Published November 6, 2016 | Version v1
Conference paper Open

Simultaneous Cancellation of Narrow Band Interference and Impulsive Noise in PLC Systems

  • 1. Centre Tecnològic de Telecomunicacions de Catalunya (CTTC)
  • 2. Alpen-Adria-Universität

Description

The two major sources of disturbances for an efficient and reliable data transmission through power lines, known as power line communication (PLC), are impulsive noise (IN) and narrow band interference (NBI). In this paper, we propose an algorithm to cancel the IN and NBI simultaneously for an OFDM based PLC system. The proposed method exploits the duality of the problem, where the IN is sparse in the time domain and the NBI is sparse in the frequency domain. By virtue of this duality, we use multiple signal characterization (MUSIC) algorithm to estimate both the IN support (in time domain) and the frequency of NBI (in frequency domain). Furthermore, the minimum mean square error (MMSE) estimator is used to estimate the amplitude and phase of IN samples at the determined locations and the least square (LS) estimator is used to estimate the amplitude and phase of the NBI. Finally, the estimated IN and NBI are canceled out from the received signal, providing noise mitigated samples for demodulation. The performance of the proposed scheme is verified via numerical simulations.

Notes

Grant The work presented in this paper is supported in part by the Generalitat de Catalunya under grant 2014 SGR 1551 and 2014 SGR 1567numbers.© 2016 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.

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Additional details

Funding

European Commission
ADVANTAGE – ADVanced communicAtions and iNformaTion processing in smArt Grid systEms 607774