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Sociedade Brasileira de Telecomunicações

WSN Coverage Improvement with ROF in Bus Topology for Smart Cities


This work proposes an experimental coverage evaluation of a Wireless Sensor Network (WSN) connected with Radio-over-Fiber (RoF) network operating as system backhaul that can be implemented in WSN under the Internet of Things (IoT) context. The RoF is assembled in a bus topology and has a radio repeater for signal distribution to the WSN. Impairments present in RoF systems that degrade the RF signal are analyzed. The main parameter used to evaluate the WSN coverage of this system is distance by Packet Error Rate analysis. The results show that the radio repeater device brings benefits to signal quality, improving the area coverage of a WSN. The bus topology used for RoF reduces equipment cost.

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