VISA: Virtual Scanning Algorithm for Dynamic Protection of Road Networks

J. Jeong, Y. Gu, T. He, D. Du
2009 IEEE INFOCOM 2009 - The 28th Conference on Computer Communications  
This paper proposes a VIrtual Scanning Algorithm (VISA), tailored and optimized for road network surveillance. Our design uniquely leverages upon the facts that (i) the movement of targets (e.g., vehicles) is confined within roadways and (ii) the road network maps are normally known. We guarantee the detection of moving targets before they reach designated protection points (such as temporary base camps), while maximizing the lifetime of the sensor network. The main idea of this work is virtual
more » ... scanwaves of sensing activities scheduled for road network protection. We provide design-space analysis on the performance of virtual scan in terms of lifetime and average detection delay. Importantly, to our knowledge, this is the first work to study how to guarantee target detection while sensor network deteriorates, using a novel hole handling technique. Through theoretical analysis and extensive simulation, it is shown that a surveillance system, using our design, sustains orders-of-magnitude longer lifetime than full coverage algorithms, and as much as ten times longer than legacy duty cycling algorithms. • A new architecture for surveillance in road networks. VISA is the first work tailored for road networks, leading to orders-of-magnitude longer system life for target intrusion detection, using a novel scan-based algorithm. • A sensing scheduling algorithm for an arbitrary road network. The working schedule of each sensor (i.e., when to wake up) is constructed in a decentralized way. The network-wide silent duration is computed by VISA sched-
doi:10.1109/infcom.2009.5062003 dblp:conf/infocom/JeongGHD09 fatcat:xxctprzmbja4plvlguqtfnmj64