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Ever since Chinese electric power reform in 2002, different live test approaches were introduced and applied in relative industries. There were at least 26 live test approaches applied in the field of power transformation, power transmission and power distribution. The essay introduced a comprehensive dynamic and flexible effectivity evaluation system, which helped to evaluate the strengths and weaknesses...
Targeting to reduce the traffic accident and improve the traffic efficiency, vehicular network is designed to do message exchange via vehicle to vehicle (V2V) and vehicle to infrastructure (V2I) communications. For V2V communications, orthogonal resources (i.e., time slot) are usually allocated for every vehicle to avoid collisions in V2V communications, which needs complex signaling between vehicles...
Hadoop is an open-source big data analysis platform that is widely used in both academia and industry. Decoupling of resource management and programming framework, the next generation of Hadoop, namely Hadoop YARN, is accommodated to various programming frameworks and capable of handling more kinds of workload, such as interactive analysis and stream processing. However, most existent schedulers in...
An automated manufacturing system (AMS) is constituted by numerous, whether sequential or parallel, processes interconnected via a limited number of shared resources. With critical stages as pivots, any monolithic AMS can be partitioned into interacted subsystems. For each of them, there is always an expectation to produce an optimal trajectory in terms of a sequence of events, leading it from the...
Timely examinations are important for the patients to be properly diagnosed and treated. Different urgency levels of patients, different requirements of examinations and patients' behavior make the patients scheduling difficult to solve. To deal with this problem, this paper starts from two examinations, and proposes a Markov Decision Process (MDP) model for scheduling six types of outpatients by...
Latent Dirichlet Allocation (LDA) has been widely applied to text mining. LDA is a probabilistic topic model which processes documents as the probability distribution of topics. One challenging issue in application of LDA is to select the optimal number of topics in LDA model. This paper presents a topic selection method which considers the density of each topic and computes the most unstable topic...
This paper considers a multi-input multi-output (MIMO) wireless relay network, where the source S communicates wirelessly to the destination D via the help of a nonregenerative relay R. Previous studies are almost exclusively based on the assumptions of equal time-duration phases for S-R and R-D transmission and equal number of multiple antennas for every node, and the results concerning arbitrary...
In this paper we present a hybrid multicast and unicast transmission scheme with superposition coding (SC), i.e., the multicast and unicast signals are overlaid across the entire time and frequency domain. In the SC scheme, the multicast and unicast signals are superimposed and transmitted by BS, in each transmission the superimposed multicast signals are transmitted to a multicast group, while the...
The inevitability of IPv6 has come to fore. How to resolve the problem of IP address registration has been a great challenge for network management. The existing solution uses manual registration mechanism, not suitable for dealing with massive IPv6 addresses. Based on the Extensible Provisioning Protocol, we propose an “EPP-IP” mechanism to achieve a flexible and automatic registration management...
We propose a novel discrete spectrum-scan routing scheme in flexible optical networks. Based on spectrum discretization, this scheme achieves optimal routing in a gridless network scenario while reducing the routing complexity from exponential to polynomial.
For managing spectrum effectively in cognitive radio system, a matching game algorithm for spectrum allocation based on POMDP model is proposed. Cognitive users can maximize reward of system through observation statistics of historical information, and adjustment their matching strategy. The simulation results show that the approach realizes efficient allocation of the spectrum resource.
The emerging WiMAX technology (IEEE 802.16) is a fourth generation standard for low-cost, high-speed and long range wireless communications for a large variety of civilian and military applications. IEEE 802.16j has introduced the concept of mesh network model and a special type of node called Relay Station (RS) for traffic relay for Subscriber Stations (SSs). A WiMAX mesh network is able to provide...
A family of flexible-core chip multiprocessors (FCMPs) has been recently proposed to allow simple, identical physical cores to be aggregated dynamically to form larger and more powerful logical processors. However, such flexible-core architecture faces a new significant scheduling problem in the operating system, which traditionally assumes only fixed-number and fixed-granularity processors. This...
It is shown that the objective of optimally specifying redundant actuators under constraints is commonly referred to as a control allocation problem. The problem is often posed as quadratic program (QP) problem, moreover considering the complex constraints case in engineering, some other mathematic programs maybe used, which are not QP. The second order cone program (SOCP), which has the more generality...
The traditional network simulator don't have the ability of simulation for the process of large-scale network security incidents outbreak, we designed a grid-based Internet worm behavior simulator which is consisted of foreground applications and background analog subsystems in parallel. It makes the most of the benefit of the grid computing capability, resource and task management. The experimental...
To deal with the feature of various influencing factors of profit allocation, an evaluation method based on grey relational analysis is developed. When this method is used, evaluation index matrix of cooperative enterprise in supply chain is constructed by analysis and statistics of the influencing factors of profit allocation. Then, a judging matrix is established and solved through the calculation...
In order to obtain the optimal profit allocation strategy among the cooperation enterprises in supply chain, consisting of one supplier and two distributors, Nash negotiation model considering investment weght is developed. Fristly, some advantages and disadvantages of Nash negotiation model in profit allocation of supply chain are discussed. Then, it is proposed to improve the model through the investment...
Grid system is inclined to support resource sharing for mixed types of workloads nowadays to improve the whole user utility, which requires an effective allocation method that not only each workload user can have desirable resources to satisfy its performance requirement from the view of user, but also can avoid shortage or waste of resources from the view of system. Currently, most resource allocation...
Resource management technology enables grid system to support on-demand resource achievement across multi organizations, which acquires great efforts in grid computing research field. Most current grid system can only serve one kind of workload for that resource management and workload management are tightly coupled, called system-centric resource management model, in which the resources utility for...
For Wireless Sensor Networks (WSN), target tracking is a canonical problem that collaborates signal and information processing to dynamically manage sensor resources and efficiently process distributed sensor measurements. This paper proposes an adaptive sensor scheduling strategy that jointly sets up distribute dynamic clustering, selects the tasking sensor, and determines the sampling interval....
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