Title :
A noise suppressing channel estimation for MB-OFDM UWB systems based on reticulation pilot
Author :
Zhu, Xingtao ; Cai, Kai ; Han, Hui ; Yang, Lei
Author_Institution :
Chongqing Commun. Coll., Chongqing, China
Abstract :
A noise suppressing channel estimation algorithm based on reticulation pilot is proposed in this paper for multi-band OFDM ultra wide-band communications. In this algorithm, reticulation pilot is used to avoid interpolating in frequency domain. Then time-sliding average and basis pursuit are used in time domain and frequency domain respectively to reduce the influence of noise, which improves the performance effectively. Simulation result demonstrates that the new algorithm has good performance in slow fading channel.
Keywords :
OFDM modulation; channel estimation; fading channels; interpolation; time-frequency analysis; ultra wideband communication; MB-OFDM UWB communication system; basis pursuit; frequency domain analysis; frequency domain interpolation; multiband OFDM ultra wide-band communications system; noise suppressing channel estimation algorithm; reticulation pilot; slow fading channel; time domain analysis; time-sliding average; Bismuth; Channel estimation; Channel models; Fading; Noise; OFDM; Ultra wideband technology; basis pursuit; channel estimation; reticulation pilot; ultra wide-band;
Conference_Titel :
Computer Science and Service System (CSSS), 2011 International Conference on
Conference_Location :
Nanjing
Print_ISBN :
978-1-4244-9762-1
DOI :
10.1109/CSSS.2011.5974439
