Abstract: This paper proposed a multi-slice multi-cover routing(MKCR) protocol in wireless multimedia sensor networks.We used video sensors with fixed FoVs and fixed location during the monitoring.The purpose is to enhance surveillance quality while providing multi-dimension coverage for key objectives.With cooperation of multi-sensors,the protocol computes multi-slice and k-cover paths,as well as allocates each sensor’s practicing time,in order to prolong the network lifetime.We also studied and designed two algorithms named MKCR-K and MKCR-T.The former focuses on the situation where k requests are determined by the system before computing the k-cover paths.The later determines the coverage requirement of each target according to sensor deployment,with the objective of achieving multi-coverand energy efficiency.Our simulation results show that the proposed MKCR can coordinate the working sensors and meet multi-cover requirement for key objectives,in the meanwhile,prolong the network lifetime.

Key words: Wireless multimedia sensor networks,Event monitoring,Multi-cover