Local Recovery of Wireless Multihop Infrastructure with the Autonomous Mobile Base Station

Wireless Multihop Infrastructures (WMIs) are promising network platforms for the applications such as smart cities, emergency responses, and outdoor events. On the other hand, the low cost maintenance and large coverage of WMIs are subject to the network dis-connectivity, which can be caused by node damage or energy depletion, especially in the emergency situations and off-grid locations. The end to end reach ability is essential for the WMI to provide the network service to users. To enable the sustainable network reach ability in the disconnected WMI, this paper studies local maintaining and recovery of network infrastructure by utilizing autonomous mobile base stations (MBSs). The proposed MBS approach, MBS-Fit, is a distributed mechanism that addresses pause control problem in terms of pause length and fitful pause positions such that MBS can provide reach ability for the disconnected WMIs. The network reach ability is mainly measured by the amount of packets arrived from users to the gateway through the WMI. We adopt packet level evaluation to study the automatic interactions of MBS with the static WMI objects for local recovery of network infrastructure. Simulation results reveal that the proposed MBS-Fit approach achieves up to 30 percent improvement of network reach ability in term of packet delivery compared with conventional MBS. MBS-Fit mechanism also enables up to 80 percent improvement in terms of packet forwarding number at MBS.