Title :
Oversampled OFDM systems
Author :
Hleiss, Rima ; Duhamel, Pierre ; Charbit, Maurice
Author_Institution :
ENST, Paris, France
Abstract :
Orthogonal frequency division multiplex (ODFM) is an attractive way of transmitting signals, by turning a wide-band signal into several narrow band ones. Orthogonal transmultiplexers are the basic tools required for emitting these signals and recovering them at the receiver side. It is well known that the only DFT modulated transmultiplexers are based on a rectangular window as a prototype, if one sticks to critically sampled systems. This paper investigates the possibilities brought by using oversampled FIR transmultiplexers instead of the critically sampled ones
Keywords :
FIR filters; band-pass filters; discrete Fourier transforms; filtering theory; frequency division multiplexing; modulation; signal reconstruction; signal sampling; transmultiplexing; DFT modulated transmultiplexers; critically sampled systems; filter banks; narrow band signal; orthogonal frequency division multiplex; orthogonal transmultiplexers; oversampled FIR transmultiplexers; oversampled OFDM systems; receiver; rectangular window; signal reconstruction; wide-band signal; Costs; Filter bank; Finite impulse response filter; Lubricating oils; OFDM; Petroleum; Prototypes; Signal processing; Turning;
Conference_Titel :
Digital Signal Processing Proceedings, 1997. DSP 97., 1997 13th International Conference on
Conference_Location :
Santorini
Print_ISBN :
0-7803-4137-6
DOI :
10.1109/ICDSP.1997.628085
