Title :
A method of equalization of OFDM signal with inter-symbol and inter-channel interferences
Author :
Itami, Makoto ; Takano, Hiroshi ; Ohta, Hiroki ; Itoh, Kohji
Author_Institution :
Dept. of Appl. Electron., Sci. Univ. of Tokyo, Japan
Abstract :
A method of equalization of an OFDM (orthogonal frequency division multiplex) signal is described. An OFDM signal is not much affected by multipath distortions when using a guard interval technique. However, the transmission efficiency degrades because it requires a fixed time interval. The improvement of the transmission efficiency, by equalizing the multipath distortion, where the delay time is longer than the guard interval length, is discusse. This method is examined by computer simulations and the characteristics are confirmed
Keywords :
adaptive equalisers; delays; frequency division multiplexing; interference suppression; intersymbol interference; multipath channels; BER; OFDM signal; computer simulations; delay time; equalization; guard interval length; inter-channel interference; inter-symbol interference; multipath distortion; orthogonal frequency division multiplexing; transmission efficiency; Degradation; Delay effects; Demodulation; Digital TV; Distortion; Fading; Frequency division multiplexing; Interchannel interference; OFDM modulation; Propagation delay;
Conference_Titel :
Singapore ICCS '94. Conference Proceedings.
Print_ISBN :
0-7803-2046-8
DOI :
10.1109/ICCS.1994.474096
