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Blast furnace gas (BFG) is one of the important secondary energy in the iron and steel enterprises. The reasonable use of BFG can raise economic profit and alleviate the environment pollution. The existing scheduling mode may cause not only a waste of gas, but also additional operations for compensating the inadequate initial scheduling. In this study, a dynamic causal diagram and constraint-based...
In this paper, we construct an analytical design framework for energy efficient scheduling for delay-constrained spectrum aggregation (ESSA), where the practical hardware limitations on SA capability bring various technical challenges. Specifically, the conventional water-filling power control cannot be adopted over all the channels, and the delay-aware scheduling solution should interact with the...
This paper investigates scheduling and control co-deign of vehicle platoons subject to packet dropouts and communication capacity limitation. Each vehicle is modeled as a switching system with multiple modes according to the packet dropouts status and network access status. A scheduling control co-design algorithm is established based on switching system theory. The co-design algorithm is derived...
Providing quality-of-service guarantees by means of fair sharing has never been more challenging in datacenters. Due to the heterogeneity of machine configurations, datacenter jobs frequently specify placement constraints, restricting them to run on a particular class of machines meeting specific hardware/software requirements. In addition, jobs have diverse demands across multiple resource types,...
Based on the requirements of traditional video conference systems and the structure of MCU resource pool, a unified distributed resource pool system is proposed to achieve an integrated solution for conference resource deployment and management. The MCU resource pool architecture is designed by combining the cloud computing, virtualization, distributed resource management, and other core technologies...
In this paper, we introduce a new strategy of using VANET nodes with visual sensors and wireless transceivers to build an instant camera barrier for a given mission period. Given a set of properly equipped VANET nodes whose drivers voluntarily join the protocol by exposing their future travel plans and use onboard equipment to transmit realtime video to the authority, we aim to maintain the barrier...
Middleboxes are ubiquitous in today's networks. They perform deep packet processing such as content-based filtering and transformation, which requires multiple categories of resources (e.g., CPU, memory bandwidth, and link bandwidth). Depending on the processing requirement of traffic, packet processing for different flows may consume vastly different amounts of resources. Multi-resource fair queueing...
The terms parallel distributed systems, and grid and cloud computing, actually refer to slightly different things. But the underlying concept is the same. This is based on delivering computing resources through a large and often global network of computers. To meet the new requirements of a massive distributed computing paradigm, such as cloud, in this paper, a kind of trust mechanism-based task scheduling...
The method of network coding has been proven a promising solution to fanin conflict problems (traffic flows conflicting at input ports) in multicast switches in previous work. However, this approach is inefficient when applied to frame-based switches because of over-splitting with conventional algorithms. These algorithms do not support the benefits of network coding to be fully realized when ignoring...
The problem of a multi-input and multi-output networked control system with communication constraint is addressed in this paper. The shared network medium can only provide a limited number of simultaneous connections for the sensors and actuators to communicate with the controller in the system. A predictive control and scheduling co-design approach is proposed to deal with the problem. In the approach,...
Mobile WiMAX's scheduling service is a key factor in Radio Resource Management (RRM) in realizing Quality of Service (QoS). The choice in scheduling algorithm for Mobile WiMAX base stations, albeit outside of the scope of the standard, critically impacts the performance and robustness of Mobile WiMAX networks. This paper provides an in-depth study of four major scheduling algorithms: Round Robin (RR),...
There are two primary challenges in risk management in development of materiel: (1) The definition of the effect is dominant, which excessively relies on the engineering experience and lacks quantificational assessing methods; (2) There is no efficient way to distinguish cost, schedule and technical risk strictly, it is extremely difficult to evaluate their interrelated effects. This paper presents...
In the relay-enhanced cellular network, the target user will receive uncertain interference due to orthogonal transmission between BS and RS, which would make the traditional mechanisms of link adaptation and channel-aware scheduling invalid. In this paper, a novel resource scheduling scheme is proposed with a semi-static mode, in which dominant interferences for a target user are identified and inter-cell...
A direct prediction method based on empirical mode decomposition and echo state network is proposed to predict coke oven gas generation and consumption of the steel industry. First, the empirical mode decomposition is used to de-noise the practical data with high noise level. Then the direct relationship between the prediction origin and prediction horizon using echo state network is established without...
When the wind speed is between the cut-in and the rated wind speed, the generator control aims at maximum energy capture. The third-order nonlinear model of the Permanent magnet synchronous generator (PMSG)-based wind power conversion system (WECS) is established. In order to ensure maximum energy capture under rated wind speed, firstly, the nonlinear model is linearized around different operating...
High performance using minimal resources has become a serious problem for digital signal processing (DSP) applications. The number of addressable registers is a significant obstacle for centralized architecture achieving high performance of DSP applications. In this paper, we propose a novel cluster based architecture synthesis algorithm, using minimal resources with time and register constraints,...
In any modern petrochemical plant, the plant-wide mass data rendering the real conditions of manufacturing is the key to the operation managements such as production planning, production scheduling and performance analysis. Because of the characteristic of data reconciliation and gross error detection, it is quite suitable to address plant-wide mass balance problem using data reconciliation and gross...
Customer order planning and scheduling (COPS) is an integral part of computer integrated manufacturing system (CIMS). Although many scheduling approaches have been proposed, the two features, i.e. the efficiency and the single shipment requirement are seldom considered simultaneously. Also the design of controlling mechanism for COPS is lack. In this study, we design a controlling mechanism to account...
Considering a great number of manufacturing units and a diversity of product categories in cold rolling production line, a total cost objective function is established in this paper which is on the basis of satisfying the demand of customer orders and controlling inventory within a reasonable range. To obtain a better solution, a class of correlative genetic algorithm is used to solve such function...
TinyOS is an open-source operating system, using Component Description Language NesC for development. TinyOS is designed mostly for wireless sensor network, in which nodes have very limited resources. A representative scheduling mechanism in TinyOS is analyzed and its shortcomings are listed in this paper. An improved design of the priority-based soft real-time task scheduling strategy is proposed...
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