Mesh Based Multicast Routing in MANET - Copy
-
Upload
rakhi-gupta -
Category
Documents
-
view
220 -
download
0
Transcript of Mesh Based Multicast Routing in MANET - Copy
-
8/22/2019 Mesh Based Multicast Routing in MANET - Copy
1/18
MESH BASED MULTICAST
ROUTINGIN MANET :
STABLE LINKAPPROACH
SHUBHAM MANDAL
1JS09IS059
-
8/22/2019 Mesh Based Multicast Routing in MANET - Copy
2/18
ABSTRACT The multicast mesh is constructed by using route
request and route reply packets with the help of
multicast routing information cache and link stability
database maintained at every node.
The stable paths are found based on selection of stable
forwarding nodes that have high stability of link
connectivity.
Mesh maintenance is done to avoid link failures.
-
8/22/2019 Mesh Based Multicast Routing in MANET - Copy
3/18
INTRODUCTION An ad-hoc network is self-organizing and adaptive. Mobile Ad Hoc Networks
(MANETs) has become one of the most prevalent areas of research in the recent
years because of the vulnerabilities .
MANET is the new emerging technology which enables users to communicate
without any physical infrastructure regardless of their geographical location.
The mobile ad hoc networks (MANETs) do not have fixed network
infrastructure, nodes can act as both host and router, nodes may be mobile,
nodes may have limited resources, limited battery life and they have capability
of self organization.
-
8/22/2019 Mesh Based Multicast Routing in MANET - Copy
4/18
MANET MULTICAST ROUTING
PROTOCOL
These are the properties which MANET should
possess :
Power efficient
Security
QoS
Reliability
Avoid overhead
-
8/22/2019 Mesh Based Multicast Routing in MANET - Copy
5/18
MANET VULNERABILITIESLack of centralized management
Cooperativeness
Dynamic topology
Limited power supply
Adversary inside the network
No predefined Boundary
-
8/22/2019 Mesh Based Multicast Routing in MANET - Copy
6/18
CLASSIFICATIONOF ROUTING
PROTOCOLSFORMANET Proactive Routing Protocols
Reactive Routing Protocols
Hybrid Routing Protocols
Unicast Routing Protocols
Multicast Routing Protocols
FIRST CRITERIA SECOND CRITERIA
-
8/22/2019 Mesh Based Multicast Routing in MANET - Copy
7/18
Tree based
Multicast ad hoc on-demand distance vector routing
protocol(MAODV)
Ad hoc multicast routing utilizing increasing ID-
number protocol(AMRIS)
Mesh based
On demand multicast routing protocol(ODMRP)
Dynamic core based multicast protocol(DCMP)
Neighbor supporting ad hoc multicast routing(NSMP)
-
8/22/2019 Mesh Based Multicast Routing in MANET - Copy
8/18
LINKSTABILITY BASED MULTICASTROUTING
Mesh creation through the route request (RR)
packets and route reply (RP) packets,
Finding stable routes between source to
destination by selecting stable forwarding nodes
(SFNs) using link stability metric,
Mesh maintenance and handling link failures.
-
8/22/2019 Mesh Based Multicast Routing in MANET - Copy
9/18
CONTROL PACKETS
Route Request Packets
Route Reply Packets
Route Error Packets
The fields of RR packet are as follows:
Source address
Multicast group address
Sequence number
Route Request flag
Previous node address
Power
Antenna gain
-
8/22/2019 Mesh Based Multicast Routing in MANET - Copy
10/18
LINKSTABILITY DATABASE
Each node maintains a link database information which
helps in establishing and maintaining destinations.
It maintains the following parameters:
Node ID
Power Level
Distance
Link quality
Stability factor
-
8/22/2019 Mesh Based Multicast Routing in MANET - Copy
11/18
MULTICAST MESH CREATION Multicast mesh creation involves two phases:
Request phase Reply phase
Request Phase: A source finds the multicast routes to its receivers by using
RR packets.
fig1. Route request path from S to R1 and R2
-
8/22/2019 Mesh Based Multicast Routing in MANET - Copy
12/18
Reply phase : In reply phase, RP packet is generated at a multicast receiver
after receiving a RR packet.
fig2.Reply paths from R1 to S fig3. Reply paths from R2 to S
-
8/22/2019 Mesh Based Multicast Routing in MANET - Copy
13/18
Finally, the created mesh between source Sand multicast receiversR1 and
R2 with x and y as forwarding nodes is shown in figure 4
fig4. Mesh created between source and receivers R1 and R2
-
8/22/2019 Mesh Based Multicast Routing in MANET - Copy
14/18
STABLE PATH FINDING INA MESH
In LSMRM, SFN selection among all forwarding nodes in the mesh is done
by a forwarding node by checking higher value of stability factorSij in its
MRIC.
fig5. SFN selection from R1 fig6. SFN selection from R2
-
8/22/2019 Mesh Based Multicast Routing in MANET - Copy
15/18
MESH MAINTENANCE
LSMRM detects two types of link
failures: Link failure between SFN nodes
Link failure between a multicastsource/receiver and a SFN
-
8/22/2019 Mesh Based Multicast Routing in MANET - Copy
16/18
MANET APPLICATION Military Battlefield
Commercial Sector
Local Level
Personal Area Network (PAN)
-
8/22/2019 Mesh Based Multicast Routing in MANET - Copy
17/18
CONCLUSION
The stability based multicast routing scheme in MANET
finds the multicast routes to receivers by using route
request and route reply packets with the help of routing
information maintained in MRIC and link stability
parameters maintained in link stability database on every
node in a MANET.
This scheme has significant improvement in terms of
reliability, security, QoS, control overhead.
-
8/22/2019 Mesh Based Multicast Routing in MANET - Copy
18/18