Mobile Ad-Hoc Networks



  Mobile Ad-Hoc Networks.ppt (Size: 315 KB / Downloads: 7)

Characteristics of MANETs


Dynamic topology
links formed and broken with mobility
Possibly uni-directional links
Constrained resources
battery power
wireless transmitter range
Network partitions


Routing in MANETs



To find and maintain routes between nodes in a dynamic topology with possibly uni-directional links, using minimum resources.


The Dynamic Virtual Backbone


a possible way is to abstract mobility through aggregation
a dynamic group of nodes by preventing some information from moving out of the group, keeps mobility transparent to the rest of the network.


Routing in Kelpi


Area of operation divided into square geographical cells
In each cell one node is a router
Inter-cell communication is through routers
Routers transmit at a higher transmission power
Nodes communicate through their cell routers


Conclusion


Casual conferencing
low set-up time, cost preferred
Battlefield operations/disaster relief
infrastructure unavailable
Personal area networking
devices around the home/office