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Wireless networks are increasingly being employed to transfer highly sensitive information. Due to the broadcast nature of wireless channels, security issues have been taken as a critical role in wireless communications. A promising direction toward achieving secure wireless communications is physical-layer security, which is an approach exploiting the randomness of wireless channels to ensure secrecy...
This paper investigates cooperative jamming for secure connection in wireless networks. A cooperative jamming strategy is proposed to thwart eavesdroppers anywhere in the network, even if they are located close to the source or the destination. The basic idea is to defeat eavesdroppers by a divide and conquer strategy, and exploit the helpful interference from the source and the destination to circumvent...
Network coding has emerged as a promising technology to increase network capacity and robustness of ubiquitous networks. However, network coding systems are vulnerable to pollution attacks. In this paper, we propose adapkeys, an adaptive security scheme in network coding allowing participating nodes to rapidly detect corrupted packets generated from pollution attackers. Our work is an innovative adaptive...
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