Hybrid forward error correction coding efficiency for MIMO-PLC with symmetric alpha-stable noise
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Hybrid forward error correction coding efficiency for MIMO-PLC with symmetric alpha-stable noise Amel Benaissa1 · Abdelhafid Abdelmalek1 · Mohammed Feham1 · Yassine Himeur2 · Abdelkrim Boukabou3
© Springer Science+Business Media, LLC, part of Springer Nature 2020
Abstract Power line communication (PLC) medium is a very hostile environment, this is due to the fact that severe impairments adhering this means of communication, which cannot be described as a Gaussian noise. In this paper, we propose a powerful scheme to combat the impulsive noise effect and efficiently increase the transmission bit rate. The proposed technique makes use of a new hybrid coding (HC) process and a multiple input multiple output (MIMO) based orthogonal frequency division multiplexing (OFDM), namely, HC-MIMO-OFDM. The HC is mainly constructed based on the combination of convolutional codes (CC) and quasi cyclic-low density parity check codes (QC-LDPC). The HC-MIMO-OFDM stage is then followed by an orthogonal space time block code to provide more robustness under a heavy impulsive noise environment. Furthermore, the symmetric α-stable model is applied to characterize the realistic PLC noise and consequently avoid the overestimation of the overall performance in such communication systems. The obtained results showed the increase improvement in performance of the bit-error-rate with the raise of the bit rate, when going from single input single output to MIMO. In addition, it has been illustrated that there was a gain when the MIMO was supplemented with only the CC and an additional gain when the HC is considered (i.e., combination of CC plus QC-LDPC coding). Keywords PLC · MIMO-OFDM · Impulsive noise · α-stable distribution · QC-LDPC · OSTBC
1 Introduction 1.1 Motivation PLC technology has gained a great interest the last two decades since it offers broadband communication services to all buildings connected to the electrical grid. Hence, this technology is more appropriate for deployment in rural areas in view of its economic opportunities. In fact, the emerged PLC technology reuse the existing electrical wiring for data transmission, and therefore, there is no need of separate copper cables, optical fiber cables, WiMax, WiFi, etc. [1]. How-
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Yassine Himeur [email protected]
1
STIC Laboratory, Abou-Bekr Belkaid University of Tlemcen, Tlemcen, Algeria
2
TELECOM Division, Centre de Développement des Technologies Avancées (CDTA), 16303 Baba Hassen, Algiers, Algeria
3
Electronic Department, University of MSB-Jijel, Ouled Aissa, B.P 98, 18000 Jijel, Algeria
ever, given that the electrical grid is not originally designed for high frequency transmission, it poses severe challenges to data signals including limited transmit power, frequency selectivity, varying impedance, multi-pathing, sever attenuation and impulsive nature of additive noise. This persistent depreciation in PLC systems makes them a very harsh environment for communications purpose [2,3].
1.2 Related works In order to achieve high bit rate and efficient communication ov
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