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Large scale monitoring systems require reliable and efficient routing protocols used to overcome the limitations introduced by battery operated embedded devices, among which, energy consumption is considered the main concern. This topic has gained a lot of interest in the last decade. Due to numerous advantages, clustering is becoming more prevalent as a routing technology in WSN. This paper describes...
Energy efficiency is likely to be the litmus test for the sustainability of upcoming 5G networks. Before the new generation of cellular networks are ready to roll out, their architecture designers are motivated to leverage the SDN technology for the sake of its offered flexibility, scalability, and programmability to achieve the 5G KPI of 10 times lower energy consumption. In this paper, we present...
Reducing the power consumption of the internet backbone networks is one of the major challenges in computer networks because of high energy cost and environmental issues. SDN is the promising technology that enables fine grain control of network traffic. In this paper, we propose a novel traffic management and routing framework, called SDGTE (Software Defined Green Traffic Engineering), that minimizes...
In critical applications like military field, industrial safety methods, fire accidents and for particularly secured communications, many sensor nodes are used. These sensor nodes always maintain their battery power for a long time period so we can use a sleep scheduling method. Two known traffic paths are used for monitoring process. If an event occurs in a region, an alarm is carried through the...
In an ad hoc network, communication distance is limited by the need to minimize the power consumption of the communication nodes. To deal with this, we usually employ multi-hop relaying functions that use the number of hops as a routing metric. But in an environment where traffic density is high, the same relaying node may be used by multiple sending nodes due to their spatial distribution. Data packets...
Different aspects of Wireless sensor networks (WSN) are currently being studied. Some of the important aspects would be clustering, routing and security. This paper looks at the problems arising due to wireless routing between nodes of a medical WSN. Here, the focus is on selective forwarding (SF) attacks. As a solution, we have described a secure routing protocol with test-bed simulation results...
In this paper, we present a Multi-radius Ring-based Multi-hop Clustering Routing Algorithm (MRMCRA) in wireless sensor networks for agricultural monitoring system. Several concentric rings of different radius are created so that the whole area is divided into different subareas. The radius of each ring is carefully selected to balance the power consumption. Each cluster head (CH) is required to select...
With the rapid development of national economy, for dependency on the water conservancy monitoring system design put forward higher request, will wireless sensor network into water conservancy monitoring system. Introduction to the wireless sensor network hardware design, including digital water-level sensor SHT11 and CC1110 microcontroller, Communication protocol modular CC2420 to realize, Software...
We introduce a sensor network to measure the individual power consumption of a large number of network elements in near-real time. A main application of this system is to obtain profiles of the power usage of network elements, i.e., a parameterization of power consumption with respect to workload. We discuss the design and implementation of both hardware and software aspects of the system as well...
In the last years the number of papers related to wireless sensor networks has increased substantially. Most of them focus in raising issues as routing algorithms, network lifetime, and more recently, Multiple Input Multiple Output wireless networks. In contrast with all those studies, we present a practical application of wireless networks: The sensing of the pH and temperature for a fish farm. The...
Sensor networks have evolved to a powerful infrastructure component for event monitoring in many application scenarios. In addition to simple filter and aggregation operations, an important task in processing sensor data is data mining - the identification of relevant information and patterns. Limited capabilities of sensor nodes in terms of storage and processing capacity, battery lifetime, and communication...
In many-to-one wireless sensor networks, there exists an unbalanced power consumption problem; that is, nodes near the data sink or base station, called hot spots, have a high probability of forwarding a high amount of packets and die early. Most of previous work is dedicated to constructing a long-lived aggregation tree, while leaving the hot spot problem unsolved. When the locations of sinks are...
Ultra-low power communication and computing are of critical importance to the development of an infrastructure monitoring system, which is expected to have a very long life cycle under the constraints of extremely limited battery capacity or small energy scavenging devices. This paper discusses the enabling technologies for ultra-low power infrastructure monitoring, and includes a survey on existing...
Cryptographic devices are recently implemented with different countermeasures against side channel attacks and fault analysis. Moreover, some usual testing techniques, such as scan chains, are not allowed or restricted for security requirements. In this paper, we analyze the impact that error detecting schemes have on the testability of an implementation of the advanced encryption standard, in particular...
Expected growth in use and implementation of wireless sensor networks (WSNs) in different environments and for different applications creates new security challenges. In WSNs, a malicious node may initiate incorrect path information, change the contents of data packets, and even hijack one or more genuine network nodes. As the network reliability completely depends on individual nodespsila presence...
This paper presents a distributed fermat-point range estimation strategy, which is important in the moving sensor localization applications. The fermat-point is defined as a point which minimizes the sum of distances from three sensors inside a triangle. This point is indeed at the trianglepsilas center of gravity. We solve the problems of large errors and poor performance in the bounding box algorithm...
Sink mobility has become an increasingly important requirement of various sensor network applications. Handling such mobile sink conditions brings new challenges to large-scale sensor networking. This investigation proposed a hybrid-structure routing protocol (HSRP) that combines the benefits of grid-based and cluster-based structures. Grid-based structure is designed to solve the cluster head selection...
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