An Efficient Strategy for Enhancing Robustness and Immunization in Wireless Sensor Networks

To provide cost-effective protection for sensor networks, We introduce an immunization method where the percentage of required vaccinations for immunity are close to the optimal value of a targeted immunization scheme.Our strategy retains the advantage of being purely local, without the need of knowledge on the global network structure. The method consists of selecting the vertex with the highest degree within a distance d and asking for a neighbor that has more links than himself or more than a given threshold and immunizing him. Analysis and simulation results show that the above method is valid.It enhances network robustness against virus and provide useful hints in the search of optimal immunization strategies as the development and deploying of a sensor network system.