Lecture Notes in Computer Science, Computational Science – ICCS 2006: 6th International Conference, Reading, UK, May 28-31, 2006, Proceedings, Part I, pp.981-984
The specific characteristics of Wireless Sensor Networks (WSNs) have changed Quality of Service (QoS) support in these networks to a challenging task. In this paper, we propose a dispatcher as part of a message routing component in publish/subscribe WSNs. Some works consider link-based solutions to support real-time parameters in WSNs. These works do not take into account the dynamic behavior of WSNs with probable damaged nodes and links. The use of dispatcher can reduce the average message delay, whether the message has high priority or low priority. The dispatcher uses a scheduler to support real-time parameters, such as delay, and selects messages from two separate queues, namely, QoS queue and non-QoS queue. Simulation results show that our approach really reduces the average delay and increases the delivery rate for both QoS messages and non-QoS messages.
Computer Science ; Theory of Computation ; Software Engineering/Programming and Operating Systems ; Numeric Computing ; Information Systems and Communication Service ; Computer Imaging, Vision, Pattern Recognition and Graphics ; Simulation and Modeling ; Computer Science