangliang Ren Jiangtao Xing Huining Zhang
Copyright Year	2007
Description	Author affiliation: Xidian Univ., Xi'an (Guangliang Ren; Jiangtao Xing; Huining Zhang)
Abstract	An improved pilot tone aided (PTA) method to estimate the residual frequency offset (RCFO) is proposed for wireless orthogonal frequency division multiplexing (OFDM) systems. Based on the estimated SNRs of the subchannels, the cross-correlation data between adjacent OFDM symbols on the sub-channels with high quality transmissions are selected, and hard decided. The hard decisions and data on the pilot tones are used to estimate the residual frequency offset on the corresponding sub-channels respectively. Each of the estimated RCFOs is weighted by the SNR on the corresponding subchannel and combined to improve the RCFO estimation performance. The simulation results indicate that the proposed scheme achieves much better performance than the available PTA schemes.
Starting Page	318
Ending Page	322
File Size	1308413
Page Count	5
File Format	PDF
ISBN	9781424410736
DOI	10.1109/IWSDA.2007.4408388
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-09-23
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Degradation OFDM System performance Laboratories Interference Performance gain synchronization Frequency estimation Frequency synchronization residual frequency offset estimation Tellurium Digital video broadcasting
Content Type	Text
Resource Type	Article

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