BER Reduction Using Precoded OFDM in Power-line Channel. (April 2019)
- Record Type:
- Journal Article
- Title:
- BER Reduction Using Precoded OFDM in Power-line Channel. (April 2019)
- Main Title:
- BER Reduction Using Precoded OFDM in Power-line Channel
- Authors:
- Herath, Sudeepa Madushanka
Reine, Regina
Zang, Zhuquan
Juwono, Filbert H. - Abstract:
- Abstract: Power-line Communications (PLC) effectively uses the pervasive power grid as a high data rate communication medium. Despite its advantages, the presence of severe multipath fading and susceptibility to impulsive noise make reliable communication in a PLC system challenging. In PLC systems, orthogonal frequency-division multiplexing (OFDM) is an attractive choice mainly due to its resilience to multipath fading. However, OFDM signals suffers from large peak-to-average power ratio (PAPR) thus resulting in non-linear signal distortions at the transmitter. Therefore, for an OFDM-based PLC system, the combined effect of large PAPR and the presence of impulsive noise results in high bit error rate (BER). This paper proposes the use of precoding at the transmitter to reduce PAPR, and blanking non-linearity at the receiver to mitigate impulsive noise. Precoding is a data-independent and robust PAPR reduction scheme that essentially distributes the power of the individual OFDM symbols over the entire OFDM block. Blanking is an effective impulsive noise mitigation technique that results in better BER performance at the receiver. Simulation results show that, with the combination of precoding and blanking, significant gains in BER performance for an OFDM based PLC system can be obtained with minimal increase of transceiver complexity.
- Is Part Of:
- IOP conference series. Volume 495(2019)
- Journal:
- IOP conference series
- Issue:
- Volume 495(2019)
- Issue Display:
- Volume 495, Issue 2019 (2019)
- Year:
- 2019
- Volume:
- 495
- Issue:
- 2019
- Issue Sort Value:
- 2019-0495-2019-0000
- Page Start:
- Page End:
- Publication Date:
- 2019-04
- Subjects:
- Materials science -- Periodicals
620.1105 - Journal URLs:
- http://iopscience.iop.org/1757-899X ↗
http://ioppublishing.org/ ↗ - DOI:
- 10.1088/1757-899X/495/1/012040 ↗
- Languages:
- English
- ISSNs:
- 1757-8981
- Deposit Type:
- Legaldeposit
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- Available online (eLD content is only available in our Reading Rooms) ↗
- Physical Locations:
- British Library DSC - BLDSS-3PM
British Library HMNTS - ELD Digital store - Ingest File:
- 11112.xml