Physical layer security of non-orthogonal multiple access in cognitive radio networks
| Autor: | Zhongwu Xiang, Yingbo Hu, Yueming Cai, Weiwei Yang, Xiaoli Sun |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Computer science
Network security business.industry Physical layer 020206 networking & telecommunications 020302 automobile design & engineering 02 engineering and technology Spectral efficiency medicine.disease Interference (wave propagation) Noma Cognitive radio 0203 mechanical engineering 0202 electrical engineering electronic engineering information engineering medicine Underlay business Network model Computer network |
| Zdroj: | WCSP |
| DOI: | 10.1109/wcsp.2017.8171042 |
| Popis: | This paper investigates physical layer security of non-orthogonal multiple access (NOMA) in cognitive radio (CR) networks. The techniques of NOMA and CR have improved the spectrum efficiency greatly in the traditional networks. Because of the difference in principles of spectrum improving, NOMA and CR can be combined together, i.e. CR NOMA network, and have great potential to improving the spectrum efficiency. However the physical layer security in CR NOMA network is different from any single network of NOMA or CR. We will study the physical layer security in underlay CR NOMA network. Firstly, the wiretap network model is constructed according to the technical characteristics of NOMA and CR. In addition, new exact and asymptotic expressions of the security outage probability are derived and been confirmed by simulation. Ultimately, we have studied the effect of some critical factors on security outage probability after simulation. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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