Hybrid satellite terrestrial relay networks with cooperative non-orthogonal multiple access
journal contributionposted on 13.08.2018, 10:19 by Xiaojuan Yan, Hailin Xiao, Kang An, Gan ZhengGan Zheng, Weiping Tao
In this letter, we investigate the outage probability (OP) and ergodic capacity of the downlink hybrid satellite terrestrial relay networks (HSTRNs) with a cooperative non-orthogonal multiple access (C-NOMA) scheme, in which a user with better channel condition acts as a relay node and forwards information to other users, thus alleviating the masking effect of users with poor channel conditions in heavy shadowing. Specifically, the exact analytical expression for the OP of the considered system is derived. Furthermore, the ergodic capacity expression is also developed to facilitate performance evaluation of the proposed framework. Finally, the simulations are provided to show the impact of key parameters on the considered system and the superiority of introducing the C-NOMA scheme to the HSTRNs.
This work was supported by the National Natural Science Foundation of China under Grants 61471392 and 61472094, the UK EPSRC under grant EP/N007840/1, and the Innovation Project of Guangxi Graduate Education.
- Mechanical, Electrical and Manufacturing Engineering