Softwarecast : a code-based delivery Manycast scheme in heterogeneous and Opportunistic Ad Hoc Networks

In the context of Opportunistic Ad Hoc Networking paradigms, group communication schemes (Manycast) are difficult to conduct. In this article, we propose a general delivery scheme for Manycast group communications based on mobile code. Our proposal extends network addressing by moving from the static header field paradigm to a software code-based addressing scheme. We allow messages to be delivered using built-in software codes that consider application-defined, context-aware or history-based information. Additionally, we allow messages to carry a delivery state that permits them to perform refined delivery-decision-making methods. As a consequence of this scheme, we have found that new group communication schemes, besides the traditional ones, may be beneficial to improve the network performance and to provide new functionalities to emerging scenarios like intermittently connected networks of heterogeneous physical objects. We present an application of this scheme to solve, following an analytical delivery method, the problem of sending a message to k and only k nodes of a heterogeneous and opportunistic network scenario that fit best a given criterion. We show, using simulations, that our proposal performs better than traditional approaches. Finally, to show that our proposal is feasible, we present an implementation of our proposal in a real Opportunistic Ad Hoc network, a DTN network, compatible with the de facto standard Bundle Protocol

Two birds, one stone : using mobility behavioral profiles both as destinations and as a routing tool

We present HabCast, a profile-cast communication paradigm that learns about the mobility habits of the location-aware nodes of the network and uses this information both to route the messages, and to deliver them only to the nodes that match the target behavioral profile. HabCast substitutes destination's identifier by a mobility profile model called habitat, meaning that allows users to send messages "to any nodes who usually roams around this area" instead of sending messages intended to a node. HabCast is designed to operate without network infrastructure, using Opportunistic Networking strategies and operates in three phases: approximation, floating and delivery phase. HabCast enables new services and applications on Opportunistic Networking by automatically inferring the nodes' behavioral profiles and using them to define the messages' destinations. The overhead introduced by HabCast is evaluated using a proof-of-concept implementation, and its performance and feasibility is studied, through simulation, under the scope of a real carsharing application

Softwarecast : a code-based delivery Manycast scheme in heterogeneous and Opportunistic Ad Hoc Networks

In the context of Opportunistic Ad Hoc Networking paradigms, group communication schemes (Manycast) are difficult to conduct. In this article, we propose a general delivery scheme for Manycast group communications based on mobile code. Our proposal extends network addressing by moving from the static header field paradigm to a software code-based addressing scheme. We allow messages to be delivered using built-in software codes that consider application-defined, context-aware or history-based information. Additionally, we allow messages to carry a delivery state that permits them to perform refined delivery-decision-making methods. As a consequence of this scheme, we have found that new group communication schemes, besides the traditional ones, may be beneficial to improve the network performance and to provide new functionalities to emerging scenarios like intermittently connected networks of heterogeneous physical objects. We present an application of this scheme to solve, following an analytical delivery method, the problem of sending a message to k and only k nodes of a heterogeneous and opportunistic network scenario that fit best a given criterion. We show, using simulations, that our proposal performs better than traditional approaches. Finally, to show that our proposal is feasible, we present an implementation of our proposal in a real Opportunistic Ad Hoc network, a DTN network, compatible with the de facto standard Bundle Protocol

Two birds, one stone : using mobility behavioral profiles both as destinations and as a routing tool

We present HabCast, a profile-cast communication paradigm that learns about the mobility habits of the location-aware nodes of the network and uses this information both to route the messages, and to deliver them only to the nodes that match the target behavioral profile. HabCast substitutes destination's identifier by a mobility profile model called habitat, meaning that allows users to send messages "to any nodes who usually roams around this area" instead of sending messages intended to a node. HabCast is designed to operate without network infrastructure, using Opportunistic Networking strategies and operates in three phases: approximation, floating and delivery phase. HabCast enables new services and applications on Opportunistic Networking by automatically inferring the nodes' behavioral profiles and using them to define the messages' destinations. The overhead introduced by HabCast is evaluated using a proof-of-concept implementation, and its performance and feasibility is studied, through simulation, under the scope of a real carsharing application