Reliable Event-Detection in Wireless Visual Sensor Networks Through Scalar Collaboration and Game-Theoretic Consideration

Recent Advances and Challenges in Wireless Multimedia Sensor Networks

“…Other studies in the literature, use the same means of solving the problem, as shown by Kandris et al (2011), andCzarlinska &Kundur (2008). In the works referred to, once the sensor nodes detect an event in a certain region, the node(s) that is nearest to the event captures the multimedia content and sends it to the sink.…”

On privacy and security in distributed visual sensor networks

“…From the point of view of the cluster head, each sensor reporting its binary decision may be in error due to attack with some unknown probability q [5]. The effect of the active attack is to alter a decision 0 (privacy enabled) to a 1 (privacy disabled), or vice versa and must thus be mitigated.…”

“…This signifies that the scalar decisions d where d = [d1, · · · , dn] should have a weight (number of 1s) that is plausibly close to np (especially for large n where the actual weight approaches np on average). Since the attacker does not know the exact value of p (it depends both on the PDF of the sensed event and the threshold T h ), the optimal choice of q may be determined based on game theoretic analysis [5], the results of which we now summarize. The attacking network must select a value of q that is small and that decreases with increasing cluster size n to be stealthy.…”

“…1, while T can be determined without knowledge of the attack parameter q, the resulting probability of detection β cannot be determined without it. Thus, the analysis of [5] provides the missing parameter required to determine the optimal detector performance.…”

C2EM: cloud-assisted complex event monitoring in wireless multimedia sensor networks

“…Many recent works have been proposed for enhancing event monitoring performance, including multimedia coding [2][3][4], event coverage [5][6][7], and event detection [8][9][10]. For multimedia coding-related works, as it relates to the transmission and exchange of large amounts of data, in addition to computation-intensive features, it also has resource-demanding features.…”