Abstract
In Mobile Ad hoc Networks (MANET) nodes often change their location independently where neither fixed nor
centralized infrastructure is present. Nodes communicate with each other directly or via intermediate nodes.
The advantages of the MANET layout lead to self-structure and compatibility to most important functions such
as traffic distribution and load balancing. Whenever the host moves rapidly in the network the topology
becomes updated due to which the structure of MANET varies accordingly. In the literature, different routing
protocols have been studied and compared by researchers. Still, there are queries regarding the performance
of these protocols under different scenarios. MANETs are not based on a predesigned structure. In this paper,
the performance assessment of the Quality of Services (QoS) for different protocols such as Ad hoc On-Demand
Distance Vector (AODV), Temporally Ordered Routing Algorithm (TORA) and Zone Routing Protocol (ZRP)
in the existence of the various number of communicating nodes is studied. The performance matrices
throughput, end – to – end delay and packet delivery ratio are considered for simulations. Ns 2.35 simulator is
used for carrying out these simulations. Results are compared for AODV, TORA, and ZRP routing protocols.
The results show that AODV and TORA perform well in end – to – end delay as compared to zone routing
protocol. Zone routing protocol performs well in packet delivery ratio and throughput as compared to both the
other protocols.
Irfan Ahmad, Fahad Masood, Arbab Wajid Ullah Khan. (2020) Performance Assessment of QoS Using AODV, TORA and ZRP Routing Protocol in MANET , Mehran University Research Journal of Engineering & Technology, Volume 39, Issue 4.
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