Abstract
In Delay tolerant network having intermittent connectivity so there is no guarantee of finding a complete communication path that connecting the source and destination. There no any end to end connectivity for delay-tolerant network selection of routing protocol is important to deliver the message in an efficient way and increases chance to deliver a message to the destination. Some existing routing protocols improve the delivery ratio but it also increases the overhead. Our paper proposed Contact History Based Routing (CHBR) that use Neighborhood Index and Time varying properties such as temporal distance, Temporal Diameter and centrality for benchmarking the existing routing protocol. First, temporal metrics are evaluated for synthetic and real trace data. Then CHBR protocol is compared with the Epidemic and PROPHET for delivery ratio, overhead and the number of messages dropped. This has been carried using Opportunistic Network Environment simulator under real and synthetic datasets.
Highlights
Provide examples of relevant academic disciplines for this journal: E.g., History; Education; Sociology; Psychology; Cultural Studies; Delay tolerant networks[1] or networks with intermittent connectivity networks are wireless networks often where, a communication path between a source node and destination node does not exist, either directly or through established routes by intermediate nodes. This situation occurs if the network is sparse and partitioned due to high mobility, or when the network extends over long distances; in these cases, the traditional routing protocols have been developed for ad hoc networks proved to be insufficient because they require the existence of end to end path in order to route the packets
There is scope to extend the work of extracting Neighborhood index and propose a new routing protocol using Time Varying graph NECTAR is flooding based routing algorithm so each node require high buffer size, so there is scope for integration of good message drop policy
We used ONE simulator [18] to evaluate our proposed protocol Contact History Based Routing (CHBR) and generate message state reports of for specific scenario of simulation Performance evolution of CHBR is compared with existing epidemic and Prophet routing
Summary
Provide examples of relevant academic disciplines for this journal: E.g., History; Education; Sociology; Psychology; Cultural Studies; Delay tolerant networks[1] or networks with intermittent connectivity networks are wireless networks often where, a communication path between a source node and destination node does not exist, either directly or through established routes by intermediate nodes. This protocol give better delivery ratio[3] but, wastes resources such as bandwidth, buffer of network. PROPHET[4] protocol uses the predictability values These values are calculated using history of encounters and based on that forwarding decision is taken. The work presented in this paper describes author’s contribution as: 1. Temporal and Static representation of network
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