The sink is a base station, is used to collect and process data in the centralized mode.
Communication is taken place between a source or sources and the destination. The sink is nothing but the destination.
The sink is a base station, is used to collect and process data in the centralized mode.
So a WSN needs both sink as well as BS for communication? Massinissa Saoudi
All the communication in WSN is taken place between source and destination. The destination is called as base station or sink. If you want to analyze some network parameters you will do it by taking source and destination into consideration. So destination, sink, base station are just synonyms.
Sink node acts as a gateway or interface between the sensor field and to the user.
In wireless sensor networks (WSNs), all the data collected by the sensor nodes are forwarded to a sink node. Therefore, the placement of the sink node has a great impact on the energy consumption and lifetime of WSNs.
Source: https://dl.acm.org/citation.cfm?id=2424714
The sink is the common destination of all data collected by nodes in the network in case of convergecast data profile. The sink can be a gateway between the WSN and other king of networks.
Sink nodes are used to collect and pre-process data which gathered from regular sensor nodes.
In Wireless Sensor Networks (WSN) the energy consumption and life times of sensors are an important issue. The data collected by respective cluster’s nodes will be transmitted to the elected cluster heads. The cluster heads then will send all collected data to the Sink Node or Base Station. The data received by base station will be sent to data processing center. That is the reason Sink Node is called the gateway between the sensor nodes and data processing center.
sink node can have mobility or can be static, many research shows that the mobility of the sink node affect the performance of WSN in a good way so that can improve the lifetime of the network and overcome the constraint of energy consumption.
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