Directed diffusion: a scalable and robust communication paradigm for sensor networks
MobiCom '00 Proceedings of the 6th annual international conference on Mobile computing and networking
Research challenges in wireless networks of biomedical sensors
Proceedings of the 7th annual international conference on Mobile computing and networking
Building efficient wireless sensor networks with low-level naming
SOSP '01 Proceedings of the eighteenth ACM symposium on Operating systems principles
Low-Power Wireless Sensor Networks
VLSID '01 Proceedings of the The 14th International Conference on VLSI Design (VLSID '01)
Robomote: enabling mobility in sensor networks
IPSN '05 Proceedings of the 4th international symposium on Information processing in sensor networks
Controllably Mobile Infrastructure for Low Energy Embedded Networks
IEEE Transactions on Mobile Computing
A survey on clustering algorithms for wireless sensor networks
Computer Communications
Mobile data collector strategy for delay-sensitive applications over wireless sensor networks
Computer Communications
CollECT: Collaborative event detection and tracking in wireless heterogeneous sensor networks
Computer Communications
A Data Gathering Algorithm for a Mobile Sink in Large-Scale Sensor Networks
ICWMC '08 Proceedings of the 2008 The Fourth International Conference on Wireless and Mobile Communications
Adaptive location updates for mobile sinks in wireless sensor networks
The Journal of Supercomputing
Fast track article: Improved sensor network lifetime with multiple mobile sinks
Pervasive and Mobile Computing
Improving network lifetime with mobile wireless sensor networks
Computer Communications
Using predictable observer mobility for power efficient design of sensor networks
IPSN'03 Proceedings of the 2nd international conference on Information processing in sensor networks
Sensor networks with mobile agents
MILCOM'03 Proceedings of the 2003 IEEE conference on Military communications - Volume I
SOFSEM'06 Proceedings of the 32nd conference on Current Trends in Theory and Practice of Computer Science
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Energy consumption has always been the most serious issue to consider while deploying Wireless Sensor Networks (WSNs). Sensor nodes are limited in power, computational capacities and memory so reporting the occurring of specific events, such as fire or flooding, as quickly as possible using minimal energy resources is definitely a challenging issue. In this work, we propose a novel, reactive and energy-efficient scheme in order to report events. In our algorithm, nodes that detect a certain event will organize themselves into a cluster, elect a clusterhead that will collect data from the cluster members, aggregate it and forward it to the mobile sink. Our approach considers the signal strength received from the mobile sink as well as the residual energy of sensor nodes. It is worth to mention that our scheme is completely reactive, so no pre-configuration phase is needed, which will lead to a high energy saving. In order to implement and evaluate our algorithm, we used Opnet simulator. A new Opnet sensor node model, where the network layer is implemented from scratch, is also proposed in this paper; our scheme is implemented using Opnet Process Modeling Methodology (PMM).