Biomedical Engineering Reference
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loop-free multipath routing only to desired destinations. Thus, the overhead is
reduced even in a varying topology.
2. Kim et al. [
6
] have proposed a reverse AODV (R-AODV) routing mechanism
which attempts multiple route replies. In mobile ad-hoc networks, the nodes
move autonomously due to which the topology of the network is highly
dynamic. Ad-hoc routing protocols use single RREP along the reverse path.
The proposed R-AODV addresses the problem by attempting multiple route
replies. The proposed protocol introduces a novel aspect compared to other on-
demand routing protocols on ad-hoc Networks: it reduces the path fail cor-
rection messages and obtains better performance than the AODV and other
protocols have.
3. Tomar et al. [
6
] have proposed algorithm for selective flooding in place of
broadcasting to overcome flooding problems in the network. The proposed
algorithm reduces the routing packet overhead and can be incorporated in the
AODV algorithm.
4. Tang et al. [
6
,
7
], have proposed a robust AODV (RAODV) protocol for
building routes on-demand and maintaining them. The proposed protocol is
maintained by updating route information locally i.e., the active route infor-
mation is broadcasted only to 1-hop neighbors, thus, the overhead due to
updating is low. The RAODV is more robust and easily adapted to mobility
than the traditional AODV. Multiple routes are established by the proposed
protocol. Thus, when active route breaks, the best backup route can become the
active route avoiding unnecessary route discovery flooding.
5. Zahian Ismail and Rosilah [
8
]. In this chapter, we assessed the performance of
AODV routing protocol for different packet size in homogeneous and hetero-
geneous MANET through the OMNeT++ simulation. In the simulation, the size
of the packets transmit has a high impact on throughput and PDR in wireless
environment. Overall, the result shows as the size of packet increases, the
throughput and PDR will also increase except for certain circumstances when
the size of packets achieve certain limits as the large packet size keeps the
transport layer channel busy and it affected the value.
6. Zongwei Zhou [
2
]. In this chapter, a set of novel security mechanisms based on
the AODV are proposed. Three techniques, including digital signature, one-way
hash function, and double one-way hash verification ensure the authentication,
no repudiation, and integrity of important routing information in RREQ, RREP,
and RERR packet of AODV.
7. Saleem. Sheik Aalam et al. [
9
] Mobile ad-Hoc networks pose a problem of
finding stable multi-hop routes for communication between source to destina-
tion. This chapter proposes an adaptive routing protocol which extends ad-hoc
on-demand multipath distance vector (AOMDV) routing. Specifically, the
proposed approach (NP-AOMDV) focuses on the node prediction by using
different approaches. Predicting the node movement can be done by avoiding
the frequent link failures in ad-hoc environments. The performance of the
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