Wireless information-theoretic security in MANETs

In this work, the relation between the key parameters of Wireless Information-Theoretic Security, namely the probability of non-zero secrecy capacity, the outage probability, and the shadowing deviation is investigated. The purpose is to provide a framework to identify the boundaries of secure communication from a physical layer standpoint in MANETs. This framework is heavily influenced by the intrinsic channel characteristics and propagation irregularities that deviate from simplistic path loss assumptions such as the free space model or any similar deterministic approach that underestimates the fluctuations of the received signal power. This paper provides, for the first time, a realistically confirmed method for evaluating the reliability of the Wireless Information-Theoretic Solution in an obstacle-dense topology where no central infrastructure exists, as a consequence of a natural or man-made disaster, where severe losses in signal transmission and noise meddle with secure and reliable communications. Thus, a robust tool to the cause of Public Safety is provided.