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The evolving in Internet of Things and the plenty diversity of electronic components bring challenges and demand high level tools to improve the application development process. Concurrent computing is useful for catching the logic structure of a problem or solution and handling different and independent components, which is convenient in this context. Therefore, in this paper is presented a library...
Aiming at the rapid scheduling of collaborative detection traffic in Internet of things (IOT), a cooperative detection scheduling model about the bottom of IOT was designed in the paper; the model prioritized the traffic data of the sensing layer through the local scheduler of the collaboration layer, then an improved weighted round robin (IWRR) method was used to schedule the traffic data, the IWRR...
With the advances of control and vehicular communication technologies, a group of connected and autonomous (CA) vehicles can drive cooperatively to form a so-called cooperative driving pattern, which has been verified to significantly improve road safety, traffic efficiency and the environmental sustainability. A more general scenario that various types of cooperative driving, such as vehicle platooning...
Machine-to-Machine (M2M) communications are a key enabler of Internet of Things (IoT) applications. Smartphones are a natural choice to serve as gateways (GWs) in mobile M2M communications due to their enhanced connectivity, powered by the ubiquity of mobile networks, and sensing capabilities. However, the use of smartphones as M2M GWs can have an impact on the smartphone usability and introduce undesirable...
Networked control systems (NCS) have attracted considerable attention in recent years. While the stabilizability and optimal control of NCS for a given communication system has already been studied extensively, the design of the communication system for NCS has recently seen an increase in more thorough investigation. In this paper, we address an optimal scheduling problem for a set of NCS sharing...
Enhancing network lifetime in wireless sensor network is related with target coverage problem while continuously monitoring a set of targets. Target coverage problem is nothing but each target should be in the coverage range of at least one sensor node. A sensor cover is a set of sensors that covers all the targets. Target coverage is achieved by proper deployment of sensor nodes and network lifetime...
One of the major functions of a Wireless Sensor Network (WSN) is to provide the coverage to the network area. Many critical applications require different levels of coverage in the different parts of the network area which is generally called differential coverage. Providing differential coverage service in different period of time is a challenging due to the limited capabilities of the network nodes...
Wireless sensing element Network may be a network distributed in universe. This one consists of big quantity of nodes that are helpful in assembly of information within the various setting. However the nodes operate on battery of adequate power. As the nodes died, the network time period is reduced. Thus raising the network time period is final issue of sensing element network. This paper proposes...
A large number of wireless sensor nodes (SNs) are usually deployed in a remote area, where these nodes accurately monitor the environment and communicate the data collected by the SNs, to a central processing station wirelessly. Since the SNs are powered by batteries, therefore, to prolong the network operating life, they must utilize energy efficiently. In this paper, we propose a method to control...
In this paper, we present a delay-optimal packet scheduler for processing the M2M uplink traffic at the M2M application server (AS). Due to the delay-heterogeneity in uplink traffic, we classify it broadly into delay-tolerant and delay-sensitive traffic. We then map the diverse delay requirements of each class to sigmoidal functions of packet delay and formulate a utility-maximization problem that...
Sensor-cloud has recently emerged as a promising technology that provides sensor management approaches and facilitates sensor data sharing by virtualizing the physical sensors on a cloud platform. This framework is a new trend to deploy and execute various smart applications with rapidly changing in the amount of traffic loads. Therefore, it is essential to provide a platform to meet demand variation,...
Cognitive wireless sensor networks exploit the spectrum heterogeneity to access the different spectrum bands for data transmission. The various spectrum access schemes proposed in the previous work assume that each node can access and transmit their data using a single spectrum band at any given time, with the access to the different spectrum bands being dynamic and relative to the wireless medium...
Cognitive wireless sensor networks exploit the spectrum heterogeneity and dynamically accesses the different spectrum bands based on the wireless medium conditions and permissions. The various spectrum access schemes proposed in the previous work have limited such access to a single spectrum band at any given time. This limitation may be insufficient for networks with a large number of nodes that...
This paper is concerned with the simultaneous stabilization of a collection of battery-powered networked control systems (NCSs). A new model is presented to capture the bandwidth and transmission energy constraints effects on the NCSs. By using average dwell time techniques, sufficient conditions for the exponential mean square stability of a single plant are derived at first. Then based on the scheduling...
Some Machine-to-Machine (M2M) communication links particularly those in a industrial automation plant have stringent latency requirements. In this paper, we study the delay-performance for the M2M uplink from the sensors to a Programmable Logic Controller (PLC) in a industrial automation scenario. The uplink traffic can be broadly classified as either Periodic Update (PU) and Event Driven (ED). The...
World population is ageing and increasingly scarce resources are required to cover the needs of everyone adequately. Medical conditions, especially memory problems, restrict the daily life of a broad slice of the elderly population, affect their independence. To prevent this, providing the right care and assistance while having in mind the costs implicated is essential. One possible path is to work...
NAND flash memory has been widely used in storage systems by offering greater read/write performance and lower power consumption than mechanical hard drives. Recently, the tradeoff between endurance, write speed, and read speed has been exploited from many ways for I/O performance improvement, which also induce the read/write latency variation. In this paper, the latency variation is exploited in...
In a Wireless Sensor Network, the medium access control (MAC) layer protocol design is very important due to the constraint of the limited processing capability and the power on wireless sensors. Recently, the IEEE released a revised version of the IEEE 802.15.4, referred to as IEEE 802.15.4e, which defined the Slotted Channel Hopping (TSCH) mechanism. The TSCH then adopted the slotframe structure...
Phase transition is an important area of research in studying empirical hardness of NP-complete problems. We explore the possibility of phase transition phenomena in k/Q-coverage problem of wireless sensor networks wherein there exists some parameter for which the problem exhibits a sharp transition as the value of the parameters increase. We identify sensing range as one such parameter that triggers...
In this paper, the problem of Fault diagnosis is addressed in a particular settings: Autonomous control systems (ACS) sharing a single communication channel (WIFI for example) are considered. The problem is to optimize the sampling rate for the exchange of information between the ACS and the FDI systems in order to have efficient fault diagnosis. In this setting, reducing the number of times that...
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