Industry 4.0 is a new industry trend which relies on data driven business model to set the productivity requirements of cyber physical system. To meet this requirement, systems need be highly scalable, adaptive, real-time, and reliable. Recent successful industrial wireless standards such as WirelessHART appeared feasible approach for systems. For reliable real-time communication in unreliable environments, they adopt high degree redundancy. While redundancy crucial control, it causes huge...

Prolonging the network lifetime is a major consideration in many Internet of Things applications. In this paper, we study maximizing an energy-harvesting LoRa network. Such characterized by heterogeneous recharging capabilities across nodes that not taken into account existing work. We propose link-layer protocol to achieve long-lived which dynamically enables with depleting batteries exploit superfluous energy neighboring affluent letting node offload its packets node. By exploiting LoRa's...

Today, industrial Internet of Things (IIoT) are emerging in large-scale and wide-area applications (e.g., oil-field management). Traditional wireless solutions for automation depend on short-range technologies (WirelessHART, ISA100.11a), posing a big challenge to support the scale today's IIoT. To address this limitation, we propose adopt LoRa, prominent low-power network technology, automation. Adopting LoRa poses some unique challenges. The fundamental building blocks any system feedback...

Low-Power Wide-Area Network (LPWAN) is an enabling Internet-of-Things (IoT) technology that supports long-range, low-power, and low-cost connectivity to numerous devices. To avoid the crowd in limited ISM band (where most LPWANs operate) cost of licensed band, recently proposed SNOW (Sensor over White Spaces) a promising LPWAN platform operates TV white spaces. Nevertheless, current implementation uses USRP devices as nodes which have high ≈ $750 USD per device) large form-factor, hindering...

With increasing number of cloud additive manufacturing (AM) service providers, AM services are becoming decentralized and it is difficult for consumers to discover according their personal preferences tradeoffs. Existing frameworks either do not have brokers between providers or support personalized preference tradeoff based brokerage. In this paper, we present a cloud-based broker system provide with single point access large from many over the Internet on oriented architecture using web...

Recent advancements in industrial Internet-of-Things (IoT), more specifically, the development of wireless standards such as WirelessHART and ISA100, are paving way for fourth revolution, Industry 4.0. These specify highly reliable real-time communications key requirements sensor-actuator networks. Schedulability analysis remains cornerstone analyzing performance these While it is well-explored domain CPU scheduling, schedulability multi-hop networks has seen little progress till date....

Communication reliability in a Wireless Sensor and Actuator Network (WSAN) has high impact on stability of industrial process monitoring control. To make reliable real-time communication highly unreliable environments, WSANs such as those based WirelessHART adopt graph routing. In routing, each packet is scheduled multiple time slots using channels, links along paths routing between source destination. While redundancy crucial to communication, determining maintaining challenging terms...

Wireless Sensor Networks (WSNs) are popular for their usage in various application like environmental monitoring because of small size and ease deployment. However, there is a considerable cost owning maintaining involved which might impede to medium scale industries from availing services. Even large-scale industries, WSNs deployed maintained with so much financial investment, when remains under utilized affects profitability. This challenge needs be addressed such manner that could use...

The rapid growth of various Low-Power Wide-Area Network (LPWAN) technologies in the limited spectrum brings forth challenge their coexistence. Today, LPWANs are not equipped to handle this impending challenge. It is difficult employ sophisticated media access control protocol for low-power nodes. Coexistence handling WiFi or traditional short-range wireless network will work LPWANs. Due long range, nodes can be subject an unprecedented number hidden nodes, requiring highly energy-efficient...

Low-Power Wide-Area Network (LPWAN) is an enabling Internet-of-Things technology that supports long-range, low-power, and low-cost connectivity to numerous devices. To avoid the crowd in limited ISM band (where most LPWANs operate) cost of licensed band, recently proposed Sensor over White Spaces (SNOW) a promising LPWAN platform operates TV white spaces. As it very recent still its infancy, current SNOW implementation uses Universal Software Radio Peripheral devices as nodes, which has high...

The concept of Industry 4.0 introduces the unification industrial Internet-of-Things (IoT), cyber physical systems, and data-driven business modeling to improve production efficiency factories. To ensure high efficiency, requires IoT be adaptable, scalable, real-time, reliable. Recent successful wireless standards such as WirelessHART appeared a feasible approach for IoT. For reliable real-time communication in highly unreliable environments, they adopt degree redundancy. While redundancy is...

For hard-real time systems, cache memory increases execution variability, increasing the complexity of timing analysis. As such, is often treated exclusively as a detractor to schedulability. Cache-aware co-located scheduling aims improve schedulability by carefully threads share cached values. Cache sharing between potentially reduces task times and with fewer resources. Antithetically, may reduce parallelism, decreasing efficiency. Thus, identifying optimal set co-locate that minimizes...

Recent advancements in Industrial Internet-of-Things and cyber-physical systems through the development of wireless standards like WirelessHART ISA100 for real-time reliable communication paved way a new industrial trend called Industry 4.0. 4.0 proposes to improve production efficiency by employing smart factories. One approach is predict external disturbances adjust sampling periods accordingly. In control system, an online adjustment can decrease energy consumption nodes, especially when...

The growing number of Additive Manufacturing Web (AMW) services, offered by different providers over the Internet, makes it challenging for consumers to compare these AMW services select a service their choice. In addition, is even more against personal preferences. This because, preferences on multiple non-functional attributes such as price, material, accuracy and schedule, should be considered selection. decentralized nature coupled need consider during selection, requires system that...

WirelessHART networks provide the feasibility of achieving real-time performance over wireless through multichannel and graph routing for process monitoring control applications. However, scheduling theory Wireless Sensor-Actuator Network (WSAN) is still not well-developed. Besides, a WSAN induces complicated problem involving many interrelated objectives variables, requiring scheduling-control codesign. This work aims at addressing these challenges. Specifically, we will develop realtime...

Multiprocessor scheduling of hard real-time tasks modeled by directed acyclic graphs (DAGs) exploits the inherent parallelism presented model. For DAG tasks, a node represents request to execute an object on one available processors. In task, there may be multiple execution requests for object, each represented distinct node. These offer opportunity reduce their combined cache overhead through coordinated objects as threads within parallel task. The goal this work is realize incorporating...

The industrial Internet of Things (IIoT) is prominently emerging in applications large-scale and wide-area applications, such as oilfield management, smart grid real-time equipment monitoring, integration traffic management systems for cities. Relying on short-range wireless technologies (e.g., WirelessHART ISA100.11a), traditional solutions automation find it challenging to support the expansive scale today’s IIoT. To address this limitation, we propose adopt LoRaWAN, a prominent low-power...

In industrial Internet of Things, feedback control loops employed over wireless sensor-actuator network (WSAN) for various process monitoring and applications require real-time communication stability. the real world, most complex systems are, de facto, Mixed-Criticality (MC) system, meaning that all are not equally critical system's correct operation. While notion mixed-criticality has been studied widely in CPU scheduling, it still remains largely unexplored domain. For MC key challenge...

Today, industrial and agricultural Internet of Things (IoT) are emerging in very large-scale wide-area applications (e.g., oil-field management, smart farming) that may spread over hundreds square miles 45mi×12mi East Texas Oil-field). Although a single Low-Power Wide-Area Network (LPWAN) covers several miles, it faces coverage challenge such extremely large-area IoT applications, specially rural or remote areas with no/limited infrastructure, requiring an in-band integration multiple...