期刊名称：International Journal of Research and Innovation in Computer Engineering
电子版ISSN：2249-6580
出版年度：2012
卷号：2
期号：2
页码：211-218
出版社：Innovation Science Publications
摘要：Mobile Ad Hoc Networks are autonomous and decentralized wireless systems. MANETs consist of mobile nodes that are free in moving in and out in the network. Nodes are the systems or devices i.e. mobile phone, laptop, personal digital assistance, MP3 player and personal computer that are participating in the network and are mobile. These nodes can act as host/router or both at same time. They can form arbitrary topologies depending on their connectivity with each other in the network. These nodes have the ability to configure themselves and because of their self-configuration ability, they can be deployed urgently without the need of any infrastructure. A key feature of these networks is their ease of deployment that makes it ideally suitable for battlefield, search and rescue and disaster relief operations. Nodes in these networks operate with power limited batteries, and the bandwidth is constrained as these are wireless networks. MANET (Mobile Ad hoc NETworks) which is a working group at the Internet Engineering Task Force (IETF) focuses on developing the standards for these networks. One of the MANET standardized ad hoc networking protocols is Ad hoc On-demand Distance Vector routing (AODV) which was published as a RFC in 2003 (RFC 3561). There are several implementations and simulators are available for AODV protocol. In our work we will address performance criteria of AODV networks using the OPNET simulator. AODV model was added to the OPNET simulator. Several simulations of AODV networks in OPNET were done to investigate the behavior of transport layer protocols, both UDP and TCP when using in AODV networks. Results were analyzed for both UDP and TCP separately. Unidirectional video streaming was used to analyze the UDP communication, while TCP performance was analyzed using file downloads via FTP (File Transfer Protocol).
