Title :
DSP-based implementation of soft Viterbi decoder for power line communications
Author :
Bali, Mohamed Chaker ; Rebai, Chiheb
Author_Institution :
GRESCOM Res. Lab., Univ. of Carthage, Tunis, Tunisia
Abstract :
When using power line communications (PLC) modems for Smart Grids (SG), achieving fast and reliable data transmission is one of the key issues. This paper investigate a soft Viterbi decoder to reduce errors effects of noises and attenuations in Spread Frequency Shift Keying (S-FSK) communication scheme. Through numerical simulations, the improvements of the proposed Viterbi decoder are shown in terms of BER performance. Furthermore, practical realization on low-cost embedded processor is discussed. The whole design of a narrowband S-FSK based PLC modem has been implemented and optimization for real time processing.
Keywords :
Viterbi decoding; carrier transmission on power lines; digital signal processing chips; frequency shift keying; modems; power system management; power system measurement; smart power grids; DSP; PLC modem; errors effect reduction; low cost embedded processor; power line communication; real time processing; reliable data transmission; smart power grid; soft Viterbi decoder; spread frequency shift keying communication; Bit error rate; Decoding; Frequency shift keying; Modems; Noise; Receivers; Viterbi algorithm; FEC; S-FSK; Smart Grids; Viterbi decoding; convolutional code; power line communications;
Conference_Titel :
Consumer Communications and Networking Conference (CCNC), 2014 IEEE 11th
Conference_Location :
Las Vegas, NV
Print_ISBN :
978-1-4799-2356-4
DOI :
10.1109/CCNC.2014.6866549
