Capacity of Ad Hoc wireless networks
Proceedings of the 7th annual international conference on Mobile computing and networking
Wireless sensor networks: a survey
Computer Networks: The International Journal of Computer and Telecommunications Networking
Advances in Network Simulation
Computer
Global Clock Synchronization in Sensor Networks
IEEE Transactions on Computers
On Sensor Sampling and Quality of Information: A Starting Point
PERCOMW '07 Proceedings of the Fifth IEEE International Conference on Pervasive Computing and Communications Workshops
Adaptive random re-routing for differentiated QoS in sensor networks
VoCS'08 Proceedings of the 2008 international conference on Visions of Computer Science: BCS International Academic Conference
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The cost of a large wireless sensor network consisting of hundreds of devices may only be justified if it is deployed for multiple monitoring tasks. Introducing multiple tasks to the system however raises concerns regarding resource contention and quality of service (QoS). For example, rapid response tasks may have strict requirements with regards to data delivery latency, whereas data gathering tasks may be more lenient. In order to address the differential QoS challenge, we use the random re-routing (RRR) wireless sensor network routing protocol to prioritise the packets of some tasks above those of others. We extend the RRR protocol beyond that found in the previous literature to improve performance, and in simulation demonstrate an acknowledgement mechanism for adapting the packet priorities assigned to tasks.