Title :
Analysis of OFDM/OQAM systems based on the filterbank theory
Author_Institution :
Frane Telecom Group, CNET/DMR, Cesson Sevigne
fDate :
6/21/1905 12:00:00 AM
Abstract :
A discrete-time analysis of the multicarrier modulation technique OFDM/OQAM is presented, leading to a discrete model of a modulated transmultiplexer. Based on a polyphase decomposition of this transmultiplexer, and assuming a perfect-transmission channel, we determine the mathematical conditions on the prototype filter allowing an exact cancellation of intersymbol and interchannel interference. For a non-perfect transmultiplexer the analytical expression of the maximum overall distortion is derived and two types of prototype functions are compared
Keywords :
OFDM modulation; adjacent channel interference; channel bank filters; filtering theory; interference suppression; intersymbol interference; quadrature amplitude modulation; telecommunication channels; transmultiplexing; ISI cancellation; OFDM/OQAM systems; discrete model; discrete-time analysis; filterbank theory; interchannel interference cancellation; intersymbol interference cancellation; mathematical conditions; maximum overall distortion; modulated transmultiplexer; multicarrier modulation; perfect-transmission channel; polyphase decomposition; prototype filter; prototype functions; Channel bank filters; Delay effects; Demodulation; Equations; Filter bank; Large Hadron Collider; OFDM; Prototypes; Sampling methods; Signal processing;
Conference_Titel :
Global Telecommunications Conference, 1999. GLOBECOM '99
Conference_Location :
Rio de Janeireo
Print_ISBN :
0-7803-5796-5
DOI :
10.1109/GLOCOM.1999.827610
