DSDV Extension to Enhance the Performance of Ad Hoc Networks in High Diverse-Velocity Environments
Date
2019-12-20
Authors
Jawad, Mada’ Abdel
Salah, Saeed
Zaghal, Raid
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Abstract
Mobile Ad-Hoc Networks (MANETs) are characterized as decentralized
control networks. The mobile nodes route and forward data based on
their routing information without the need for routing devices. In this type of
networks, nodes move in an unstructured environment where some nodes are
still fixed, others are moving in a constant velocity, and others move with diverse
velocities; and thus, they need special protocols to keep track of network
changes and velocity changes among the nodes. Destination Sequenced Distance-
Vector (DSDV) routing protocol is one of the most popular proactive
routing protocols for wireless networks. This protocol has a good performance
in general, but with high speed nodes and congested networks its performance
degrades quickly.
In this paper we propose an extension to the DSDV (we call it Diverse-
Velocity DSDV) to address this problem. The main idea is to modify the protocol
to include node speed, determine update intervals and the duration of settling
time. To evaluate the performance of the new protocol, we have carried a
number of simulation scenarios using the Network Simulator tool (NS-3) and
measured relevant parameters such as: packet delivery ratio, throughput, end-toend
delay, and routing overhead. We have compared our results with the original
DSDV and some of its new variants. The new protocol has demonstrated a
noticeable improvement of performance in all scenarios, and the measured performance
metrics outperform the others except the average delay where the performance
of the new protocol was modest.
Description
Keywords
MANET , DSDV , I-DSDV , E-DSDV , O-DSDV , Simulation Network Performance , NS3