Wireless sensor network nodes (motes) often spend time busy-handling while communicating with peripherals such as radios, analog-to-digital converters (ADCs), memory devices, and sensors. The periods of handling radio will waste time and energy when packets are flooded to the sensor node. This thesis presents a predictive model to estimate a possible flood of incoming packets, and then to decide if the node will keep on receiving packets.;Another essential problem a sensor node must deal with is stack overflow. This occurs during program execution when a fixed-sized buffer on the stack has too much data copied into it. This causes the data to overwrite into adjacent memory locations. It can affect the behavior of the program itself. As the embedded software working on the node must be safe, such errors are destructive. The thesis presents a static stack-size analyzing method to handle this type of errors.
展开▼
