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IoT / Cloud / Big data / Mobile (ICBM) is a new technology paradigm that merges IoT, cloud, big data, and mobile technologies. In this study, we designed and implemented a smart farm environment management system that can collect and monitor information on crop growth utilizing ICBM technology. The wireless system proposed in this paper not only collects environmental data from the inside of a vast...
In our current society, Unmanned Aerial Vehicles (UAVs), also known as drones have become common. These vehicles are controlled remotely from a Ground Control Station (GCS) or autonomously by a programmed mission. Data-link between drone and GCS can be established by using a communication protocol. The Micro Air Vehicle link (MAVLink) protocol is an open source, point-to-point networking protocol...
Wireless Sensor Networks present several advantages when compared to wired ones, among them, the low consumption and simplicity of installation. In some cases, energy consumption may be so low as to allow the use of energy harvesting techniques, as in the case of EnOcean protocol. In other networks, it is necessary to meet specific requirements, such as in industrial ones, where communication must...
This paper aims at presenting an experimented low power Internet of Things architecture, that could be integrated to underwater monitoring systems like Autonomous Underwater Vehicles for wireless underwater sensing. The proposed hardware architecture of the sensor nodes is based on an ultra-low-power Flash Micro-controller that takes measurements from water sensors, and synchronizes the network by...
We developed a field management system with a field server that helps decrease farmers workload. It will be also enable the transfer of knowledge to the next generation of farmers in Japan. In order to reduce the burden of agricultural work, less frequent maintenance of the field server is desired. In this paper, we explain construction method of a local wireless network to cut the power consumption...
The Internet of Things (IoT) is becoming important in many areas that include health, entertainment, manufacturing, automotive, home and building automation, industrial, etc. Will it be important for education and more specifically for teaching and learning? If so, what engineering subjects would benefit the most and how effective could the IoT be for teaching and learning? Can IoT technologies and...
MODBUS is still one of the most widespread application layer protocols used in industrial communication due to its simple request-response communication session and its readiness to be implemented on top of several lower level communication protocols and various physical media such as RS232/RS485 serial lines and Ethernet TCP/IP. Given the well-known inclination of Modbus to inter-networking, a solution...
Since radio links in wireless body area networks (WBANs) commonly experience highly time-varying attenuation due to topology instability, communication protocols with fixed transmission power cannot produce a very good performance in terms of energy consumption, interference range, and communication reliability. We explain that how channel behaviourcan be modelled using Markov Chain. Then, a power-adaptive...
In the recent year's low power computing systems have gained popularity. Networks, which use low power computer systems and transmitted data by using wireless connection are called wireless sensor networks. Nowadays, the most topical researches pertaining to wireless sensor networks are grounded on the new optimization of structure of network transmission protocol, the routing optimization in transmission...
This paper proposes a radio resource management scheme for the multi-RAT (Multiple Radio Access Technology) unit based MHN-E (Mobile Hotspot Network Enhancement) network that provides a millimeter-wave (mmWave) backhaul link of high-speed railway communications. We designed when multi-RAT unit configuration procedure is triggered and how it works, also explained detailed multi-RAT unit bearer configuration...
This paper investigates the ergodic capacity of a multi-input multi-output (MIMO) wireless powered communication system with partial channel state information at the power beacon (PB). Employing time splitting protocol, the PB first transmit energy-bearing signals to the energy constrained source S through beamforming, and then S uses this energy to transmit information to the destination. Unlike...
Physical layer security is becoming a promising technology to face the security challenges of diversified and rapidly-growing wireless applications. In this paper, we propose a three-hop secure Orthogonal Frequency Division Multiplexing (OFDM) transmission protocol for the wireless networks with untrusted relays. In the proposed protocol, instead of exploiting the degree of freedom over spatial domain...
Internet of Things (IoT) has revolutionized the traditional Internet where only human-centric services were offered. It has enabled objects to have the ability to connect and communicate through the Internet. IoT has several applications such as smart water management systems. However, they require high energy-efficient sensor nodes that are able to communicate across long distance. This motivates...
Pervasive networks formed spontaneously by wireless mobile devices capable of ad hoc communication make it possible to get services from these devices, and to compose them dynamically so as to provide people with new and more sophisticated application services. Discovering, invoking and composing services in such networks are challenging tasks, due to the numerous and unpredictable connectivity disruptions...
Although IEEE 802.11p technology is standardized for road safety and efficiency applications, the channel congestion problem is its key weakness necessitating distributed congestion control (DCC) algorithms on different layers of the communication stack. In this paper, we propose DCC-enabled Contention based Forwarding scheme targeting multi-hop dissemination of Decentralised Event Notification Messages...
This paper considers a fast fading wireless powered wiretap channel, where an energy constrained information source, powered by a dedicated power beacon, sends a secret message to a legitimate user using the artificial noise (AN) scheme in the presence of a passive eavesdropper. Based on a two-phase time division protocol, the ergodic secrecy throughput is derived. Furthermore, the optimal time-switching...
Simultaneous wireless information and power transfer (SWIPT) is an effective way for energy-constrained unmanned aerial vehicle (UAV) to prolong the network lifetime. In this paper, an amplify and forward (AF) relaying network is considered, where an energy-constrained UAV harvests energy and information simultaneously from base station and then transmits the information to the destination node. Based...
This paper describes a new implementation of the Elastic Multicast (EM) protocol including new design enhancements for improved dynamic operation. The paper also presents additional performance data collected from emulation-based mobile network experiments. EM is a low complexity extension to Simplified Multicast Forwarding (SMF) that adds group-specific dynamic pruning of the SMF-based multicast...
In this paper, we implement the Wi-Fi hardware architecture. The core chip designed by the MediaTek Corporation is used to develop its peripheral circuits. The chip supports USB Type and can control the lighting circuit through the APP on the mobile phone, so as to simulate the switch of household electrical appliances. In the future, consumers can purchase home appliances with built-in communication...
A communication protocol for fog computing should be efficient, lightweight and customizable. In this work we focus in a communication protocol for fog nodes composed of wireless sensors, which are spatially distributed autonomous sensors monitoring physical or environmental conditions. Problems with data congestion and limited physical resources are common in these networks. For the optimization...
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