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28 results on '"Xiong, Ao"'

4. Intelligent-Driven Green Resource Allocation for Industrial Internet of Things in 5G Heterogeneous Networks.

Author

Yu, Peng, Yang, Mo, Xiong, Ao, Ding, Yahui, Li, Wenjing, Qiu, Xuesong, Meng, Luoming, Kadoch, Michel, and Cheriet, Mohamed

Abstract

The Industrial Internet of Things (IIoT) is one of the important applications under the 5G massive machine type of communication (mMTC) scenario. To ensure the high reliability of IIoT services, it is necessary to apply an efficient resource allocation method under the dynamic and complex environment. In view of the absence of energy-efficient resource management architecture for the entire network, this article proposes an intelligent-driven green resource allocation mechanism for the IIoT under 5G heterogeneous networks. First, an intelligent end-to-end self-organizing resource allocation framework for IIoT service is given. Next, an energy-efficient resource allocation model within the framework is proposed. It is then solved by an intelligent mechanism with the asynchronous advantage actor critic driven deep reinforcement learning algorithm. Through the comparison analysis of different methods and rewards under IIoT scenarios with proper parameters setting, the proposed method can achieve better performance than other traditional deep learning (DL) methods and maintain service quality above accepted levels as well. [ABSTRACT FROM AUTHOR]

Published
2022
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6. Blockchain-Based VEC Network Trust Management: A DRL Algorithm for Vehicular Service Offloading and Migration.

Author

Ren, Yinlin, Chen, Xingyu, Guo, Song, Guo, Shaoyong, and Xiong, Ao

Subjects
BLOCKCHAINS, DEEP learning, MARKOV processes, ALGORITHMS, PROBLEM solving, GREEDY algorithms
Abstract

To meet the execution requirements of delay-sensitive services in vehicular edge computing (VEC) networks, vehicular services need to be offloaded to edge computing nodes. For complex, large-scale services, the services need to be migrated if the services are not completed before the vehicles leave the coverage of edge computing nodes. Trust and resource matching between areas thus become major problems. This paper studies the decision model of vehicular service offloading and migration. First, software-defined network (SDN) technology is introduced into the traditional network architecture, and a two-layer distributed SDN-controlled VEC network architecture is designed, which is divided into a domain control layer and an area control layer. In this framework, we use the consortium blockchain as a carrier to share network topology information between SDN controllers to prevent information leakage. We then established a service offloading and migration optimization problem model to minimize service execution delay, reduce energy consumption and maximize the throughput of the blockchain system. We describe the problem model as a Markov Decision Process (MDP), introduce a deep reinforcement learning (DRL) algorithm named asynchronous advantage actor-critic (A3C) and design a dynamic service offloading and migration algorithm (DSOMA) based on A3C to solve the problem. Simulation results show that DSOMA can increase the throughput of the blockchain system, and DSOMA is superior to the deep Q-learning (DQN) algorithm and greedy offloading algorithm in reducing service execution delay and system energy consumption. [ABSTRACT FROM AUTHOR]

Published
2021
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13. Numerical Simulations of Dam Break Flow on Complicated Terrain Using VOF Method

Author

Liu Ai-ming, Liu Xueyan, and Xiong Ao-kui

Subjects
Geography, Flood myth, Flow (mathematics), Computer simulation, business.industry, Wave propagation, Numerical analysis, Volume of fluid method, Terrain, Geotechnical engineering, Computational fluid dynamics, business
Abstract

The dam-break problem is important in the design and management of hydraulic engineering. In order to study the spread of dam-break flow on complicated terrain, three-dimensional numerical simulations of the dam-break flow were carried out using VOF in this paper. The results are agreement with experimental data. The complex flow characteristics flood wave propagation process of three-dimensional dam-break flood are demonstrated, which provides scientific basis for the analysis and prevention of disaster caused by dam destruction.

Published
2013

14. Novel mechanism for bandwidth reuse in network virtualization

Author

Dongdong Chen, Zhaowei Qu, Xiong Ao, Shunli Zhang, and Xuesong Qiu

Subjects
Bandwidth management, Dynamic bandwidth allocation, Computer science, business.industry, Network virtualization, Bandwidth throttling, Service provider, Virtualization, computer.software_genre, Idle, Bandwidth allocation, Bandwidth (computing), Resource allocation, The Internet, business, computer, Computer network
Abstract

As one solution to the gradual ossification of the existing networks, network virtualization enables multiple service providers (SPs) to coexist on a shared infrastructure, and it is considered as an integral part of next generation architecture. During the run time, SPs have exclusive rights for the allocated bandwidth resources, which may result in poor performance of bandwidth utilization. In this paper, we introduce a novel bandwidth reuse (BR) mechanism to allow SPs lease their idle bandwidth resources to other SPs as a virtual infrastructure provider (InP). In essence, the BR mechanism is a truthful auction with optimal expected revenue generation, which incentivizes SPs to open up their idle bandwidth significantly. Simulation results demonstrate that the BR mechanism could efficiently generate revenue and improve bandwidth utilization.

