24-07-2012, 04:54 PM
Randomized Multipath Routing and Data Collection in WSN
Randomized Multipath Routing and Data Collection in WSN by naveenbtlit.pptx (Size: 478.94 KB / Downloads: 26)
What is sensor node?
The sensor nodes, also known as motes or simply nodes are small and energy constrained devices that have the ability of sensing the surrounding environment.
A sensor node is a node in a wireless sensor network that is capable of performing some processing, gathering sensory information and communicating with other connected nodes in the network.
What is Wireless Sensor Network?
A Wireless Sensor Network (WSN) , is composed by two types of nodes: sensor nodes and sink nodes.
The sensor nodes, also known as motes or simply nodes are small and energy constrained devices that have the ability of sensing the surrounding environment.
The sink, also known as base station, is a more powerful node that behaves as an interface between the sensor nodes and the clients.
PROBLEM DEFINITION:
Data security is ensuring that data is kept safe from corruption and access to it is suitably controlled.
Of the various possible data security threats encountered in a WSN’s, the two types of attacks are compromised node (CN) and denial of service (DoS).
Guaranteeing data security is particularly challenging because node compromises are doubly problematic, both in terms data confidentiality and availability.
Functional Requirements:
The system should have the following input/output, processing and error handling functionalities.
Encryption and Decryption of message should take accurately.
Dividing of message to shares by the source node and rebuild of original message from minimum shares by base station should be accurate.
Source node should use all its neighbor nodes to distribute the shares to provide dispersive effect to routing.