HANAOUI, Mohamed Hassan II University Casablanca - CED Science Engineering, ENSEM, Lab RITM/ESTC, Morocco , AOUAMI, Rachid Hassan II University Casablanca - CED Science Engineering, ENSEM, Lab RITM/ESTC, Morocco , RIFI, Mounir Hassan II University Casablanca - CED Science Engineering, ENSEM, Lab RITM/ESTC, Morocco

Implementation of a Smart Antenna System for Wireless Sensor Networks

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Wireless Sensor Networks (WSNs) nodes are usually equipped with omnidirectional antennas, so the transmission energy is irradiated uniformly throughout the space surrounding the node and a sensible amount of energy is wasted if the sender requires to communicate only with a subset of the nodes in its physical proximity. In several applications, the network nodes are randomly deployed, therefore the whole wireless architecture should be characterized by a highly-dynamic and reconfigurable topology for guaranteeing an energy-efficient transmission. The integration of smart antenna system (SAS) in wireless sensor networks is a challenging and very attractive technical solution to improve the system capacity, the quality of service, and the power control. In this paper, we create a view of ground with nodes by using MATLAB, firstly nodes composed with Omnidirectional Antenna System (OAS) and secondly nodes composed of SAS, then we compare active communication using (SAS) and active communication using (OAS). The energy efficiency to bring by smart antenna system is described.

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omnidirectional antenna , smart antenna , nodes , wireless sensor network , energy efficiency

Mediterranean Telecommunications Journal

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