Title :
Optimum receiver of coded M-FSK modulation for power line communications
Author :
Bali, Mohamed Chaker ; Rebai, Chiheb
Author_Institution :
GRESCOM Res. Lab., Univ. of Carthage, Tunis, Tunisia
Abstract :
Combining Multiple Frequency Shift Keying (M-FSK) modulation and permutation codes has been used to make power line communications (PLC) robust against narrowband noise disturbance and impulse noise. However, the conventional hard decoding of permutation codes is lacking of stability in frequency selective channel since it depends on threshold comparison with every M-FSK envelope detector. In this paper, authors propose a permutation decoding process based on soft demodulator output. Using this innovative scheme, the decoder performs better error correction capability and presents a gain up to 3 dB over hard decoding for same PLC channel conditions.
Keywords :
carrier transmission on power lines; channel coding; decoding; demodulators; error correction codes; frequency shift keying; impulse noise; modulation coding; M-FSK envelope detector; PLC channel condition; coded M-FSK modulation; error correction capability; frequency selective channel; hard decoding; impulse noise; multiple frequency shift keying modulation; narrowband noise disturbance; optimum receiver; permutation code; permutation decoding process; power line communication; soft demodulator output; stability; Decoding; Demodulation; Fading; Frequency modulation; Signal to noise ratio; M-FSK modulation; Smart grids; permutation code; power line communications;
Conference_Titel :
Computers and Communication (ISCC), 2014 IEEE Symposium on
Conference_Location :
Funchal
DOI :
10.1109/ISCC.2014.6912552
