An efficient Scalable structure-Free Intercluster multicast Routing (SAFIR) protocol for large tactical Mobile Ad hoc Networks

International audienceScalability is a fundamental requirement in the field of Mobile Ad hoc Networks with the current significant growth in military network capabilities, such as greater node counts, increased bandwidth, better routing times and decreased latencies. Indeed, the advent of the digitized battlefield defines the needs for tactical Mobile Ad hoc Networks, which are formed by hundreds to thousands of nodes. Consequently, the well-known challenging issues of multicasting in MANET become even more significant with these networks, since the legacy routing protocols do not scale with such tactical environments. We propose in this paper an efficient solution that meets the needs for a scalable multicast routing protocol for a large-scale tactical MANET. Relying on a clustered network, which is an appropriate solution to handle scalability, the protocol proposed in this paper defines how to achieve multicast communications between nodes that belong to different clusters

A Scalable Adaptation of the OLSR Protocol for Large Clustered Mobile Ad hoc Networks

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STAMP : Shared-Tree Ad hoc Multicast Protocol

International audienceMulticasting in mobile ad hoc networks (MANET) has received considerable attention and is extremely challenging due to the limited bandwidth and the dynamic topology characteristics of such networks (to name only a few). Moreover, the multicast capability of communications is going to be of great interest, especially in new military wireless environments for the digitized battlefield. Indeed, tactical MANETs, where large networks can be deployed, also add scalability constraints when designing a multicast routing protocol. Currently, the best response to scalability in ad hoc networks is to gather nodes into groups as a result of a clustering algorithm. The work of this paper focuses on solving the two related challenges: to achieve efficient and adaptive multicast communications firstly inside each cluster and secondly among the clusters. This paper presents a solution regarding the first challenge. We propose shared-tree ad hoc multicast protocol (STAMP), a core-based multicast routing protocol independent from the underlying unicast routing protocol. Compared to other shared-tree multicast protocols, STAMP achieves good performance even under mobility since it takes advantage from the broadcast capacity of the medium to deliver data on the tree (data forwarding based on mesh principles). Discrete event simulations were run to evaluate and to compare our method to other existing solution

An efficient Scalable structure-Free Inter cluster multicast Routing (SAFIR) protocol for large tactical Mobile Ad hoc Networks

International audienceScalability is a fundamental requirement in the field of Mobile Ad hoc Networks with the current significant growth in military network capabilities, such as greater node counts, increased bandwidth, better routing times and decreased latencies. Indeed, the advent of the digitized battlefield defines the needs for tactical Mobile Ad hoc Networks, which are formed by hundreds to thousands of nodes. Consequently, the well-known challenging issues of multicasting in MANET become even more significant with these networks, since the legacy routing protocols do not scale with such tactical environments. We propose in this paper an efficient solution that meets the needs for a scalable multicast routing protocol for a large-scale tactical MANET. Relying on a clustered network, which is an appropriate solution to handle scalability, the protocol proposed in this paper defines how to achieve multicast communications between nodes that belong to different clusters