Synchronization in DMT based VDSL modems

Author

Lakhzouri, Abdelmonaem ; Renfors, Markku

Author_Institution

Telecommun. Lab., Tampere Univ. of Technol., Finland

Volume

2

fYear

2001

fDate

6/23/1905 12:00:00 AM

Firstpage

761

Abstract

In digital transceivers, synchronization is a crucial issue in restoring correctly the transmitted data. In Discrete Multi Tone (DMT) systems, the received continuous-time signal is sampled and demodulated using a Fast Fourier Transform (FFT) operating on blocks of samples (DMT symbols). Aligning the DMT symbols with the FFT window should be done correctly. Clock synchronization should be guaranteed. This paper treats the design of a programmable solution for synchronization in DMT based VDSL modems using Texas Instrument processor family TMS320C64x. We present the hardware needed and the cost of the implementation for this function

Keywords

digital signal processing chips; digital subscriber lines; fast Fourier transforms; modems; synchronisation; transceivers; DMT based VDSL modems; DMT symbols; FFT; TMS320C64x; Texas Instrument processor family; digital transceivers; discrete multi tone systems; fast Fourier transform; programmable solution; synchronization; Clocks; Cost function; Fast Fourier transforms; Hardware; Instruments; Modems; OFDM modulation; Signal restoration; Synchronization; Transceivers;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronics, Circuits and Systems, 2001. ICECS 2001. The 8th IEEE International Conference on

Print_ISBN

0-7803-7057-0

Type

conf

DOI

10.1109/ICECS.2001.957586

Filename

957586