Title :
A novel channel estimation error minimizing interpolation technique for OFDM systems
Author :
Ullah Khan, Latif ; Zafar, M. Haseeb ; Khattak, M. Irfan ; Khan, Noel
Author_Institution :
Dept. of Electr. Eng., Univ. of Eng. & Technol., Peshawar, Pakistan
Abstract :
The use of the efficient interpolation technique with low estimation error is imperative for estimating the channel impulse response at data subcarriers for pilot assisted channel estimation techniques in the Orthogonal Frequency Division Multiplexing (OFDM) systems. In this paper, a novel interpolation technique based on one dimensional interpolation is presented. The proposed interpolation technique is based on minimizing the interpolation error and channel noise inherent in Least Square (LS) estimation. A comparative analysis of the proposed interpolation with conventional one dimensional interpolation techniques shows its performance improvement.
Keywords :
OFDM modulation; channel estimation; interpolation; least squares approximations; OFDM system; channel noise; interpolation error; least square estimation; novel channel estimation error; novel efficient interpolation technique; orthogonal frequency division multiplexing systems; Channel estimation; Estimation; Fading; Frequency response; Frequency-domain analysis; Interpolation; OFDM; LS Estimator; OFDM; channel noise; interpolation error; interpolation technique;
Conference_Titel :
Communication Systems, Networks & Digital Signal Processing (CSNDSP), 2014 9th International Symposium on
Conference_Location :
Manchester
DOI :
10.1109/CSNDSP.2014.6923920