1. Seminar On “Mesh Networking” Presented By: Vipin Mewar (05IT6017) M.Tech.(IT) School of Information Technology I I T Kharagpur

2. 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

3. 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.

4. 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

5. Infrastructure Mesh Networking Fig From : “Wireless mesh networks: a survey” available online at www.sciencedirect.com

6. Client Mesh Networking Fig From : “Wireless mesh networks: a survey” available online at www.sciencedirect.com

7. Hybrid Mesh Networking Fig From : “Wireless mesh networks: a survey” available online at www.sciencedirect.com

8. 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/

9. 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: Node123456 T-1 Entry211342 T-2 Entry332565 T-3 EntryNA64

10. 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/

11. How to make node tables??  Automatic Network Discovery  Logical Network Definition

12. Motivation For Mesh Networking  Provide Improvement in reliability  Provide Redundancy  Increase Coverage Area

13. Major Issues in Mesh Networking ??

14.  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

15.  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

16. Route Discovery Ad hoc On-Demand Distance Vector routing Algo. A B D C E G I H

17. Source Address Request ID Destination Address Source sequence Dest. Sequence Hop Count Format of Route Request packet Source Address Dest. Address Dest. Sequence Hop Count Life Time Format of ROUTE REPLY packet

18. 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

19. Application of Mesh Networking  Digital Home Networking  Emergency Response Agencies  Solution For Sensor Networks  Battle Field

20. 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/

21. Thank you !!