To achieve this goal DSR is modified by using route ranking technique in order to load balancing, to avoid congestion and lower packet delivery.
Key words: Proactive protocol, Reactive protocol, Hybrid protocol, NS2, Performance evaluation
 Chai-Keong Toh.
"A Comprehensive Performance Analysis of Proactive, Reactive and Hybrid MANETs Routing Protocols" IJCSI International Journal of Computer Science Issues, Vol.
Mobile ad hoc networks pose various kinds of security problems, caused by their nature of collaborative and open systems and by limited availability of resources. In our work we look at AODV in detail, study and analyses various attacks that can be possible on it. Then we look into some existing mechanism for securing AODV protocol. Our proposed work is an extension to Adaptive-SAODV of the secure AODV protocol extension, which includes tuning strategies aimed at improving its performance. In A-SAODV an intermediate node makes an adaptive reply decision for an incoming request that helps to balance its load that is over-burdened by signing and verification task of incoming messages. Namely, we propose a modification to adaptive mechanism that tunes SAODV behavior. In our paper we have proposed an extension to Adaptive-SAODV of the secure AODV protocol extension, which includes further filtering strategies aimed at further improving its network performance. We have analyzed the how our proposed algorithm can help in further improvement of performance in adaptive SAODV and also compared its performance with existing mechanisms using simulation.
The objective of this thesis is to study the impact of mobility on the performance of two mobile routing protocols, AODV, which is reactive routing protocol and OLSR, which is proactive routing protocol.
We firstly evaluated the performance in a static environment where nodes are arranged in static linear topology and concluded that OLSR outperformed AODV.
One such protocol is proposed in this thesis, whereby the most commonly used ad hoc on-demand distance vector (AODV) routing protocol is modified so that it uses the mobility metric “route lifetime” as a routing metric In addition, the route cache timeout or the route expiry timeout is set to the value of the route lifetime.
Simulations in the Global Mobile Information System Simulator (GloMoSim), a network protocol simulation software that simulates wireless and wired network systems, demonstrate an increase in packet delivery ratio and a decrease in mean end-to-end latency, in comparison to the AODV protocol.
Abstract — A Mobile Ad-hoc Network (MANET) is a dynamic wireless network that can be formed without the need for any preexisting infrastructure in which each node can act as a router. One of the main challenges of MANET is the design of robust routing algorithms that adapt to the frequent and randomly changing network topology. A variety of routing protocols have been proposed and several of them have been extensively simulated or implemented as well. In this thesis we compare and evaluate the performance of two types of On demand routing protocols- Ad-hoc On-demand Distance Vector (AODV) routing protocol, which is unipath and Adhoc On-demand Multipath Distance Vector (AOMDV) routing protocol. In this paper we note that on comparing the performance of AODV and AOMDV, AOMDV incurs more routing overhead and packet delay than AODV but it had better efficiency when it comes to number of packets dropped and packet delivery.A mobile ad-hoc network or MANET is a collection of mobile nodes sharing a wireless channel without a centralized control or established communication backbone. They have no fixed routers with all nodes capable of movement and arbitrarily dynamic. These nodes can act as both end systems and routers at the same time. When acting as routers, they discover and maintain routes to other nodes in the network. The topology of the ad-hoc network depends on the transmission power of the nodes and the location of the mobile nodes, which may change from time to time. One of the main problems in ad-hoc networking is the efficient delivery of data packets to the mobile nodes where the topology is not pre-determined nor does the network have centralized control. Hence, due to the frequently changing topology, routing in ad-hoc networks can be viewed as a challenge. 1.
Jsim: A simulator written in java is Jsim. To extend Jsim for WSN a framework is used adhoc routing protocol as AODV, free space model and DSR are supported by wireless sensor network.
Algorithms used in thesis writing concepts are Reliable Reactive Routing Enhancement (R3E), Opportunistic routing (OR), Directed Minimum Weighted-degree Steiner Tree (DMWST), load balanced broadcast scheduling, SSO and PSO.
This thesis explores the potential benefits and the trade-offs in the use of prediction with the Ad-hoc On-demand Distance Vector (AODV) routing protocol.
For this purpose, a new routing protocol, Ad-hoc On-demand Distance Vector with Perfect Prediction (AODV-PP), has been created to propagate link duration prediction information for route establishment.