Abstract The coronavirus disease 2019 (COVID-19) pandemic has spread worldwide and
caused negative economic and health effects. China is one of the most seriously affected …

Many applications of Internet of Things (IoT) have been implemented based on unreliable
wireless or mobile networks like the delay tolerant network (DTN). Therefore, it is an …

Disruption-tolerant networks (DTNs) have emerged as a paradigm shift for environments that
may not have a continuous network connection. Although DTNs were originally designed for …

In a Mobile ad hoc network (MANET), scalability, dynamic topology and high mobility are the
most significant challenges to perform the routing with improved network lifetime. According …

With the development of modern geography, new requirements have been put forward for
traditional geography teaching. Based on the implementation of secondary school …

When a delay/disruption tolerant network (DTN) is applied in an urban scenario, the network
is mainly composed of mobile devices carried by pedestrians, cars, and other vehicles, and …

The performance of delay tolerant networks (DTNs) can be influenced by movement model
in different application environments. The existing routing algorithms of DTNs do not meet …

Delay Tolerant Network (DTN) is playing a pivotal role in the future human living areas,
especially in the future development of smart cities. In the future smart cities, the available …

It is a fast and simple way to run a Delay Tolerant Network (DTN) by mobile terminals in an
urban environment, therefore DTN currently plays an important role as a network for Internet …

Most existing DTN routing algorithms can't show efficient network performance. Prophet is a
routing protocol widely used for DTNs. The delivery predictability of active nodes will …