Wireless networks enable mobility, multihoming, and Delay Tolerant Networks. In such networking environments, the principles of the Internet, i.e., the end-to-end principle and the combination of location and identification in IP addresses, cannot be applied. In this paper, we propose a scalable application centric approach for mobility and multihoming that is able to interconnect highly hetero...

In delay tolerant networks, custody transfer can provide certain degree of reliability as a custodian node cannot discard a message unless its life time expires or the custody is transferred to another node after a commitment. This creates a challenging decision making problem at a node in determining whether to accept a custody transfer: on one hand, it is beneficial to accept a large number o...

Delay Tolerant Networks (DTNs) is a network, where synchronous connectivity among all nodes doesn’t exist i.e. end to end connectivity not mandatory to be present. The major problem of DTN is how to route a packet from one terminal to another. Due mobility of nodes, unreliable and temporary connectivity the routing problem becomes more complex. It is very tedious to design the routing protocol ...

Delay tolerant network (DTN) is a sparse wireless mobile network that does not guarantee a path between a source and a destination at any time. In DTN, one critical issue is to reliably deliver data with low latency. In an N -node network, naive forwarding approaches such as flooding and its derivatives make the routing cost very high (O(N)). Recently, an approach called delegation forwarding (...

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...

Mobility models that have been used in the past to study delay tolerant networks (DTNs) have been either too complex to allow for deriving analytical expressions for performance measures, or have been too simplistic. In this paper we identify several classes of DTNs where the dynamics of the number of nodes that have a copy of some packet can be modelled as branching process with migration. Usi...

The delay tolerant networks (DTNs) is characterized by frequent disconnections and long delays of links among devices due to mobility, sparse deployment of devices, attacks, and noise, etc. Considerable research efforts have been devoted recently to DTNs enabling communications between network entities with intermittent connectivity. Unfortunately, mobile devices have limited energy capacity, a...

With the proliferation of mobile communications, new kinds of network architectures are being defined over the existing static one. Delay-Tolerant Networks (DTN) come to fill in a gap in the existing networking technology: they provide support for communication between peers when there is no end-to-end path available between them. Message forwarding in DTNs can be handled in many ways. In this ...

The Delay Tolerant Networking Architecture (DTN) has been proposed for use in challenged networks that suffer from intermittent connectivity or high delay. The DTN architecture and the bundle protocol presents a standard method to interconnect heterogeneous challenged networks using asynchronous message switching. It provides a framework for dynamic routing, contact scheduling, naming, reliabil...

It is challenging to deliver messages in a network where no instant end-to-end path exists, so called Delay-Tolerant Network (DTN). Node encounters are used for message forwarding. In this paper, we propose a DTN routing protocol SMART. SMART utilizes the travel companions of the destinations (i.e. nodes that frequently meet the destination) to increase the delivery opportunities while limiting...