Mobile sink based data gathering for improving network lifetime in Wireless Sensor Networks (WSNs) has been extensively studied in literature. Mobile sinks are useful in mitigating energy-hole problem that can occur due uneven energy consumption among sensor nodes. However, the approach introduces new challenges during data delivery due to continuous change in the sink location. For efficient d...

Mobile enable Wireless Sensor Network (mWSN) has been proposed to realize large-scale information gathering via networking wireless sensors and mobile sinks. Some fundamental design parameters in mWSN have been investigated in this article, such as cluster size, sink velocity, transmission range, and packet length. Our contributions include: 1) We propose to use multihop forwarding to form a cl...

The data collection problem is one of the most important issues in Wireless Sensor Networks (WSNs). Constructing a tree from all sensor nodes to the sink node is the simplest way, but this raises the problem of energy unbalance since the sensors closer to the sink node would have much higher workloads from relaying data. To cope with the energy unbalance problem, a number of mobile-sink mechani...

In this paper, we focus on monitoring environments with wireless sensor networks in which mobile sink nodes traverse sensing fields in a specific spatialtemporal manner and aggregate various types of environmental data with different deadline constraints distributed over sensor nodes. For such environments, we propose an energy-efficient data aggregation method that reduces intermediate transmi...

Due to non inheritable restriction of sensors, there is always a vital issue on the way to utilize restricted energy effectively. In the proposed work we have focused on the Energy Consumption in WSN Using Mobile Sink and Hierarchal Clustering. There is concept of bringing mobile sinks to sensing field to save energy of cluster heads while sending data to mobile sinks instead of fixed sink on b...

Over the last decade a large number of routing protocols has been designed for achieving energy efficiency in data collecting wireless sensor networks. The drawbacks of using a static sink are well known. It has been argued in the literature that a mobile sink may improve the energy dissipation compared to a static one. Some authors focus on minimizing Emax, the maximum energy dissipation of an...

Using a mobile sink is a type of promising application in wireless sensor networks (WSNs). To minimize the number of static nodes that are awake while the mobile sink is gathering data, it is beneficial to use cluster heads (CHs) for network management and operation, thereby saving energy in communication. During the network design, deciding an appropriate number of CHs is an important thing to...

Many methods have been researched to prolong sensor network lifetime using mobile technologies. In the mobile sink research, there are the track based methods and the anchor points based methods as representative operation methods for mobile sinks. However, the existing methods decrease Quality of Service (QoS) and lead the routing hotspot in the vicinity of the mobile sink. In large scale wire...

Environment monitoring is performed using the sensor devices. Wireless Sensor Network (WSN) is constructed with a set of data collection units. Base station, sinks and sensor devices are used in the WSN. Power resources, bandwidth and storages are the limitations of the sensor devices. Sink nodes are used to collect data from a group of sensor devices. Many to one traffic pattern based data col...

Wireless sensor networks with mobile sink are expected to increase the flexibility for gathering information in the large-scale sensing and detecting environments. The sink can randomly move within the sensing area to collect the sensing data. Energy saving becomes one of the most important features for the sensor nodes to extend their lifetime in such networks. To provide reasonable energy con...