Muhammad Rehan Khalid and  Muhammad Haroon Siddiqui and  Danish Ilyas,  Evaluation of Efficient CSI Based Channel Feedback Techniques for Adaptive MIMO-OFDM Systems.   journal   = {International Journal of Electronics and Communication Engineering}, [online]. World Academy of Science, Engineering and Technology.
    August 2012, vol. 68(8). 738 - 743
    [viewed 26 April 2024]. Available from: https://publications.waset.org/pdf/13136.