期刊名称：International Journal of Computer Trends and Technology
电子版ISSN：2231-2803
出版年度：2015
卷号：20
期号：1
页码：19-27
DOI：10.14445/22312803/IJCTT-V20P104
出版社：Seventh Sense Research Group
摘要：Mobile Ad Hoc Network (MANET) is a temporary network that can be dynamically formed to exchange information by wireless hosts which may be mobile. The network is ad hoc because it does not rely on any preexisting network infrastructure like routers in wired networks. The devices in a MANET can communicate with each other without the help of any centralized administrator. Such networks have no fixed topology because of the high degree of node mobility. The nodes in a MANET sometimes act as routers to forward packets to each other. These nodes generally have a limited transmission range, so each node seeks the assistance of its neighboring nodes in forwarding packets.Thus data is sent between nodes by hopping through the intermediate nodes. Node mobility may cause the routes change. Hence efficient and reliable routing is one of the key challenges in mobile ad hoc networks. Many routing algorithms have been devised and developed for attaining this task. The unique feature of these protocols is their ability to trace routes in spite of a dynamic topology. This paper presents some of the important routing protocols designed for MANET among which DSR (Dynamic Source Routing) is considered in detail. MANET is used in a wide variety of areas like military environment to maintain information network between military personnel’s, civilian environment like Adhoc classrooms and conferences, emergency operations like search and rescue etc. Hence, security challenges of MANET are also a very important area which should be taken in to consideration. So in this paper some important routing algorithms are also presented which have their own way to establish the trust and transmit packets securely. These algorithms use DSR as the basis of routing technique and that is the reason why DSR is discussed in detail in this paper.
关键词：Wireless Ad Hoc Networks; Ad Hoc Network Routing Protocols; Trust based routing algorithms; Trust Levels
