Connectivity Maintenance in IoT-based Mobile Networks: Approaches and Challenges
Vahid Khalilpour Akram, Moharram Challenger · Annals of Computer Science and Information Systems · 2021
Connectivity is an important requirement in almost all IoT-based wireless networks.The multi-hop networks use intermediate nodes to create a communication path between other nodes.Hence losing some nodes may cut off all communication paths between other active nodes.Generally, the connectivity of a partitioned network can be restored by adding new or activating redundant nodes, moving available nodes to the new location, and increasing the wireless communication range of nodes.The restoration problem may have many constraints and sub-problems.The network may initially be disconnected, the nodes may be heterogeneous, reliable connections may be required between the nodes, we may have unreachable locations in the network area to put the new nodes or move exciting nodes, more than one node may fail at the same time and the expected coverage area may complicate the connectivity restoration problem.In this paper, we study the main challenges and methods of connectivity restoration in IoT-based wireless networks.