Rashid A. Fayadh and  F. Malek and  Hilal A. Fadhil and  Norshafinash Saudin,  Improved Rake Receiver Based On the Signal Sign Separation in Maximal Ratio Combining Technique for Ultra-Wideband Wireless Communication Systems.   journal   = {International Journal of Electronics and Communication Engineering}, [online]. World Academy of Science, Engineering and Technology.
    November 2013, vol. 84(12). 1654 - 1658
    [viewed 17 October 2019]. Available from: https://publications.waset.org/pdf/9996715.