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78 results on '"Agoujil, S."'

1. Protector Control PC-AODV-BH in The Ad Hoc Networks

Author

Boujaada, S., Qaraai, Y., Agoujil, S., and Hajar, M.

Subjects
Computer Science - Cryptography and Security, Computer Science - Networking and Internet Architecture
Abstract

In this paper we deal with the protector control that which we used to secure AODV routing protocol in Ad Hoc networks. The considered system can be vulnerable to several attacks because of mobility and absence of infrastructure. While the disturbance is assumed to be of the black hole type, we purpose a control named "PC-AODV-BH" in order to neutralize the effects of malicious nodes. Such a protocol is obtained by coupling hash functions, digital signatures and fidelity concept. An implementation under NS2 simulator will be given to compare our proposed approach with SAODV protocol, basing on three performance metrics and taking into account the number of black hole malicious nodes, Comment: submit 15 pages, 19 figures, 1 table, Journal Indexing team, AIRCC 2016

Published
2016

4. Optimal Cluster Head in DTN Routing Hierarchical Topology (DRHT)

Author

Alaoui, E. A. A., Agoujil, S., Hajar, M., and Youssef Qaraai

Subjects
Computer Networks and Communications
Abstract

In delay tolerant networking (DTN), nodes are autonomous and behave in an unpredictable way. Consequently, a control mechanism of topology is necessary. This mechanism should ensure the overall connectivity of the network taking into account nodes’ mobility. 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 three 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.

Published
2022
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48. On New Knot Tables.

Author

Cattani, C., Atangana, A., Bulut, H., Hammouch, Z., Baskonus, H.M., Mekkaoui, T., Agoujil, S., Elmali, Ceren Sultan, Uğur, Tamer, and Kunduraci, Tuǧçe

Published
2018
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