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Compared to conventional processors, stochastic computing architectures have strong potential to speed up computation time and to reduce power consumption. We present such an architecture, called Bayesian Machine (BM), dedicated to solving Bayesian inference problems. Given a set of noisy signals provided by low-level sensors, a BM estimates the posterior probability distribution of an unknown target...
The long time-delay will result in the performance degradation of the networked control system. In this paper, a time-delay compensation method based on time stamp and fast implicit generalized predictive control is proposed. Because the differential action is introduced, this fast implicit generalized predictive control algorithm reduces the computation time and improves the performance of the control...
This paper investigates event-triggered distributed control of networked large-scale systems under simultaneous consideration of network dynamics. Based on an information dispatching middleware, a framework of networked distributed large-scale systems is established. In terms of the middleware, the information selection module is developed to regulate the transmission of the sampled data by means...
Cyber-physical agnosticism (CPA) is a property of software in cyber-physical systems (CPS) to withstand various disturbances and keep maintaining the required behaviour of the physical process. With the increased research on the use of internet of things (IoT) in industrial automation (IoT-A), there is a need for robust distributed automation control systems that can take into account some overheads...
In industrial automation, EtherCAT is a real-time communication protocol widely employed in the local computer networks for fast and predictable data communication between system processes. End-to-end delay is a key performance indicator to industrial applications as it reflects the real-time capability of the system. This paper explores end-to-end delays of EtherCAT-based control systems under different...
We consider the conditions of functioning of the distributed measurement system according to the strict schedule. The system consists of several local stations integrated into the computer network with the ring structure. Sensors of measurement system have different polling periods (polled with different frequencies) with frequencies ratios are natural numbers. Design method for the operation of that...
E-health is one of the domains which will need more and more IoT solutions in the future, as it requires short delays for life-dependency situations and safe local storage spaces for privacy matters. The emergency context demands efficient communication and computing capacities, and the cloud vision as well as traditional TCP/IP way of communication cannot really suit these requirements. New approaches...
The estimation value of time delay between two leakage signals is the main factor affecting the accuracy of leak location during the pipeline leak location. How to quickly find out the delay time and improve the positioning accuracy are difficulties. In this paper, the basic principle of leak location and LMS adaptive filtering algorithm were analyzed, then for computational complexity and the positioning...
The emerging 5G networks will enable control-oriented applications where sensors, actuators, processors and controllers are geographically distributed and wirelessly connected. One major challenge of networked control systems (NCSs) is how to guarantee the stability of all control loops in the presence of communication delay. Addressing this problem, the control community generally focuses on designing...
Industrial IoT networks are typically used for monitoring systems and supporting control loops, as well as for movement detection systems, process control and factory automation. To this end, data generated by monitoring IoT devices are collected, elaborated and sent to controllers and actuators. The routing of data from IoT sensors to actuators is an integral part of any large-scale industrial network...
In this paper, we propose a fully-integrated radar and communication system — named ComSens. We utilize two different pilot sequences (one for uplink and one for downlink) with the condition that they must be uncorrelated to each other. Within such a framework, the signal received from end-user and the back-scattered signal from the desired objects have uncorrelated pilots. Thus, the base-station...
This paper presents the design for a prototype tactical dynamic spectrum access (DSA) mobile ad hoc network, where the network is organized into clusters operating on a single frequency. The frequency may be changed autonomously by the network in response to jamming or interference, after some frequency switching delay. The network node design is implementable on a software defined radio (SDR), such...
In this paper, we propose and analyze new spectrum-efficient communication and radar sensing systems (named ComSens) operating in full-duplex mode with frequency division duplex scheme. ComSens simultaneously use the pilot overhead for channel estimation and radar sensing. The performances of ComSens are analyzed in terms of ergodic communication data-rate and radar estimation rate. The total system...
During the past a few years, control systems are greatly influenced by the evolution of networked control systems (NCSs). However, challenges such as time-delay and packet dropouts in NCSs are still breaking its stride. To analyse and tackle those constraints, Markov chains had been widely used to model time-delay and packet dropouts, and a set of controllers had been designed thereafter. Nevertheless,...
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...
To provide efficient and effective mechanism for the network management it's necessary to create unified and flexible tool, independent from hardware solutions. Such tool could be set of policies, which control the behavior of radios, using predefined languages and parameters.
Internet-of-things (IoT) paradigm exploits the Distributed Measurement System (DMS) to execute measurements. Each node of the DMS has computational and communicative capabilities, and can be equipped by sensors and measurement instruments. Therefore, it can be assumed as Smart Object (SO). The availability of mobile SO (MSO) (cars, smartphones, drones) is taken into consideration in the research to...
In this paper, we consider an alternative low-cost and flexible solution of using an analog antenna array for radio sensing at the base station receiver in the recently proposed perceptive mobile networks. We provide receiver beamforming design, and advanced compressive sensing (CS) signal processing techniques for sensing parameter estimation in a multiuser-MIMO (MU-MIMO) communications system. Simulation...
The use of social media to network or connect users across the globe has led to high demand in spectrum utilisation hence there is a need for faster data transmission. Faster data transmission can be achieved through the implementation of techniques which minimizes delays in sensing idle channels for SU data transmission. In this study, we implement a channel selection algorithm to minimize channel...
Heterogeneous multicores provide alternative core types and potentially multiple voltage-frequency levels to execute workloads more efficiently. One fundamental obstacle for capitalizing their potential performance and energy gains is identifying the most appropriate configuration (core type and voltage-frequency pair) for executing the computations at hand. In this paper, we analyze an ARM big.LITTLE...
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