Delay-tolerant networks (DTNs) have the potential to interconnect devices in regions that current networking technology cannot reach. Delay Tolerant Networks are utilized in various operational environments, including those subject to disruption and disconnection and those with high-delay, such as Vehicular ad-hoc Networks (VANET). Vehicular networks can be seen as an example of hybrid delay to...

Reeective systems can be used to ease the implementation of fault tolerance mechanisms in distributed applications as show in Anc95, Fab94]. In this paper we introduce a new model for reeective computations, and we show how it can be used for building up fault tolerant applications.

Delay tolerant networks (DTNs) are networks whose nodes have low connectivity and/or unreliable links. Because of these characteristics, DTN nodes use a store-carry-and-forward technique to deliver data through the network. Communication over DTN relies on intermediate nodes sharing their resources and can be abused by resource hogs, i.e. individuals who generate messages at a rate that is much...

Present day Internet conventions show wasteful execution in those systems .where the availability between end hubs has discontinuous property because of element topology or asset imperatives. System situations where the hubs are described by operation opportunistic availability are alluded to as Delay Tolerant Networks (DTNs). Exceedingly usable in various pragmatic applications, for example, l...

In this paper, we propose a coverage measurement protocol (CMP) which can provide the base station an accurate and in-time measurement of the current connected coverage in an energy-efficient way, and our CMP is location-error tolerant. Moreover, the major component of our CMP, i.e., BOundary Node Detection (BOND) scheme, can be reused to provide many other functionalities for WSNs.