Application of parallel redundancy in a Wi-Fi-based WNCS using OPNET
Mostafa Hendawy, Mohamed ElMansoury, Karim N. Tawfik, Mohamed M. ElShenawy, Alia H. Nagui, Ahmed Elsayed, Hassan H. Halawa, Ramèz M. Daoud, Hassanein Hamed Amer, Markus Rentschler, Hany M. ElSayed · 2014
A powerful approach to improve the performance of wireless communication is the parallel redundant transmission with dual-radio wireless devices. To further verify this approach in this work, an OPNET simulation is performed on a star-topology WNCS workcell with 30 sensor and actuator pairs that are equipped with dual-radios for parallel redundancy. The applied wireless simulation model is based on IEEE 802.11g (Wi-Fi) standard and a quantitative analysis of the effect of interference in an industrial environment, is presented. This study proved that parallel redundancy improves system performance under different interference environments.