DTN Network: Optimal Cluster Head in DTN Routing Hierarchical Topology (DRHT)
| Autor: | Moha Hajar, Youssef Qaraai, Said Agoujil, El Arbi Abdellaoui Alaoui |
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| Rok vydání: | 2016 |
| Předmět: |
Computer science
Wireless ad hoc network Node (networking) 010401 analytical chemistry 020206 networking & telecommunications 02 engineering and technology Time to live Topology Metrics 01 natural sciences 0104 chemical sciences Hierarchical clustering 0202 electrical engineering electronic engineering information engineering Routing (electronic design automation) Cluster analysis Hierarchical routing |
| Zdroj: | Lecture Notes in Electrical Engineering ISBN: 9789811016264 UNet |
| DOI: | 10.1007/978-981-10-1627-1_9 |
| Popis: | In this paper, we study the problem of data routing with an optimal delay in the bundle layer, by exploiting : the clustering, the messages ferries and the optimal election of cluster head (CH). We first introduce the DTN routing hierarchical topology (DRHT) which incorporates these four factors into the routing metric. We propose an optimal approach to elect a CH based on four criteria : the residual energy, the intra-cluster distance, the node degree and the head count of probable CHs. We proceed then to model a Markov decision process (MDP) to decide the optimal moment for sending data in order to ensure a higher delivery rate within a reasonable delay. At the end, we present the simulation results demonstrating the effectiveness of the DRHT. Our simulation shows that while using the DRHT which is based on the optimal election of CH, the traffic control during the TTL interval (Time To Live) is balanced, which greatly increases the delivery rate of bundles and decreases the loss rate. |
| Databáze: | OpenAIRE |
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