12-09-2014, 04:28 PM
DISTRIBUTED TRAFFIC BY LOAD-BALANCING APPROACH FOR AOMDV IN AD-HOC NETWORKS PROJECT REPORT
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INTRODUCTION
A mobile ad-hoc network or MANET is a collection of mobile nodes sharing a wireless channel
without any 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 [1].
Among the limitations that blame the routing protocols currently used in mobile ad hoc networks
face the problem of load balancing distribution in the network. While some nodes may be
involved in routing, others are heavily congested and most of the routing network traffic. Because
of this inhomogeneous load distribution, the nodes loaded quickly consume their limited material
resources and show a high congestion. These effects can significantly degrade the performance of
ad hoc network.
AOMDV WITH LOAD BANACING
In this section, we present our load balancing implement in routing protocols.
The work of [14] shows that the load is maximum at the network center and the paths most used
by the packets pass through the center nodes of the network. As a result, the network load is
maxat the center and decreases gradually as one moves away from it.The load balancing
mechanism proposed in this section is based on this observation. So it would be sufficient to
distribute theload, in a balanced manner on the network, to find a mechanism that pushes the load
outside the center of the network, byselecting the least loaded paths.
PROPOSED ROUTING PROTCOL
In this section, we present our proactive routing protocol based on the proposed optimized
AOMDV structure
LB-AOMDV ROUTING PROTCOL
The protocol LB-AOMDV (Load Balancing-AOMDV) sought to maximize the lifetime of the
network and improve the performance obtained by the protocol AOMDV
We propose that any node seeking routes to destinations separated by more than two jumps that
are a priori different from the shortest path but less responsible than this. Indeed, for there may be
a better route than the shortest path, we suggest that the comparison of the optimality of the routes
from the shortest path is done through the following metric:
ELB-AOMDV ROUTING PROTCOL
The ELB-AOMDV (Energy Load Balancing-AOMDV) is a multipath routing protocol; the
different with LB-AOMDV is novel metric energy consumption of the node and energy of the
path.
Thus, the goal is to reduce the rate of control packet used to maintain the network by
incorporating a mechanism called "LB AOMDV" and to route around nodes have a long lifetime
(more energy)
In our approach, we consider only the energy (energy consumption of the node, energy
consumption and average energy of the road network). However, we also consider the rate of
energy consumption at a time instant i. For each node, we follow the following formula to
calculate the rate of energy consumption:
CONCLUSION
In this study, we proposed a new protocol routing load balancing framework for mobile ad hoc
networks based on an optimized distribution traffic construction.
First, we have proposed a new multipath routing protocolcalled LB-AOMDV with a new metric
which is flow of data to select the less congested routes.
Then, we add energy to our proposal LB-AOMDV protocol which includesdelay and throughput
parameters. It takes advantage ofthe RREQ messages to exchange the essentialinformation to
achieve the energy consumption.
The performance characteristic’s ELB-AOMDV and LB-AOMDV to life time in the ad hoc
network were analyzed at traffic distributed.
To demonstrate the effectiveness of our cybernetic structure, we proposed and implemented a
new a routing protocol ELB-AOMDV based on it. Simulation results show that routing protocol