An effective combined method for data aggregation in WSNs

A wireless sensor network consists of many wireless sensors in a specific area to collect information from the environment and send the collected data to the base station. In this type of network, a sink node is applied to improve data aggregation with a mobile sink. Many methods have proposed for the use of mobile sinks and a detailed evaluation of the performance of these methods has not been provided. In this paper, the current authors present an effective and new method by combining three data collection methods and mobile sinks. Results reveal that the proposed method has a better performance in terms of parameters than other methods. A main difference is that in addition to the mobile sink, it uses other nodes called advanced nodes that direct data from the header nodes to the sink path, which ultimately results in better performance. The results show that the proposed method has more significant superiority over its comparative techniques, particularly on energy consumption, network lifetime, delay, and missing data.