Optimal path in dynamic and stochastic networks

International audienc

Multicast Authentication Framework for Hierarchical Networks using Chinese Remainder Theorem

For dense deployment of sensor nodes required in many environmental monitoring applications, an hierarchical network organization offers distinct advantages over flat networks. Broadcast and multicast, being the principle modes of communication in these networks, require confidentiality and authentication to prevent adversaries from broadcasting false messages. In this work, an authentication framework for hierarchical networks is proposed that permits authenticated and secure broadcast from base station as well as middle tier nodes using Chinese remainder theorem(CRT). The proposed protocol uses different prime numbers in each cluster to generate unique CRT solutions for authenticating multicast messages by cluster head. We shall describe our strategy for the distribution of prime numbers to establish initial trust in the network. Further, we shall prove that multicast authentication using CRT is ideal for clustered network organization in terms of energy efficiency and tolerance to attacks. Keywords

Traffic volume and speed measurement using V2I and GPS

International audienc

V2I based measurement of vehicle speed and traffic volume

International audienc

Travel time measurement system using vehicle-to-infrastructure communication

International audienc

Traffic volume and speed measurement using V2I and GPS

International audienc

V2I based measurement of vehicle speed and traffic volume

International audienc

Vehicle speed and volume measurement using vehicle-to-infrastructure communication

International audienc

Wireless communication-based measurement of vehicle speed and traffic volume

International audienc