Published
2012

15. VCG-based Bandwidth Allocation Scheme for Network Virtualization

Author

Xuesong Qiu, Xiong Ao, Shunli Zhang, and Lv Xia

Subjects
Scheme (programming language), business.industry, Computer science, Distributed computing, Network virtualization, Service provider, Bidding, System model, Bandwidth allocation, Resource allocation, business, computer, Computer network, computer.programming_language
Abstract

Network virtualization has been proposed as a powerful and flexible way to support multiple heterogeneous architectures on a shared infrastructure. A major challenge in this respect lies in the resource allocation problem that allocates the resources of Infrastructure Providers (InPs) among Service Providers (SPs) fairly and efficiently. Because of the complexity in the interaction between InPs and SPs, this problem is more complicated and needs more investigation. This paper introduces an InP-SP-End user (ISE) system model in network virtualization environment, in which we present a bandwidth allocation scheme based on VCG (Vickrey-Clarke-Groves) to maximize the total revenue of SPs by inhibiting selfish action of SPs, and design a Q-learning strategy algorithm in order to obtain optimal bidding strategies for SPs. Simulations and experimental studies demonstrate the effectiveness and the fairness of the proposed scheme, and the convergence of the proposed algorithm.

Published
2012

16. Design and implementation of cloud-based performance testing system for web services

Author

Li Zhang, Fan Tang, Xiong Ao, and Yinghui Chen

Subjects
Test strategy, business.industry, Computer science, Process (engineering), Cloud computing, Software performance testing, computer.software_genre, Software development process, Virtual machine, Cloud testing, Operating system, Web service, business, Software engineering, computer
Abstract

Nowadays testing plays an important role in software development process. While software testing is expensive and time-consuming, sufficient testing is hard, especially for a distributed system using web services technique in the real circumstance. The development of cloud computing provides us new ideas to solve these testing problems. To address these issues, we propose a framework which integrates cloud computing and performance testing technologies. In this paper, first we present the architecture of the cloud-based performance testing system for web services (CPTS), which is a portable, extensible and easy-to-use framework for generating and submitting test workloads to computing clouds. Then, we show the process how to use CPTS to run a performance test and present the concept of dynamic migration in CPTS. Finally, we present our experiences with CPTS in Amazon EC2. We found that the CPTS allows a user to easily set up and test a web services system on the cloud and improve test effectively.

Published
2011

20. The Design of IVR Dial-Test System Based on Os-Workflow Engine

Author

Xia Xiaofeng, Xiong Ao, Meng Xiangping, and Liu Ya

Subjects
business.industry, Computer science, Process design, Service provider, computer.software_genre, Workflow engine, Scheduling (computing), Operator (computer programming), Quality control system, Interactive voice response, Market potential, Operating system, Software engineering, business, computer
Abstract

With the construction of 3G network, value-added services will usher in a new development height for mobile operators. The IVR (Interactive Voice Response) business is one of the great market potential business forms. It becomes particularly important to create a good IVR business market. However, this depends on whether the operator could provide well-qualified quality control system and automatic dial-test mechanism for service providers. Therefore, in consideration of the dial-test difficulties caused by IVR service flow complexity in current IVR systems and based on workflow engine implementing flow operations. This paper analyzed and discussed the IVR work process design, as well as the main configuration files of Os-Workflow, then put forward a visual process-designer idea. And finally the IVR automatic dial-test System is designed

Published
2009

22. The study of network management architecture cube model and its applications

Author

Meng Luo-ming, Xiong Ao, and Qiu Xuesong

Subjects
Enterprise architecture framework, Information management, Computer science, FCAPS, Solution architecture, Network management application, Enterprise architecture management, Multilayered architecture, Asynchronous Transfer Mode, Reference architecture, View model, Network architecture, business.industry, Service management, Telecommunications Management Network, Architecture framework, Network management, Intelligent computer network, Applications architecture, Element management system, Open network architecture, The Internet, Data architecture, business, Space-based architecture, Network management station, Computer network
Abstract

The network management architecture concept and the research issues of the network management architecture are given. Based on TMN logical layer architecture, a cube model of the network management architecture is proposed. The application of the model for ATM network based VPN service management is studied in detail.

Published
2002

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