Authentication for two-way relay channel with Physical-Layer Network coding

Physical Layer Network coding (PLNC) can significantly improve network performance, but some security issues arise due to the limited information available to the forwarders. This paper analyses authentication in networks with PLNC and show theoretical and practical security limits. In particular, we obtain a lower bound for the probability of an attacker being able to insert a false message such that the message is believed to come from a...