Outage Performance of OSTBC-NOMA System in the presence of Channel Estimation Error and Feedback Delay

In this study, outage performance of non-orthogonal multiple access (NOMA) system with orthogonal space-time block coding (OSTBC) is investigated over Nakagami-m fading channels in the presence of channel estimation errors and feedback delay. In the system, one base station with multiple antennas serves simultaneously multiple mobile users with single antenna by using OSTBC technique. The outage probability related to any mobile user, which is expressed with the help of end-toend signal-to-interference plus noise ratio, is investigated through Monte Carlo simulations