期刊名称：Journal of Theoretical and Applied Information Technology
印刷版ISSN：1992-8645
电子版ISSN：1817-3195
出版年度：2013
卷号：58
期号：2
出版社：Journal of Theoretical and Applied
摘要：The field of ad hoc networks is very promising since it allows the spontaneous creation of a network without any infrastructure. An ad hoc network consists simply of user terminals that can communicate together without intermediate. Simple and intuitive way of designing ad hoc networks is to consider that they correspond to the ultimate generalization of wireless networks because they limit the maximum role of fixed infrastructure. This generalization is achieved by improving the connectivity capabilities of wireless LANs. The limited scope of the terminals requires the presence of a routing protocol for communication between distant entities. Several routing protocols have been proposed in the MANET group. They allow finding the shortest paths in terms of number of hops. As Quality of Service (QoS) is an important issue in all networks (IT and telecom) , it seems interesting to study ways to introduce this concept in mobile ad hoc networks ( MANETs ) where the terminals are in movement relative to each other . In fact, multimedia applications that we know today require QoS guarantees more or less important that it would be good proposed in such still experimental networks. QoS can be provided at different levels: application layer, transport layer, network layer, MAC layer, etc. In this article, we focus on routing solutions to ensure a certain quality of service in mobile ad hoc networks at the network layer. To achieve this goal, many practical issues are considered with proposed solutions. We provided Quality of services of ad hoc networks by analyzing performance of different routing protocols. Different scenarios with the Network simulator OPNET are performed. The test-bed is first described, followed by the results and analysis. We concluded the paper with a summary of the key results of the work.
关键词：Quality Of Services; Ambient Networks; MANET; AODV; OLSR; TORA
