Ahmed N. H. Alnuaimy and  Mahamod Ismail and  Mohd. A. M. Ali and  Kasmiran Jumari and  Ayman A. El-Saleh,  An Improved Algorithm for Channel Estimations of OFDM System based Pilot Signal.   journal   = {International Journal of Electronics and Communication Engineering}, [online]. World Academy of Science, Engineering and Technology.
    February 2009, vol. 26(2). 148 - 150
    [viewed 30 March 2020]. Available from: https://publications.waset.org/pdf/7910.