Data Collection Method to Improve Energy Efficiency in Wireless Sensor Network

Wireless Sensor Networks (WSNs) are generally self-organized wireless ad hoc networks which incorporate a huge number of sensor nodes which are resource constraint. Among the tasks of WSN, one mostessentialtask is to collectthe data and transmits the gathered data to a distant base station (BS). The effectiveness of WSNs can be calculated in terms of network lifetime.Data collection is a frequentoperation but analytical and critical operation in many WSN’s application. To prolong network lifetime innovative technique that can improve energy efficiency are highly required. This paper presents a survey for designing Energy Efficient Data Collection Methods used for prolonging network lifetime in Wireless Sensor Network (WSN). The study highlights the importance of different Data conditions for various purposes like emergency response, medical monitoring, military applications, surveillance in volcanic or remote regions, etc.Different Data Collection methods like data aggregation clusters, data aggregation trees, network coding, correlation dominating set, etc. are considered in detail in this study. Furthermore a comparison of different Data Collection Method based on the network lifetime, energy efficiency, complexity of the algorithm, transmission cost and fusion cost is done.