An OFDMA based modem for powerline communications over the low voltage distribution network

Author

Gault, Sophie ; Ciblat, Philippe ; Hachem, Walid

Author_Institution

Dept. of Telecommun., Supelec, Gif-sur-Yvette, France

fYear

2005

fDate

6-8 April 2005

Firstpage

42

Lastpage

46

Abstract

The paper describes an OFDMA based modem for multiple access powerline communications (PLC) over the low-voltage distribution network. Relying on a preliminary characterization of the French PLC network, a complete description of the modem is given. It concerns in particular the data frame structure, subcarrier allocation to users, the bit loading algorithm used for symbol coding, synchronization, and equalization. The proposed system is evaluated through simulations carried out using a simplified noise model.

Keywords

OFDM modulation; carrier transmission on power lines; distribution networks; encoding; equalisers; modems; OFDMA; bit loading algorithm; data frame structure; equalization; low voltage distribution network; multiple access powerline communications; simplified noise model; subcarrier allocation; symbol coding; synchronization; Frequency conversion; Frequency synchronization; Internet; Low voltage; Modems; Multimedia communication; OFDM; Power grids; Power system modeling; Programmable control;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Line Communications and Its Applications, 2005 International Symposium on

Print_ISBN

0-7803-8844-5

Type

conf

DOI

10.1109/ISPLC.2005.1430462

Filename

1430462