Real time synchronization for an OFDM/PLC system implemented with a DSP

Author

Torres-Alvarado, D. ; Laguna-Sanchez, G.A. ; Prieto-Guerrero, A.

Author_Institution

Dept. of Electr. Eng., Univ. Autonoma Metropolitana, Mexico City, Mexico

fYear

2012

fDate

7-9 Nov. 2012

Firstpage

1

Lastpage

6

Abstract

PLC is a technology for data transmission over the power line and, it is a very attractive area of research since PLC is potentially suitable for sending data at high rates over the existing power system infrastructure. Synchronization is a fundamental process in any OFDM communication system and its implementation must be efficient and fast. This work presents a real time implementation featuring a synchronization method for an OFDM Power Line Communication (PLC) system using a TMS320C6416 DSP. The synchronization method presented in this paper combines techniques based on correlation, linear regression and phase rotation. We propose a specific design for the preamble sequence used in synchronization and channel estimation and present some implementation details that could be useful to implement the referred synchronization algorithm in a real PLC modem.

Keywords

OFDM modulation; carrier transmission on power lines; channel estimation; correlation methods; digital signal processing chips; regression analysis; synchronisation; OFDM power line communication system; OFDM-PLC system; TMS320C6416 DSP; channel estimation; correlation method; data transmission; linear regression method; phase rotation method; power system infrastructure; preamble sequence; real PLC modem; real time synchronization method; referred synchronization algorithm;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications (LATINCOM), 2012 IEEE Latin-America Conference on

Conference_Location

Cuenca

Print_ISBN

978-1-4673-5079-2

Type

conf

DOI

10.1109/LATINCOM.2012.6505995

Filename

6505995