Title :
Synchronization in DMT based VDSL modems
Author :
Lakhzouri, Abdelmonaem ; Renfors, Markku
Author_Institution :
Telecommun. Lab., Tampere Univ. of Technol., Finland
fDate :
6/23/1905 12:00:00 AM
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;
Conference_Titel :
Electronics, Circuits and Systems, 2001. ICECS 2001. The 8th IEEE International Conference on
Print_ISBN :
0-7803-7057-0
DOI :
10.1109/ICECS.2001.957586
