Proper

Abstract

In this paper, we present a priority and delay aware packet transmission MAC Protocol which we call PDAP-MAC for some applications such as field monitoring in which an abnormal data and normal data may be generated. In this kind of WSNs applications, sensor nodes may send an abnormal data and normal data. Abnormal data packet may be generated when there is an event such as exceeding threshold value. These events are generally critical, so the abnormal data should be transmitted in limited time faster than the normal data to their final destination node, sink node. Therefore, the priority packet transmission mechanism is necessary in this application. The PDAP-MAC protocol reduces the abnormal packet transmission delay and average node energy consumption in comparison to existing related MAC protocols.