Munnujahan Ara,  Security over OFDM Fading Channels with Friendly Jammer.   journal   = {International Journal of Electronics and Communication Engineering}, [online]. World Academy of Science, Engineering and Technology.
    March 2015, vol. 100(4). 952 - 958
    [viewed 09 May 2024]. Available from: https://publications.waset.org/pdf/10001046.