Seminar On
“Mesh Networking”
Presented By:
Vipin Mewar
(05IT6017)
M.Tech.(IT)
School of Information Technology
I I T Kharagpur
Contents
What is mesh networking
Types of mesh networking
A mesh networking example
Motivation for mesh networking
Major issues of mesh networking
Application of mesh networking
What is Mesh Networking
Mesh networking has created
quite a buzz in the wireless community. It
promises
self-configuring,
multi-hop
networking capability that lowers node
costs and power consumption, and
increases reliability in a real-world noisy
environment.
Types of Mesh Networking
Mesh networking is typically implemented in two basic
modes: infrastructure and/or client meshing. To gain the
maximum benefit that meshing can offer, both modes need to
be supported simultaneously and seamlessly in a single
network.
Infrastructure Meshing
Client Meshing
Infrastructure Mesh Networking
Fig From : “Wireless mesh networks: a survey” available online at www.sciencedirect.com
Client Mesh Networking
Fig From : “Wireless mesh networks: a survey” available online at www.sciencedirect.com
Hybrid Mesh Networking
Fig From : “Wireless mesh networks: a survey” available online at www.sciencedirect.com
A Mesh Networking Example
Fig. From : “Wi.232DTS and Mesh Networking for short range applications in the US market “ by Steve
Montgomery avavilable at http:// www.radiotronix.com/support/
Enter Mesh Networking
Since we can determine which “nodes” in this network are
in range of the other “nodes” in the network, we could
build a small table into each of the nodes that may look
like this:
Node
T-1 Entry
1
2
2
1
3
1
4
3
5
4
6
2
T-2 Entry
3
3
2
5
6
5
T-3 Entry
NA
6
4
NA
NA
NA
Fig. From : “Wi.232DTS and Mesh Networking for short range applications in the US market “ by Steve
Montgomery avavilable at http:// www.radiotronix.com/support/
How to make node tables??
Automatic Network Discovery
Logical Network Definition
Motivation For Mesh Networking
Provide Improvement in reliability
Provide Redundancy
Increase Coverage Area
Major Issues in Mesh Networking ??
Topology Management
Providing self-configuring mechanisms for highly
dynamic mobile wireless nodes
 Developing a network control organization that
efficiently accommodates a large hierarchical network
including highly mobile nodes
Location Management
- Locating and tracking highly mobile nodes in a large
network
Routing Mangement
Managing routes to/from/through highly mobile
nodes in a large network
Network will be self configurable, no human
intervention needed even in a mobile configuration
Unlimited range with repeaters
Route Discovery
Ad hoc On-Demand Distance Vector routing Algo.
A
C
B
D
E
G
H
I
Source
Request
Address
ID
Destination
Source
Dest.
Hop
Address
sequence
Sequence
Count
Format of Route Request packet
Source
Dest.
Dest.
Hop
Life
Address
Address
Sequence
Count
Time
Format of ROUTE REPLY packet
So Mesh Networking IS
 Network Nodes can be Fixed or Mobile
 Network Size can be from 2 Nodes to unlimited
 Data can be sensors or anything that needs to be
monitored
 Power can be from batteries or AC mains
 Network will be self configurable, no human intervention
needed even in a mobile configuration
 Unlimited range with repeaters
Application of Mesh Networking
 Digital Home Networking
Emergency Response Agencies
Solution For Sensor Networks
Battle Field
References
1.http://www.infoworld.com/article/05/07/20/
2.http://mesh.nowwireless.com
3.http://www.oreillynet.com/pub/a/wireless/2004/01/22/wireless
mesh.html
4. http://wireless.industrial-networking.com/articles/
5. www.radiotronix.com/support/
Thank you !!