- Omnet++ projects are used for simulation of wireless networks. These omnet++ projects are mostly used in simulating wireless and mobile networking projects.
What is Sink node?
- Sink node is often act as the base station which collect data from the sensor nodes. One of the main disadvantage of the wireless sensor network is that it consume energy a lot. In order to avoid that the sink node is used . The sink node collects all the information from the sensor node and sends to their respective location.
Why we are using sink node in omnet++ projects?
- In wireless sensor network the sensor nodes senses the data and the sensory information reaches the particular location by using "hopping or jumping" method. The method used here wastes energy and increases the network traffic unnecessarily. In order to avoid that we go for this sink node concept.
Once the data are collected from the sensor nodes are transferred to the next nearby sensor node and the process forms a tree like structure to reach the sink node. In this algorithm the node has to select the effective tree structure to reach the sink node with less energy.
At the same time the sink node also moves from one place to another so that energy consumed by the set of sensor nodes saved .
In the network sink node receives data from wireless sensor 3 in the first network and in the second network the sink node got replaced and the data received from sensor node 2 .The nodes chooses the path in such a way that by which tree structure the data received is less.