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This paper presents our work on the test bed implementation of hybrid ad hoc network. In mobile ad hoc network (MANET), nodes are equipped with wireless device which provides self-managing and self-organizing capability, even when there is no network infrastructure present. Ad hoc hybrid network which enables mobile nodes to form instant communication without depending on infrastructure network can communicate with the other devices through LAN or Internet. The function of ad hoc network is very much dependent on the routing protocol that determines the path between nodes in network. ad hoc on-demand distance vector (AODV) is a kind of a reactive routing protocol for ad hoc network. This protocol is the most popular and widely used routing protocol in research and deployment. In this work, we review and implement AODV routing protocol in a testbed consisting of some PCs, laptops (using Linux Red Hat 9.0 and Fedora Core 2), and PDAs Hewlett Packard iPAQ 5550 series (using Linux Familiar v0.7.2 with Opie 1.2). We particularly focus on the AODV-UU routing protocol. We provide packages (by cross compiling) AODV for PocketPC (PDA), and evaluate the packet delivery ratio, end-to-end delay, and routing overhead of different ad-hoc hybrid network topologies. The testbed implementation result for the average packet delivery ratio is 99.57%, and the end-to-end delay is 1.004 s and the routing overhead is 1,360.36 bps.
Date of Conference: 16-18 Nov. 2005