Cooperation between Trust and Routing Mechanisms for Relay Node Selection in Hybrid MANET-DTN

Abstract

Today's mobile networks require integration of the different networks in order to transport data between mobile devices. The main problems of all networks occur if the communication paths are disconnected for a short time. The hybrid MANET-DTN is an evolution of the Mobile Ad Hoc Networks (MANET) and Delay/Disruption Tolerant Network (DTN) and it gives the possibilities of data transport between the disconnected islands of the nodes. The key problem is how to select reliable and secure nodes to transport messages between isolated islands with limited connectivity. The selection of the relay nodes is a critical factor because the data are transported via these devices in hostile environments. Two algorithms for a relay node selection based on trust are introduced. These algorithms are activated if the connections are disrupted. The selected relay nodes transport data across the disconnected environment via store-carry-forward mode. The proposed algorithms enable selecting reliable relay nodes based on collecting routing information and contact history. We introduce the network performance analyses of these algorithms. The main idea of the analyses is studying how the algorithms can affect the behaviour of the routing and forwarding mechanisms in the simulator OPNET modeler.

Coherence Key Based Node Authentication for Routing in Mobile Ad Hoc Networks

“…But, the attack detection rate was not sufficient. The cooperation between trust and routing mechanism was intended in [6] to elect reliable and secure the data transmission through selecting malicious nodes. Service Authentic Trust and Coherence Key Based Secured Routing for Mobile Ad Hoc Network [7] and Service Authentic Trust and Reputation Scheme for Secured Routing in Mobile Ad Hoc Networks [8] proposed to authenticate the mobile nodes in MANET.…”

“…However, it does not present more security service. A hybrid Intrusion Detection System (IDSs) scheme was intended in [12] for intrusion detection in MANETs. The hybrid IDS scheme reduces the power consumption and also attains a high detection rate.…”

“…So a network with higher PDR is considered as a good one. Packet Delivery ratio has been computed as the ratio between the total Number of Packets received (PR) and total number of Packets sent (PS) to the particular node from the source node.PDR= (PR /PS)*100(12)…”

Tools for evaluation of social relations in mobility models

“…Routing protocols and forwarding techniques of MANET-DTN needs to handle those situations. The main problem is the selection of reliable and secure nodes that are responsible for transportation of messages between isolated islands with limited connectivity [1]. By using real human mobility models, movement and disconnections are not only more realistic but also the selection of the reliable and secure nodes is more effective.…”

“…DTN by the selects devices that is are considered as the best carrier of the message to the destination device. Therefore, the connection of MANET-DTN networks also known as hybrid MANET-DTN networks integrates the benefits of the MANET routing protocols in the end-to-end environment where all devices are connected and benefits of DTN forwarding techniques when no end-to-end path exists [1]. Researchers and scientists are still trying to create new routing protocols for these networks [2,3].…”