Data Collection Method and their Approaches in Wireless Sensor Network

Data collection is one of the critical issue in the wireless sensor network. WSNs consist of a large number of sensors distributed across a geographical area to monitor and collect data from the environment. In this paper we have highlighted some of the component and there function that how the data is gathered. Some of the techniques are shown with the key metrics with formulas using different evaluation parameters. Even included the analytical model for the energy efficiency. Have discussed the issues and previous solutions related to both data gathering protocol design and data dissemination protocol design in wireless sensor networks (WSNs).Data collection is based on regular and non regular mode from which the data is sensed by defining the characteristics. In this survey paper we have mentioned the protocols of the data gathering with approach and key features which may have impact on the performance.