Knowing who and when to deliver: An optimal stopping method for maritime data scheduling

The exponential growth of services demands on the sea drives the development of prospective maritime wideband networks. In this paper, the transmission of surveillance videos on board via a maritime wideband communication network is investigated. The latest Time Division Long Term Evolution (TD-LTE) and delay-tolerant networks (DTNs) technology are combined to construct a shore based network framework in order to provide a wide-range transmission over the sea. Accordingly, a video data store-carry-and-forward routing topology is utilized, tailoring for the intermittent network connectivity to efficiently deliver the video data. This study proposes a Two-step Time and Energy Oriented Optimal-stopping (TTEOO) algorithm leveraging backward induction method, based on the optimal stopping rules to schedule data delivery, under the constraint of end-to-end delay of video data and energy consumption of DTN throw box. Simulation results indicate that the proposed method can achieve low consumption cost and high data delivery ratio for the oversea video transmission applications.