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A SIMPLIFIED RESIDUAL ISI CANCELLATION METHOD FOR OFDM SYSTEM
Zhi Yang * #,ZEMIN LIU
BUPT
*Correspondence author
#Submitted by
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Funding: none
Opened online: 7 July 2006
Accepted by: none
Citation: Zhi Yang,ZEMIN LIU.A SIMPLIFIED RESIDUAL ISI CANCELLATION METHOD FOR OFDM SYSTEM[OL]. [ 7 July 2006] http://en.paper.edu.cn/en_releasepaper/content/7500
 
 
A decision-aided method is developed for the orthogonal frequency division multiplexing (OFDM) systems to eliminate the residual intersymbol interference (ISI) introduced by the channel impulse response that exceeds the length of the guard interval. The method uses the decisions to estimate the residual ISI by FFT and IFFT with a very low computational complexity, and remove the residual ISI directly. Simulations for the application of the residual ISI cancellation algorithm to the Wireless LAN system based on IEEE Std 802.11a are performed. The simulation results show that the residual ISI cancellation algorithm provides good performance improvements on static fading ISI channels.
Keywords:OFDM WLAN residual ISI
 
 
 

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