NDLI: Coding and diversity schemes for OFDM based narrowband power-line communications

Content Provider	IEEE Xplore Digital Library
Author	Lakshmi, A. Koomullil, G. Bapat, J.
Copyright Year	2008
Description	Author affiliation: Corp. Innovation & Technol., NXP Semicond. India Pvt Ltd., Bangalore (Lakshmi, A.; Koomullil, G.) \|\| Dept. of Inf. Technol., IIITB, Bangalore (Bapat, J.)
Abstract	Narrowband communications over power lines has been in use for automatic meter reading (AMR) of electric, gas, and water meters. The major hurdle in the widespread use of this medium is the time varying nature of the channel and impairments such as the presence of colored background noise and large impulse noises in time and frequency domains. In this paper, we model the extremely noisy channel environment and propose a time and frequency domain diversity technique for an OFDM based solution. While COFDM based solutions have been implemented in practice for wireless systems, our work shows that in the presence of impulsive noises and colored background noise, FEC may not be the best solution and it is preferable to use simple redundancy in frequency and time domain to achieve reliable data transmission. The proposed system has very low computational complexity and is specifically designed for AMR application in the CENELEC frequency bands A and B.
Starting Page	73
Ending Page	76
File Size	475888
Page Count	4
File Format	PDF
ISBN	9781424426805
DOI	10.1109/ATC.2008.4760521
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-10-06
Publisher Place	Vietnam
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Automatic meter reading OFDM Working environment noise Redundancy Background noise Data communication Colored noise Computational complexity Frequency domain analysis Narrowband
Content Type	Text
Resource Type	Article

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