SmartHop: A Cloud-Driven Channel Hopping Algorithm for Improved IoT Network Connectivity and Stability
Jyotirmoy Banik, Il Han Kim, Jianwei Zhou, Xiaolin Lu, Andrea Fumagalli · 2018
Industrial IoT faces adversity in radio environment due to harsh physical condition and interference from co-located wireless systems. To mitigate these challenges, channel hopping is leveraged in a number of standards, including IEEE 802.15.4- 2015. The baseline version of the channel hopping described in this standard does not guarantee the best performance, especially in terms of network stability and latency. This paper illustrates the problem by means of a test-bed, and then proposes a channel blacklisting algorithm, which makes use of the channel quality statistics as they are stored in the Cloud. Claims of improvement are corroborated by the results obtained through simulation.