Download internet connectivity between mobile adhoc network using mobile ip

International Journal of Advanced Engineering Technology
E-ISSN 0976-3945
Review Article
INTERNET CONNECTIVITY BETWEEN MOBILE ADHOC
NETWORK USING MOBILE IP
Prof.Mrs. Sayali N.Mane 1, Prof.Mr.A.R.Nigvekar 2
Address for Correspondence
Department of Electronics and Telecommunication
1
D.Y.Patil College of Engg.Akurdi, Pune University, Maharashtra, India.
2
KIT, College of Engg., Kolhapur, Maharashtra, India.
ABSTRACT
Mobile ad hoc networking allows nodes to form temporary networks and communicate beyond transmitter range by supporting
multihop communication through IP routing. Routing in such networks is often reactive, i.e., performed on-demand, as opposed to
Internet routing that is proactive. As ad hoc networks are formed on a temporary basis, any IP address should be allowed to appear
in an ad hoc network. MlPMANET, a solution for connecting an ad hoc network, in which on-demand routing is used, to the
Internet.MIPMANET, provides Internet access by using Mobile IP with foreign agent care-of addresses and reverse tunneling.
This allows nodes to enjoy the mobility services of Mobile IP while at the same time the requirements on the ad hoc routing
protocol are kept to a minimum. Simulations of MIPMANET have been performed in Network Simulator 2. The Ad hoc Ondemand Distance Vector (AODV) routing protocol has been used for routing within the ad hoc network. These simulations show
that the ability to choose the closest access point to the Internet is worth extra work, as less traffic is generated in the network
resulting in lower delays and fewer dropped packets. This paper again tries to calculate nodal energy when packets are travel from
source to destination under different conditions.
KEYWORDS MIPMANET, Mobile Ad Hoc Networks, Internet Access, Mobile IP, AODV
I. INTRODUCTION
Mobile IP for Mobile Ad Hoc Networks (MIPMANET
has been analyzed by means of simulations using
Network Simulator 2. In the simulations the Ad hoc On
demand Distance Vector (AODV [2], [5]) routing
protocol has been used within the ad hoc network.
Mobile IP
Mobile IP solves the following two problems:
• If a node moves from one link to another
without changing its IP address, it will be
unable to receive packets at the new link; and
• If a node changes its IP address when it
moves, it will have to terminate and restart
any ongoing communications each time it
moves.
Mobile IP allows mobile nodes that enter a foreign
network to register with a foreign agent and obtain a
care-of address (COA). This COA allows the mobile
node to send and receive data packets from the
networks other than its home network [6].
Mobile IP defines the following functional entities:
Home Network (HN): The network the mobile node
belongs to.
Home Agent (HA): A router on a mobile node’s home
network that maintains location information for the
mobile node and forwards packets to the node while
the node is away from its home network.
Foreign Network (FN): Any network other than the
home network of mobile node.
Foreign Agent (FA): A router on the mobile node’s
visited (foreign) network. The foreign agent cooperates
with the mobile node’s home agent to deliver packets
to the mobile node.
Care-of Address (COA): A temporary address
IJAET/Vol.III/ Issue I/January-March, 2012/39-41
assigned to the mobile node that reflects its current
network, and used to deliver packets destined to it.
Mobile IP allows mobile nodes that enter a foreign
network to register with a foreign agent and obtain a
care-of address (COA). This COA allows the mobile
node to send and receive data packets from the
networks other than its home network
MIPMANET
MIPMANET is designed to provide nodes in ad hoc
networks with access to the Internet and the mobility
services of Mobile IP. The solution uses Mobile IP
foreign agents as access points to the Internet in order
to keep track of in which ad hoc network a node is
located and to direct packets to the border of that ad
hoc network.
In short, MIPMANET works as follows:
I) Nodes in an ad hoc network that want Internet access
use their home address for all communication and
register with a foreign agent.
2) To send a packet to a host on the Internet: Tunnel
the packet to the foreign agent with whom you are
registered.
3) To receive packets from hosts on the Internet: The
packets are routed to the foreign agent by ordinary
Mobile IP mechanisms. The foreign agent will then
deliver the packets to the node in the ad hoc network.
