Intelligent Covert Satellite Communication for Military Robot Swarm
| Autor: | Chaofan Chen, Shuai Wang, Li Li, Sheng Ke, Changhong Wang, Xiangyuan Bu |
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| Rok vydání: | 2020 |
| Předmět: |
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General Computer Science Computer science Real-time computing 02 engineering and technology polar codes satellite communication iterative decoding law.invention Diversity combining law 0202 electrical engineering electronic engineering information engineering General Materials Science multi-carrier synchronization Polar code Data stream mining covert communication 020208 electrical & electronic engineering Robot swarm General Engineering Swarm behaviour 020202 computer hardware & architecture Channel state information Communications satellite lcsh:Electrical engineering. Electronics. Nuclear engineering Military robot lcsh:TK1-9971 |
| Zdroj: | IEEE Access, Vol 8, Pp 5363-5382 (2020) |
| ISSN: | 2169-3536 |
| DOI: | 10.1109/access.2019.2963320 |
| Popis: | Military robot swarm becomes more and more important for contemporary military application. In order to satisfy sophisticated application scenarios, novel communication architecture for military robot swarm has to be conceived. In this paper, we propose a multi-carrier intelligent covert satellite communication (MCICSC) architecture based on electromagnetic environment sensing technology, in where the ability of dynamically adapting the system configuration to the holistic requirements of covertness, performance, and complexity can be considerably improved. Additionally, in order to solve the carrier synchronization problem in very low signal noise ratio (SNR) for each data stream of MCICSC, polar code (PC) is incorporated into the proposed MCICSC system. With the aid of the proposed polar code-aided multi-stream parallel feedback (PAMSPF) carrier synchronization scheme, the MCICSC system is capable of realizing high-precise carrier synchronization even in very low SNR region. Moreover, in order to further decrease the complexity of our MCICSC system, we also propose a polar code-based diversity combining (PBDC) scheme, which is capable of efficiently combing all the data streams without the aid of channel state information (CSI) estimation. Numerical simulations demonstrate that for MCICSC system the performance of the PAMSPF carrier synchronization and PBDC combining schemes can get extremely close to that of an ideally synchronized system. Complexity analysis of the proposed algorithms is given as well. |
| Databáze: | OpenAIRE |
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