- Normal nodes work perfectly in ideal environmental conditions.
- Failed nodes are simply those that are unable to perform an operation; this could be because of power failure and environmental events.
- Badly failed nodes exhibit features of failed nodes but they can also send false routing messages which are a threat to the integrity of the network.
- Selfish nodes are typified by their unwillingness to cooperate,as the protocol requires whenever there is a personal cost involved. Packet dropping is the main attack by selfish nodes.
- Malicious nodes aim to deliberately disrupt the correct operation of the routing protocol, denying network service if possible.
Dynamic Misbehavior: Dumb Behavior:
Dumb behavior is temporal in nature (as it is dependent on the effects of environmental conditions)
The presence of dumb nodes impedes the overall network performance
The sensed information can only be utilized if the connectivity between each dumb node with other nodes in the network could be re‐established
CoRD and CoRAD are two popular schemes that re‐establish the connectivity between dumb nodes with others.
No comments:
Post a Comment