ADAPTIVE PRIORITY ALGORITHM FOR PMME PROTOCOL IN MULTI-EVENT WIRELESS SENSOR NETWORK

Abstract

Nowadays, multi-event Wireless Sensor Networks (WSNs) have a wide range of applications in healthcare, industry, agriculture monitoring, and automation. In these WSNs, there are various events or multi-priority data which can concurrently occur with different quality of service (QoS) requirements based on priority levels. In the previous research, we proposed and implemented PMME protocol for significantly reducing the chances of collision and the delay of all packet types in multi-event WSNs against QAEE and MPQ priority MAC protocols. However, our PMME protocol always fixed the value of data priority levels without considering the network density. Thus, in this paper, we analyze and evaluate the effects of network density on multi-event WSNs performance when using the PMME protocol. After that, we propose an Adaptive Priority Algorithm for PMME, namely APAP. The simulation of APAP shows that it is more efficient than PMME in terms of packet latency, energy and packet loss rate.