Lookup NU author(s): Wael Abd-Alaziz,
Dr Martin Johnston,
Dr Stephane Le Goff
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© EURASIP 2017. The power-line communication (PLC) channel causes information-bearing signals to be affected by impulsive noise and the effects of the multipath fading. To mitigate these effects, we propose the employment of non-binary turbo codes, since non-binary error-correcting codes generally promise an enhanced performance in such harsh environments. In this paper, we investigate the performance of non-binary turbo-codes on PLC channels that exhibit frequency selectivity with additive Middleton Class A noise and compare with a comparable binary turbo-coded PLC system. In order to reduce the effect of multipath and impulsive noise, orthogonal frequency-division multiplexing (OFDM) with non-linear receivers (blanking and clipping) have been employed. The system is examined on extremely impulsive channels where the value of the impulsive index (A) is 0.01 and the noise ratio (Λ) is 0.01. The results show that non-binary turbo codes are very robust and achieve a large gain over binary turbo codes on PLC channels.
Author(s): Abd-Alaziz W, Mei Z, Johnston M, Le Goff S
Publication type: Conference Proceedings (inc. Abstract)
Publication status: Published
Conference Name: 25th European Signal Processing Conference, EUSIPCO 2017
Year of Conference: 2017
Acceptance date: 28/08/2017
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