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

fYear

2014

fDate

10-13 Jan. 2014

Firstpage

62

Lastpage

67

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Consumer Communications and Networking Conference (CCNC), 2014 IEEE 11th

Conference_Location

Las Vegas, NV

Print_ISBN

978-1-4799-2356-4

Type

conf

DOI

10.1109/CCNC.2014.6866549

Filename

6866549