Physical Layer Security Method Applicable To Non-Orthogonal Multiple Access System

摘要

#$%^&*AU2020100505A420200514.pdf#####Abstract The invention aims to provide a physical layer security and secrecy method of a wireless cellular network based on NOMA-CoMP, which considers the physical layer security of a non-orthogonal multiple access system of multi-cell NOMA sub-channel differentiation based on cooperative multi-point network research, considers the performance of a NOMA-CoMP system implementing an amplification forwarding (AF) strategy at a relay under the condition that eavesdroppers exist, and analyzes and derives expressions of secrecy rates of NOMA sub-channels, a global secrecy outage probability and secrecy outage probabilities of the sub-channels. Finally, it is proved that the global secrecy outage probability and the secrecy outage probability of each sub-channel tend to be constant with the increase of a signal-to-noise ratio, and the factors affecting the global outage probability of the NOMA-CoMP system are verified.1/2 sub-channel SI sub-channel S2 eavesdropper El "ea ~ropperE2 cell edge user Fig.1 to 41 10 20 A0 10 SO IAI iInItas-lss~ rtio 1411 Fig.2