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This paper proposes a novel framework for data collection from a sensor network using flying sensor nodes. Efficient data communication within the network is a necessity as sensor nodes are usually energy constrained. The proposed framework utilizes the various entities forming the network for a different utility compared to their usual role in sensor networks. Use of flying sensor nodes is usually...
Applications of Wireless Sensor Networks (WSNs) have increased significantly in the last few decades and real time needs have to be satisfied using appropriate time synchronization algorithms. Novel synchronization algorithms can lead to improved network performance including energy consumption, throughput, and delay. This paper proposes, implements and evaluates a hybrid synchronization algorithm,...
In this paper we put forward an approach, first of its kind, to collectively address conservation of elephants by preventing their death being overrun by trains and monitoring the integrity of the rail track. It utilizes a unique method for deterring the elephants using infrasonic sound from crossing the rail track. For obtaining this output the sensing devices are placed in proximity areas of the...
Machine-to-Machine (M2M) communication has attracted considerable attention in research communities and has also started to gain momentum from a commercial perspective where operators are starting to offer services within the domains of fleet management, logistics, home automation, etc. At the same time, the more loosely defined, but broader domain of Internet of Things (IoT) is picking up as what...
The last few years have seen the promising growth in the application of wireless sensor networks (WSNs). The contribution of this paper is on a cluster-based time division multiple access (TDMA) scheduling algorithm to improve the performance of WSN applications in terms of energy efficiency, delay, throughput and scalability. Cluster-based scheduling improves the scalability by stabilizing the topology...
Applications for wireless sensor networks (WSNs) are increasing in numbers and are penetrating in areas of increasing importance. The requirements of these applications can only be fulfilled with efficient medium access control (MAC) layer protocols and this paper presents a cluster-based time division multiple access (TDMA) scheduling algorithm, Multicolor-Green Conflict Free (M-GCF), for WSNs. The...
The virtualization of physical infrastructure by designing and embedding overlay networks is becoming still more relevant in order to overcome the challenges in operators' networks and in the internet as a whole by better utilizing the available resources. In this paper we investigate how a framework for network properties can be used for the enhanced design of overlay networks. The framework includes...
Network operators are considering femtocell solutions as a mean of reducing costs, offloading their networks and increasing profits but this at the same time gives rise to new technological challenges. The most stringent ones are the resources that the femtocells should be using and the interference between the macro and the femto layers. We propose an unsupervised learning algorithm, namely reinforcement...
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