Abstract
A wireless ad hoc network is a collection of specific infrastructureless mobile nodes forming a temporary network without any centralized administration. A user can move anytime in an ad hoc scenario and, as a result, such a network needs to have routing protocols which can adopt dynamically changing topology. To accomplish this, a number of ad hoc routing protocols have been proposed and implemented, which include dynamic source routing (DSR), ad hoc on-demand distance vector (AODV) routing, and temporally ordered routing algorithm (TORA). Although considerable amount of simulation work has been done to measure the performance of these routing protocols, due to the constant changing nature of these protocols, a new performance evaluation is essential. Accordingly, in this paper, we analyze the performance differentials to compare the above-mentioned commonly used ad hoc network routing protocols. We also analyzed the performance over varying loads for each of these protocols using OPNET Modeler 10.5. Our findings show that for specific differentials, TORA shows better performance over the two on-demand protocols, that is, DSR and AODV. Our findings are expected to lead to further performance improvements of various ad hoc networks in the future.
Highlights
A collection of autonomous nodes or terminals that communicate with each other by forming a multihop radio network and maintaining connectivity in a decentralized manner is called an ad hoc network
The behavior of ad hoc on-demand distance vector (AODV) and dynamic source routing (DSR) are consistent with the fact that once routes are created, the utilization of radio channel remains high for node communication
This work is the first attempt towards a comprehensive performance evaluation of three commonly used mobile ad hoc routing protocols (DSR, temporally ordered routing algorithm (TORA), and AODV)
Summary
A collection of autonomous nodes or terminals that communicate with each other by forming a multihop radio network and maintaining connectivity in a decentralized manner is called an ad hoc network. There is no static infrastructure for the network, such as a server or a base station The idea of such networking is to support robust and efficient operation in mobile wireless networks by incorporating routing functionality into mobile nodes. There are four major ad hoc routing protocols At this time, OPNET has three built-in models for DSR, AODV, and TORA ad hoc routing protocols. The other major protocol is destination sequence distance vector (DSDV). OPNET Modeler 10.5 version is used to simulate three ad hoc routing protocols, that is, DSR, AODV, and TORA. We evaluated all available metrics supported by OPNET for these protocols and performed a comparative performance evaluation Since these protocols have different characteristics, the comparison of all performance differentials is not always possible. (i) number of hops per route, (ii) traffic received and sent, (iii) route discovery time, (iv) total route requests sent, (v) total route replies sent, (vi) control traffic received and sent, (vii) data traffic received and sent, (viii) retransmission attempts, (ix) average power, (x) throughput, (xi) utilization
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: EURASIP Journal on Wireless Communications and Networking
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