4) Nodes that do not require Internet access will see the
ad hoc network as a stand-alone network, i.e., they will
not need any know ledge about routes to destinations
outside of the ad hoc network.
The layering of Mobile IP and ad hoc routing
functionality is illustrated in Fig. 1. By the use of
tunneling, the ad hoc network becomes transparent to
Mobile IP.
International Journal of Advanced Engineering Technology
A layered approach with tunneling is used for the
outward data flow to separate the Mobile IP
functionality from the ad hoc routing protocol. All this
makes it possible for MIPMANET to provide Internet
access with the ability for nodes to select and perform
seamless switching between multiple access points.
2. SIMULATIONS
Since MIPMANET's only modifications to Mobile IP
concerns the communication between the foreign
agents and visiting nodes, focused on the wireless part
of the scenario. Communication in the simulations is
carried out between wireless visiting nodes and wired
correspondent nodes. It is duplex; both the visiting
nodes and their correspondent nodes are constant bit
rate (CBR) sources. The mobility in the simulations is
about 1.5 m/s; the nodes themselves move at random
absolute speeds below 8 m/s. The simulation study has
evaluated what is the energy level of one node in the
network while it come under different scenarios and
what is energy level of 10 different nodes for the same
scenario. For getting these points all trace files are
observe. And the energy level chart of node/s with
different scenarios shown above;
Fig.1.Conceptual view of MIPMANET
Node Energy
0.8
N o d e E n erg y
0.7
0.6
0.5
Node Energy
0.4
0.3
0.2
0.1
0
1
2
3
4
5
6
7
Different Scenario
Fig2: One node with seven scenes
1
0.9
N o d e E n erg y
0.8
0.7
0.6
0.5
Node Energy
0.4
0.3
0.2
0.1
0
1
2
3
4
5
6
7
8
Different Nodes
Fig3: One scene with ten nodes
IJAET/Vol.III/ Issue I/January-March, 2012/39-41
E-ISSN 0976-3945
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International Journal of Advanced Engineering Technology
Mobile IP Overhead(packets)
9000
8000
7000
6000
5000
Broadcast
4000
Unicast
3000
2000
1000
0
1
2
3
4
5
6
7
8
Number of MIPMANET nodes
Fig4: Mobile IP Overhead
3. CONCLUSION
This paper has presented a solution of how to
interconnect an ad hoc network with the Internet called
MIPMANET. Ad hoc networking enables IP mobility
within a network whereas Mobile IP enables IP
mobility between networks. By combining these two,
MIPMANET allows mobile nodes to enjoy extended IP
mobility. The simulation study has evaluated what is
the energy level of one node in the network while it
come under different scenarios and what is energy
level of 10 different nodes for the same scenario. For
getting these points all trace files are observe. Node
energy at ten node setup will be more peaks are visible
it seems that more drop in packet. Other hand we
worked with 10 node configuration seems system little
bit stable. This paper leads to give new exposure for
mobile based system using MIPMANET to ensure the
secure communication between the network entities.
REFERENCES
1.
2.
3.
4.
5.
6.
"The Internet Engineering Task Force (IETF),"
Webpage, http://www.ietf.org/.
Charles E. Perkins and Elizabeth M. Royer, "Adhoc on demand distance vector routing," in
Proceedings of the 2nd
IEEE Workshop on
Mobile Computing Systems and Applications, Feb.
1999, pp. 90-100.
Charles E. Perkins, "RFC 2002: IP mobility
support," Oct. 1996, Updated by RFC~290. Status:
PROPOSED STANDARD.
Kevin Fall and Kannan Varadhan, ns Notes and
Documentation, The VINT Project, Work in
progress.
Charles E. Perkins, Elizabeth M. Royer, and Samir
R. Das, "Ad hoc on-demand distance vector
(AODV)routing," Internet draft (work in progress),
IETF Mobile Ad Hoc Networks Working Group,
June 1999, draft-ietf-manet-aodv-03.txt.
Hui Lei and Charles E. Perkins, "Ad hoc
networking with Mobile IP," in Proceedings of 2nd
European Personal Mobile Communication
Conference, Sept. 1997.
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E-ISSN 0976-3945