On Secrecy Performance of Multibeam Satellite System with Multiple Eavesdropped Users
Satellite communication system is expected to play an important role in wireless networks because of its appealing contributions to ubiquitous coverage, content multicast and caching, reducing user expenditure, and so on. However, due to the inherent broadcasting nature and serious channel conditions, satellite communication system is highly vulnerable to eavesdropping attacks. As an initial step towards this end, this paper focuses on the physical layer security technique and explores the secrecy performance of a multibeam satellite system, where multiple legitimate users are served and each user is exposed to an eavesdropper located in the same beam. With perfect channel state information at the satellite and adopting the complete zero-forcing approach for signal processing, we first derive the optimal beamforming vectors to maximize the achievable secrecy rate. Based on this, we further calculate the secrecy outage probabilities of an individual user and the whole system, respectively. Finally, simulation and numerical results are provided to show the secrecy performance of the multibeam satellite system.
KeywordsMultibeam satellite system Physical layer security Beamforming Secrecy outage probability
This work was supported in part by the Natural Science Foundation of China (NSFC) under Grant U1536202, Grant 61373173, and Grant 61571352; in part by the Project of Cyber Security Establishment with Inter-University Cooperation; and in part by the Secom Science and Technology Foundation.
- 10.Barros, J., Rodrigues, M.R.: Secrecy capacity of wireless channels. In: 2006 IEEE International Symposium on Information Theory, pp. 356–360. IEEE (2006)Google Scholar
- 13.Zou, Y., Zhu, J., Wang, G., Shao, H.: Secrecy outage probability analysis of multi-user multi-eavesdropper wireless systems. In: IEEE/CIC International Conference on Communications in China (ICCC), pp. 309–313. IEEE (2014)Google Scholar
- 14.An, K., Lin, M., Liang, T., Ouyang, J., Chen, H.: Average secrecy capacity of land mobile satellite wiretap channels. In: 8th International Conference on Wireless Communications & Signal Processing (WCSP), pp. 1–5. IEEE (2016)Google Scholar
- 15.An, K., Lin, M., Liang, T., Ouyang, J., Yuan, C., Lu, W.: Secrecy performance analysis of land mobile satellite communication systems over Shadowed-Rician fading channels. In: 25th Wireless and Optical Communication Conference (WOCC), pp. 1–4. IEEE (2016)Google Scholar
- 16.Yan, Y., Zhang, B., Guo, D., Li, S., Niu, H., Wang, X.: Joint beamforming and jamming design for secure cooperative hybrid satellite-terrestrial relay network. In: 25th Wireless and Optical Communication Conference (WOCC), pp. 1–5. IEEE (2016)Google Scholar
- 17.An, K., Lin, M., Liang, T., Ouyang, J., Yuan, C., Li, Y.: Secure transmission in multi-antenna hybrid satellite-terrestrial relay networks in the presence of eavesdropper. In: International Conference on Wireless Communications & Signal Processing (WCSP), pp. 1–5. IEEE (2015)Google Scholar
- 19.Yuan, C., Lin, M., Ouyang, J., Bu, Y.: Joint security beamforming in cognitive hybrid satellite-terrestrial networks. In: IEEE 83rd Vehicular Technology Conference (VTC Spring), pp. 1–5. IEEE (2016)Google Scholar
- 21.Series, P.: Propagation data and prediction methods required for the design of earth-space telecommunication systems. Recommendation ITU-R, 618-12 (2015)Google Scholar
- 23.Díaz, M.A., Courville, N., Mosquera, C., Liva, G., Corazza, G.E.: Non-linear interference mitigation for broadband multimedia satellite systems. In: International Workshop on Satellite and Space Communications ( IWSSC 2007), pp. 61–65. IEEE (2007)Google Scholar