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The ability to provide a high Quality of Service is a crucial aspect in the acceptance and widespread dispersion of the Industrial Internet of Things and it has a key role to enhance the end user experience. The emerging fog cloud computing architectural concept aims to diminish the experienced latency while simultaneously providing a seemingly unlimited quantity of computational power by moving computations...
In distributed Smart Farming applications, a reliable communication is often crucial, in particular during collaborating operations. In rural areas, the network connectivity via Public Land Mobile Networks is, however, not always sufficient. Network disruptions may occur hindering reliable transmissions. For the delivery of periodic sensor data streams of agricultural machines, several modern communication...
A key success factor for a smart grid lies on reliable data exchange between components across domains in the grid. However, a smart grid involves various types of devices and equipment having different quality concerns and computing capability, which requires a flexible communication platform that can accommodate heterogeneous devices. The Data Distribution Service (DDS) is a standard for data-centric...
Communication system design becomes more complicated due to excessive increase of number of users. Systems need to address this load, while providing acceptable levels of Quality of Service (QoS). Additionally, user expectations, quantified via Quality of Experience (QoE), need to be addressed. QoE is calculated on the application layer, where end users interact with the system. As well as user expectations,...
Adopting new technologies in smart grid (SG) enables the improvement of reliable communication. A key factor for SG efficiency is reliable data exchange between different components and domains in the system. SG must allow remote and quick reaction for different events. This is not a trivial task especially with large scale power grids, which requires SG to have a reliable communication protocol....
This paper concerns the smart exploitation of multimodal communication capabilities of underwater nodes to enable reliable and swift underwater networking. To contrast adverse and highly varying channel conditions we define a smart framework enabling nodes to acquire knowledge on the quality of the communication to neighboring nodes over time. Following a model-based reinforcement learning approach,...
The spry maturation of Internet of Things (IoT) has paved way to the rapid development of numerous sectors and these have been envisioned in; connected transport, smart cities, connected homes, connected healthcare, etc. IoT is a technology that connects "things" that are embedded with sensors, actuators and network connectivity to collect and exchange the data to the internet. The ability...
The Internet of things (IoT) presents the future of internet by incorporating objects to communicate with themselves. Different protocols have been emerged to meet the requirements of limited resource objects of IoT. Constrained Application Protocol (CoAP) is the application protocol which is used in IoT communication stack is prone to performance degradation resulted from traffic congestion. Basic...
The backbone of Internet of Things (IoT) is the communication protocols which seamlessly integrate thousands of nodes and enable a light weight data transfer process. This research is to analyze the efficiency and applicability of different M2M protocols that are available for IoT communication. For the purpose of evaluating the protocols a Raspberry-Pi with Raspbian OS and a temperature sensor are...
The quality of service in Wireless Multimedia Sensor Networks (WMSN) is related to packet loss rate. Recently different studies have been done on developing efficient protocols in the transport layer for controlling packet loss in WMSN. However, all of these protocols are independent of the characteristics of multimedia content. Transport layer for wireless sensor networks have many challenges. One...
Sensor technologies are vital today in gathering information about certain environments and Wireless Sensors Networks (WSNs) are getting more widespread use every day. The recent advances in Wireless Sensor Networks open new scenarios where sensors can be rapidly deployed without any existing infrastructure. Such networks are useful in many fields, such as smart grid, smart water networks, intelligent...
The exponential increase in capacity and data rate demands, along with the diversification of use cases and verticals that are planning to use cellular radio access networks (RANs) to provide connectivity, has prompted the development of the fifth generation (5G) of radio access technology. Traffic steering, which aims at optimum mapping of the data flows to the appropriate RAN access points (APs),...
Software-Defined Networking (SDN) is a promising approach to build future industrial networks. The disruptive change of network architecture and management opens new possibilities in various application domains. While the approach is already deployed in several domains and was also initially examined to be used in the industrial area, many open questions arise when assessing the risks and improvements...
Strict Priority Queuing (SPQ) is a widely used queuing method for applying preferential service on edge networks. SPQ, in presence of persistent high priority traffic, is known to behave in a very hostile manner toward low priority flows, causing them to experience poor TCP performance. This often leads to substantial packet losses, which consequently results in aggressive reduction in the congestion...
The Intel® Omni-Path Architecture (Intel® OPA) is designed to enable a broad class of computations requiring scalable, tightly coupled CPU, memory, and storage resources. Integration between devices in the Intel® OPA family and Intel® CPUs enable improvements in system level packaging and network efficiency. When coupled with the new user-focused open standard APIs developed by the OpenFabrics Alliance...
The Low Extra Delay Background Transport (LEDBAT) protocol is a recently standardized protocol that aims to offer a scavenger service (i.e. the goal is to exploit the remaining and unused capacity of a link). LEDBAT is a delay-based protocol mainly defined by two parameters: a target queuing delay and a gain. The RFC 6817 provides guidelines to configure both parameters that strongly impact on the...
This paper summarizes the evaluation of a totally-ordered, reliable multicast protocol over a cognitive radio (CR) network. Multicast enables a group of nodes to subscribe to broadcast messages. Reliability ensures that all nodes receive messages correctly, totally-ordered ensures that all nodes receive messages in sequential order. In the proposed architecture, CR nodes employ multicast to exchange...
WSNs hold the promise of many new applications that require the network to handle traffic with different priority levels and QoS requirement in an energy efficient way while avoiding collisions and interference. In this paper, we investigate several aspects related to the application requirements and the network states and resources in order to provide multi-QoS routing protocol for WSNs. We propose...
Internet traffic identification and validation has been the subject of intensive study for many years. It is used to provide Quality of Service, to provide security and to implement many other tasks. The reliability of these methods, however, is not proved by formal verification. Therefore, the results of these methods can vary from the lab where these methods were developed and their deployment in...
Multimedia streaming distributed applications, such as uTube or Deezer, imply transmission of important amount of audio and/or video data that induce non-negligible energy consumption. In the same time, those applications are generally characterized by a certain level of losses tolerance. With the aim to reduce the energy consumption associated with the distribution of such applications, this paper...
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