Title :
Iterative Interpolation Method for Multiband-OFDM Channel Estimation
Author :
Pölönen, Keijo ; Koivunen, Visa
Author_Institution :
Helsinki Univ. of Technol., Helsinki
Abstract :
Multiband orthogonal frequency division multiplexing (MB-OFDM) has been proposed for the high-data-rate system to be used in the wireless personal area networks (WPAN) of the future. The MB-OFDM system combines OFDM transmission with frequency hopping. It is an ultra-wideband (UWB) system transmitting OFDM symbols with the bandwidth of 528 MHz. This paper presents a low-complexity channel interpolation method that can be used together with a frequency domain channel estimator. The proposed algorithm achieves a performance increase of several decibels at the high SNR regime when compared to the conventional linear interpolation scheme. The complexity of the channel estimator is increased only slightly when the proposed interpolation method is applied.
Keywords :
OFDM modulation; channel estimation; interpolation; iterative methods; personal area networks; OFDM transmission; bandwidth 528 MHz; channel estimation; channel interpolation; frequency hopping; high-data-rate system; iterative interpolation method; multiband orthogonal frequency division multiplexing; multiband-OFDM; ultrawideband system; wireless personal area networks; Bandwidth; Channel estimation; Fast Fourier transforms; Frequency domain analysis; Frequency estimation; Interpolation; Intersymbol interference; Iterative methods; OFDM; Ultra wideband technology; channel estimation; interpolation; multiband OFDM; ultra-wideband;
Conference_Titel :
Ultra-Wideband, 2007. ICUWB 2007. IEEE International Conference on
Conference_Location :
Singapore
Print_ISBN :
978-1-4244-0521-3
Electronic_ISBN :
978-1-4244-0521-3
DOI :
10.1109/ICUWB.2007.4380946
