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The use of wireless sensor networks (WSNs) can be advantageous in applications that serve in hostile environments such as security surveillance and military battlefield. The operation of a WSN typically involves collection of sensor measurements at an in-situ Base-Station (BS) that further processes the data and either takes action or reports findings to a remote command center. Thus the BS plays...
In recent years, Wireless Sensor Networks (WSNs) have become valuable assets to both the commercial and military communities with applications ranging from industrial control on a factory floor to reconnaissance of a hostile border. In both applications, the sensors act as data sources and forward information to a central sink or base station (BS). The unique role of the BS makes it a natural target...
In this article, we propose a model to compare strategies to deploy a multiple brokers overlay to support a publish/subscribe middleware in wireless sensor networks. We provide expressions for the expected memory size required for buffering packets and the energy consumption at each node and evaluate how many brokers are necessary in a scenario and to compare brokers placement strategies. We demonstrate...
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