Computer Science – Networking and Internet Architecture
Scientific paper
2011-04-06
International Journal of Computer Science Issues (IJCSI) Volume 8, Issue 1, January 2011
Computer Science
Networking and Internet Architecture
8 pages
Scientific paper
Nowadays, multimedia and real-time applications consume much network resources and so, need high flow rates and very small transfer delay. The current ad hoc networks (MANETs), in their original state, are not able to satisfy the requirements of quality of service (QoS). Researches for improving QoS in these networks are main topics and a subject of intensive researches. In Adhoc networks, the routing phase plays an important role for improving QoS. Numerous routing protocols (proactive, reactive and hybrid) were proposed. AODV (Adhoc On demand Distance Vector) is probably the more treated in literature In this article, we propose a new variant based on the AODV which gives better results than the original AODV protocol with respect of a set of QoS parameters and under different constraints, taking into account the limited resources of mobile environments (bandwidth, energy, etc...). The proposed variant (M-AODV) suggests that the discovering operation for paths reconstruction should be done from the source. It also defines a new mechanism for determining multiple disjoint (separated) routes. To validate our solution, simulations were made under Network Simulator (NS2). We measure traffic control and packet loss rate under diverse constraints (mobility, energy and scale).
Benmohamed Mohamed
Bilami Azeddine
Sedrati Maamar
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