Content-based Filter Publish Subscribe Model for Real-time WSN applications

Abstract

In the recent years, the publish/subscribe (pub/sub) communication model has emerged as a suitable communication paradigm for large-scale distributed systems. That is due to its effective decoupling properties for the network’s participants in time, space, and synchronization. These properties are well-suited for Wireless Sensor/Actuator Networks (WSAN) applications. Data Distribution Service (DDS) is a well-known standard in the academic and industrial communities for supporting real-time distributed systems based on the pub/sub model. TinyDDS is a light weight and partial porting of DDS middleware to WSN platforms. The main objective of this paper is to use TinyDDS standard-based solution to minimize the energy consumption and maximize throughput of WSANs when applying the pub/sub interaction scheme, while maintaining the content-based filter QoS support. Adding content-based filter to the default TinyDDS (DTDDS) enable the WSAN to gain high performance in terms of packet delivery ratio and reduce the power consumption and we called this addition as CFTDDS. The Experiments s conducted in this work prove the efficiency of our proposal CFTDDS.