Comparison of Different Reconfigurable Directional Antennas for Improving WSN Autonomy

Most of the Wireless sensor netwot. Most of the Wireless sensor networks (WSN) are using passive Omni-Directionnal antennas (ODA). Reconfigurable Directional Antennas (RDA) have the potential to reduce data collision and increase the communication range when compared to ODA solution. In this paper, a comparison of two different RDA specifically designed for WSNs, including the Single Pole N Through (SPNT) and the Digital Tunable Capacitor (DTC), is presented. In order to demonstrate the benefits of using RDAs in terms of Received Signal Strength Indicator (RSSI), Packet Error Rate (PER), data collision avoidance and end-to-end delay, OMNeT++ simulations are performed for a single hop autonomous WSN. Moreover, a mobility scenario is also used to investigated the adaptabilityof using RDAs in the context of WSNs.