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Recently, several studies have considered the use of mobile sink (MS) for data gathering in wireless sensor networks. As, it can enhance lifetime of the sensor network by distributing load among the sensors. In some delay-critical applications, a mobile sink is allowed to move along a predefined path. However, due to the predefined path and relatively slower speed of mobile sink, data gathering from...
In recent studies, researchers have developed various computation offloading frameworks for bringing cloud services closer to the user via edge networks. Specifically, an edge device needs to offload computationally intensive tasks because of energy and processing constraints. These constraints present the challenge of identifying which edge nodes should receive tasks to reduce overall resource consumption...
In recent years Wireless sensor networks (WSNs) play a vital role in various real time application, by collecting a huge amount of various sensory data from the field. The routing protocol for wireless sensor networks mainly aims in the energy-efficiency of the network. Due to restricted energy, memory, transmission range, power and high traffic load, the nodes which act as a sink get depleted quickly...
In this paper, we focus on the definition of estimators to predict method calls in Android apps. Estimation models are based on information from requirements specification documents (e.g., number of actors, number of use cases, and number of classes in the conceptual model). We have used a dataset containing information on 23 Android apps. After performing data-cleaning, we applied linear regression...
As the rapid growth of the data traffic, the mobile cellular network is under unprecedented operation pressure. Various of small cells with relay technologies have been proposed to bypass increased data with the status of the limited base station so far. Therefore, vehicular small cell gradually are attracting the attention of the researchers. In this paper, we discuss the communication model of the...
In the process of data collection of large-scale delay tolerant mobile wireless sensor networks (MWSN), in order to reduce the energy consumption of sensor network data transmission, time consuming and low efficiency problems, a data fusion algorithm for mobile wireless sensor networks based on improved RBF neural network is proposed. The data fusion model is introduced into the RBF neural network...
Efficient energy planning is a key feature for the future smart cities. The real-time optimization of the energy distribution and storage is the real added value for smart grid and cities. However, the available energy providers' infrastructures are not able to estimate and predict real-time fluctuation of the energy demand and are not scalable enough to integrate, with low cost and effort, hardware...
Signaling storms in mobile networks, which congest the control plane, are becoming more frequent and severe because misbehaving applications can nowadays spread more rapidly due to the popularity of application marketplaces for smartphones. While previous work on signaling storms consider the processing overhead in the network and energy consumption of the misbehaving User Equipment (UE) only, this...
Mobile P2P network is topology dynamic, mobile nodes resource limited, network resources shortage, so how to choose appropriate data dissemination strategies effectively and increase mobile nodes' cooperation is a challenging task to reduce network delay, save bandwidth and prevent congestion. But some mobile nodes have to provide resources for a large part of the network and thus deplete their batteries...
Frequent partitions, intermittent connectivity and message delivery delay are the commonly observed characteristics of disruption tolerant networks (DTNs). These networks often operate over extended periods since they are regularly deployed in harsh and constrained environments. Efficient energy conservation is therefore necessary to prolong network lifetime. Most DTNs nodes depend on mobility to...
Although mobility management within a network of wireless sensors is a relatively new subject, we envision that a mobile sensor will move through different networks. However, it is very likely that the routing protocol supported in a visited network is different from the one supported by the mobile sensor. In a convergecast communication model, it would suffice for mobile sensors to broadcast its...
In recent years, improving network model and enhancing the network performance have received people's attention gradually. The peer-to-peer network model has been used in Ad Hoc networks to increase the data output rate, to reduce the transmission power, to increase network capacity and the better load balance. However, the network analysis topology computation, the routing and the energy supply have...
Mobile sink has been widely used in wireless sensor networks to balance energy consumption among sensor nodes and to prolong the network lifetime. But, as mobile sink moves, sensor nodes have to change their routes to mobile sink frequently, which results in a lot of energy consumption and also a very large transmission delay accordingly. Although using a static sink may lead to shorter network lifetime,...
A mobile sink is widely considered to facilitate the data collection from energy constrained sensor fields, by having the sink come close to the sensors and conserving precious sensor node energy. The effectiveness of such a data collection approach can be measured in terms of the sensor energy conserved and the time required to collect the sensor data from the field (or, equivalently, the length...
Traditionally, geocasting has been known as the appropriate scheme for providing effective data dissemination from a source to all nodes in a geographically restricted region. However, since the geocasting typically assumes the restricted region is stationary, it is hard to directly adopt the traditional geocasting in order to offer effective data delivery to mobile sink groups that have geographically...
A characteristic feature of ad hoc networks is the infrastructure less and seamless connectivity of the wireless mobile nodes. Mobility plays an important role in the connectivity of these nodes. In this paper a performance comparison of five important mobility models; community model, Group Force Mobility Model (GFMM), Reference Point Group Mobility (RPGM), Manhattan Mobility Model and Random Waypoint-Steady...
Energy consumption is fast emerging as a central item of research for the future Internet (FI). In an environment where the majority of users access next generation networks using battery-powered devices, energy efficiency is of equal importance to other well-established metrics of overall system and protocol performance. Nevertheless, we still lack benchmarks of what constitutes energy efficient...
We propose a communication mechanism to support mobility of loosely coupled mobile users in sensor applications with multiple sources. First, we examine problems for mobility support of the loosely coupled users in wireless sensor networks with multiple source nodes, and then study the dynamic sink communication model to support a mobile user with sink-oriented tree based data gathering from multiple...
In this paper, we investigate the transmission-power assignment problem for k-connected mobile ad hoc networks (MANETs), the problem of optimizing the lifetime of a MANET at a given degree k of connectivity by minimizing power consumption. Our proposed solution is fully distributed and uses a model-based transmission power adaptation strategy based on model-predictive control. Specifically, a stochastic...
This paper studies the design of optimal location of buffer area in a movement-assisted data gathering scheme. In [7], the author only considered a network scenario where rLtR and the transmission power of sensor was fixed. This paper extends the network to a general network where the relationship between r and R is arbitrary and the transmission power of sensor is variable. In the network, the maximum...
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