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Secure Physical Layer Network Coding: Challenges and Directions

When physical layer network coding(PNC), in which electromagnetic (EM) waves are mixed before forwarding them, have show that it can significantly improve the throughput of system, there are some special security problems at this same time. This paper contributes this following: Firstly, based on analyzing how physical layer network coding to run, some security problems, such as destroying requirement, amplitude attacks and energy attacks, are dug, and one basic solution is showed to deal with them. Secondly, one thinking which integrate Cloud Computing with Network Coding is proposed. Its core is to construct one everywhere, terminal-switch and down-top computing network.