02-07-2013, 12:30 PM
UNDERSTANDING NODE LOCALIZABILITY OF WIRESLESS AD HOC AND SENSOR NETWORKS
UNDERSTANDING NODE.pptx (Size: 277.94 KB / Downloads: 19)
INTRODUCTION
It is highly important for nodes in wireless ad-hoc and sensor networks to be localizable.
Many efforts have been made to solve the problem whether a network can be localized or not.
Here our aim is to locate a node in a wireless network for better communication.
EXISTING SYSTEM
Existing studies only examine whether the network is localizable as a whole or not.
In existing system we use Beacons to locate a node in a network.
But we have few disadvantages, like
Cost issue
Chances of data loss
Redundancy
PROPOSED SYSTEM
We analyze the limitation of previous works and propose a new concept of node localizability.
Here we divide the network into different zones.
We choose a zone leader for each zone, which maintains all the information of rest of the nodes.
If the zone leader is moved to other zone then it acts as normal node.
The advantage here is we can even transfer data between the nodes in a network.
A direction of future research with good potential is localizability with distance measuring errors.
WSN Creation
In this module WSN is created based on the distance, which is calculated using Polynomial Algorithm.
Here we are adding any number of nodes into WSN.
Each zone will have a sensor and each node radius is predefined.