We illustrate the effectiveness of using mobile sinks to obtain potential energy savings for the sensors during data dissemination in wireless sensor networks. The entire wireless sensor network is divided into two layers: the resource-constrained sensor nodes forming the bottom layer and a mobile ad hoc network of resource-rich sink nodes forming the top layer. Each sink node is assigned a par...

In this paper, we propose the mobility of a sink in improved energy efficient PEGASIS-based protocol (IEEPB) to advance the network lifetime of Wireless Sensor Networks (WSNs). The multi-head chain, multi-chain concept and the sink mobility affects largely in enhancing the network lifetime of wireless sensors. Thus, we recommend Mobile sink improved energy-efficient PEGASIS-based routing protoc...

Improving network lifetime is a fundamental challenge of wireless sensor networks. One possible solution consists in making use of mobile sinks. Whereas theoretical analysis shows that this approach does indeed benefit network lifetime, practical routing protocols that support sink mobility are still missing. In this paper, in line with our previous efforts, we investigate the approach that mak...

Due to resource constraint nature of sensor nodes, the network suffers by computation and security problems. These nodes create a wireless sensor network that used sink stable or mobile as per required applications. Therefore, various traditional security techniques of the traditional networks are not possible to be applied on this network. To overcome the security problem in this ad-hoc or wir...

Sensor nodes located in the vicinity of a static sink drain rapidly their batteries since they have to carry more traffic burden. This situation results in network partition, holes as well as data losses. To mitigate this issue, many research proposed the use of mobile sink in data collection as a potential solution. However, due to its speed, the mobile sink has very short communication time t...

Sensor nodes transmit the sensed information to the sink through wireless sensor networks (WSNs). They have limited power, computational capacities and memory. Portable wireless devices are increasing in popularity. Mechanisms that allow information to be efficiently obtained through mobile WSNs are of significant interest. However, a mobile sink introduces many challenges to data dissemination...

Wireless sensor networks commonly consist of a large number of tiny sensor nodes that are deployed either inside the target area or very close to it to cooperatively monitor the target area. Energy efficiency and network lifetime are two challenges that most of researchers deal with. In this paper, to improve the performance of sensor networks, we propose an energyefficient competitive clusteri...

The design of movement trajectories for mobile sink plays an important role in data gathering for Wireless Sensor Networks (WSNs), as it affects the network coverage, and packet delivery ratio, as well as the network lifetime. In some scenarios, the whole network can be divided into subareas where the nodes are randomly deployed. The node densities of these subareas are quite different, which m...

We propose a learning-based approach to efficiently forward data to a mobile sink in a wireless sensor network. Specifically we assume a push application where the mobile sink does not initiate the query. Furthermore, the sink moves in a randomized pattern within the sensor field. In the presented scheme, Moles (nodes that sense the sink) learn the sink’s movement pattern over time and statisti...