Optimal Sensor Placement in the Network Structure from a Defence Point of View

摘要

This article presents a method for optimising sensor placement in a general network topology. Sensor placement is calculated by balancing maximised closeness to the monitored nodes with sensor location distribution for protection. The model serves cyber defence planning and critical infrastructure defence. It uses node and link weights as parameters to describe information quantity, data importance to a defender, and criticality to the network operator. General network analysis, together with a penalty factor for describing distributed defence requirements, underpins the methodology. The Sprint operator network in the USA is used as an example to demonstrate the methodology.