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Sensor network comprises of scattered sensor nodes with limited computational capabilities and battery power. The existing security solutions for traditional wireless networks can not be used because of the constraints associated with sensor network. We present secure sink node architecture as two-tiered scheme for sensor network security. The architecture protects the sink node from unauthorized access by surrounding it with two protection layers. Sink nodes listen to only inner layer nodes and inner nodes are allowed to communicate with only outer layer nodes. These protection layers are formed in an intelligent manner without violating constraints specific to sensor network. In order to enhance security, protection layers are re-adjusted in case of an attack. We present statistical analysis to elucidate the performance of proposed architecture.
What else can I help you with?
Is sink node source or destination?
sink node is source
What is difference between sink node and base station in WSN?
A WSN typically consists of a sink node sometimes referred to as a Base Station
What is definition of sink node?
It is similar to head node which gather, control data collected by other sensor node.
Can you provide an example of a solved maximum flow problem?
In a maximum flow problem, the goal is to determine the maximum amount of flow that can be sent from a source node to a sink node in a network. One example of a solved maximum flow problem is the Ford-Fulkerson algorithm applied to a transportation network where the source node represents a factory and the sink node represents a warehouse. The algorithm calculates the maximum amount of goods that can be transported from the factory to the warehouse through various paths in the network, taking into account the capacities of the edges connecting the nodes.
What is the Ford-Fulkerson algorithm used for in solving the maximum flow problem?
The Ford-Fulkerson algorithm is used to find the maximum flow in a network, which is the maximum amount of flow that can be sent from a source node to a sink node in a network.
Write an iterative function to search an element in a binary search tree?
_node* search (_node* head, _key key) { _node* node; for (node=head; node != NULL;;) { if (key == node->key) return node; else if (key < node.>key) node = node->left; else node = node->right; } return node; }
How to Print data of all nodes of linked list?
for (node=head; node!=null; node=node->next) printnode(node);
How to find the mirror image of a binary tree?
Refer to http://cslibrary.stanford.edu/110/BinaryTrees.html void mirror(struct node* node) { if (node==NULL) { return; } else { struct node* temp; // do the subtrees mirror(node->left); mirror(node->right); // swap the pointers in this node temp = node->left; node->left = node->right; node->right = temp; } }
Algoritm for deleting the last element from a list?
Given a list and a node to delete, use the following algorithm: // Are we deleting the head node? if (node == list.head) { // Yes -- assign its next node as the new head list.head = node.next } else // The node is not the head node { // Point to the head node prev = list.head // Traverse the list to locate the node that comes immediately before the one we want to delete while (prev.next != node) { prev = prev.next; } end while // Assign the node's next node to the previous node's next node prev.next = node.next; } end if // Before deleting the node, reset its next node node.next = null; // Now delete the node. delete node;
Can we use doubly linked list as a circular linked list?
Yes. The tail node's next node is the head node, while the head node's previous node is the tail node.
Is null node equal to leaf node?
No. A leaf node is a node that has no child nodes. A null node is a node pointer that points to the null address (address zero). Since a leaf node has no children, its child nodes are null nodes.
What is an intrathoracic node?
An intrathoracic node is a node within the chest cavity.
