Energy-Efficient Processing of Spatial Alarms on Mobile Clients

In this paper the authors present an energy efficient framework for processing spatial alarms on mobile clients, while maintaining low computation and storage costs. The approach to spatial alarms provides two systematic methods for minimizing energy consumption on mobile clients. First, they introduce the concept of safe distance to reduce the number of unnecessary mobile client wakeups for spatial alarm evaluation. This mechanism not only reduces the amount of unnecessary processing of the spatial alarms but also significantly minimizes the energy consumption on mobile clients, compared to periodic wakeups, while preserving the accuracy and timeliness of the spatial alarms.