NDLI: Carrier frequency offset estimation in power line communication networks

Content Provider	IEEE Xplore Digital Library
Author	Sai Prakash, S.K.L.V. Lakshmi, J.D.S.
Copyright Year	2015
Description	Author affiliation: Dept. of Electron. & Commun. Eng., Nat. Inst. of Technol., Warangal, India (Sai Prakash, S.K.L.V.; Lakshmi, J.D.S.)
Abstract	As the Power Line Communication (PLC) network standard, IEEE 1901 uses OFDM for its uplink and downlink transmissions, the sensitivity of the network to the timing and frequency errors are prominent. The frequency errors are due to the carrier frequency offsets caused by instabilities in local oscillators and ageing effects. A novel recursive algorithm for carrier frequency offset estimation is proposed. The algorithm updates the offset estimated value in terms of the previous estimate and a weighing factor based on the power line channel conditions. The carrier frequency offset in the PLC network is studied for various cyclic prefix and IFFT lengths. The performance of the recursive algorithm is evaluated with respect to the maximum likelihood algorithm and it is observed that it out performs the latter if the channel conditions are good.
Starting Page	1
Ending Page	6
File Size	634765
Page Count	6
File Format	PDF
e-ISBN	9781479970759
DOI	10.1109/ICCPCT.2015.7159458
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-03-19
Publisher Place	India
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	OFDM Noise Estimation Receivers PLC networks Frequency estimation Synchronization ML estimate Synchronisation Carrier frequency offset ICI
Content Type	Text
Resource Type	Article

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