Title :
OFDM modem for ATM based point-multipoint systems
Author :
Altamura, P. ; Cardarilli, G.C. ; Del Re, A. ; Re, M.
Author_Institution :
Dept. of Electron. Eng., Univ. of Rome Tor Vergata, Italy
Abstract :
In this paper an application of the OFDM modulation to the "last mile" problem and the main algorithms involved are described. Moreover, the architectures of the most important blocks (namely modulator and demodulator) are illustrated and the design methodology is described. The system has been simulated in FPL and FXP arithmetic and a VHDL description has been automatically generated by using COSSAP. Finally the architecture has been synthesized and mapped on FPGAs.
Keywords :
OFDM modulation; asynchronous transfer mode; field programmable gate arrays; hardware description languages; intersymbol interference; modems; time division multiple access; ATM based point-multipoint systems; COSSAP; FPGAs; FPL; FXP; OFDM modem; VHDL description; demodulator; design methodology; last mile; modulator; Asynchronous transfer mode; Demodulation; Design methodology; Digital modulation; Frequency synchronization; Modems; OFDM modulation; Optical design; Optical fiber cables; Time division multiple access;
Conference_Titel :
Circuits and Systems for Communications, 2002. Proceedings. ICCSC '02. 1st IEEE International Conference on
Print_ISBN :
5-7422-0260-1
DOI :
10.1109/OCCSC.2002.1029064
