تحسين تعايش الشبكات غير المتجانسة ضمن بيئة إنترنت الأشياء

Abstract

The Internet of Things (IoT) is built by connecting wired and wireless networks to connect things. The difficulty in achieving high performance and satisfactory results lies in the heterogeneity of the networks operating within the same frequency range. The coexistence of ZigBee and Wi-Fi networks in the same location will affect the performance of ZigBee networks, as Wi-Fi networks have a high transmission power compared to ZigBee networks with low power and coverage. Wi-Fi networks operate within time slots, and since transmission is random, it is necessary to identify the available time slot in which ZigBee data is transmitted. To identify the appropriate time slot, the Binary Exponential Backoff algorithm was used, implemented using the MATLAB environment. Simulation results show that the probability of successful transmission is related to both the load size and transmission rate, as well as to the variation in the time slot. Furthermore, choosing a low value for the transmission probability improves the throughput by up to 3% compared to traditional methods.