Applying task division techniques on wireless multimedia sensor networks to improve lifetime

Abstract This paper introduces two novel techniques, TDMEN-CACHE and TDMEN-INTERSEC, designed to enhance load balancing and energy efficiency in Wireless Multimedia Sensor Networks (WMSNs). These techniques leverage temporal and spatial redundancies to optimize task division among sensor nodes, reducing energy consumption and extending network lifetime. TDMEN-CACHE minimizes reprocessing by utilizing cached data from previous multimedia events, while TDMEN-INTERSEC capitalizes on overlapping sensing areas to distribute processing tasks among neighboring nodes. The proposed methods were evaluated using real-world case studies in precision agriculture and bird monitoring, demonstrating significant improvements in energy efficiency, event detection rates, and network longevity compared to conventional solutions. A packet loss model was also integrated to simulate real-world communication scenarios, further validating the robustness of the techniques under varying conditions.