A Systematic Review of Data Aggregation Techniques in Wireless Sensor Networks

Abstract

A Wireless Sensor Network (WSN) consists of a number of sensor nodes which can sense, communicate, and store data, and it has a battery capacity. Data aggregation can be defined as a procedure applied for the elimination of redundant transmissions, and it provides fused information to the base stations, that in turn improve the energy effectiveness and increases the life span of energy constrained WSNs. The current article presents a systematic review of data aggregating schemes in flat and hierarchical WSNs, which are compared in light of different factors, including the node heterogeneity, mobility of aggregator nodes, and types of networks and algorithms. By comparing these remarkable techniques, a set of aspects are suggested to be dealt with in future works. Index words: Data aggregation, WSNs, network lifetime, Flat Network, Hierarchical network.