ETD-MAC: An Event-Tracking Detecting MAC Protocol for Wireless Sensor Network

摘要

The TDMA MAC protocol is customarily used in event-driven WSN applications. But it only has good performance in the unmovable event detection, and can't cope with the event whose trend is variable. In this paper, an Event-Tracking Detecting MAC (ETD-MAC) protocol is proposed for event-tracking detection in densely deployed event-driven WSN. In this protocol, an energy-based clustering technique is used to achieve event-tracking detection and a sleeping mechanism is proposed for energy conservation. Moreover, a tight scheduling mechanism is proposed to reduce the latency. The protocol is compared with the cluster-based MAC protocol and S-MAC protocol on NS-2 and Mica2 platform respectively, and shows its superiority in energy, scalability and latency.