TY - JOUR AU - Thiem, Do Dac AU - Khuong, Ho Van PY - 2018 TI - Impacts of Licensed Interference and Inaccurate Channel Information on Information Security in Spectrum Sharing Environment JF - VNU Journal of Science: Computer Science and Communication Engineering; Vol 34 No 1 (2018) DO - 10.25073/2588-1086/vnucsce.199 KW - N2 - Spectrum sharing environment creates cross-interference between licensed network and unlicensed network. Most existing works consider unlicensed interference (i.e., interference from unlicensed network to licensed network) while ignoring licensed interference (i.e., interference from licensed network to unlicensed network). Moreover, existing channel estimation algorithms cannot exactly estimate channel information. In this paper, impacts of licensed interference and inaccurate channel information on information security in the spectrum sharing environment is analyzed under peak transmit power bound, peak interference power bound, and Rayleigh fading. Toward this end, a secrecy outage probability formula is proposed in an exact form and validated by simulations. Various results illustrate that secrecy outage probability is constant in a range of large peak interference powers or large peak transmit powers, and is severely affected by licensed interference and inaccurate channel information. UR - //jcsce.vnu.edu.vn/index.php/jcsce/article/view/199