The Experts below are selected from a list of 21699 Experts worldwide ranked by ideXlab platform
Zhu Han - One of the best experts on this subject based on the ideXlab platform.
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cyclic three sided matching game inspired wireless Network Virtualization
IEEE Transactions on Mobile Computing, 2021Co-Authors: Neetu Raveendran, Chunxiao Jiang, Miao Pan, Nguyen H Tran, Lingyang Song, Zhu HanAbstract:Wireless Network Virtualization is basically the abstraction, isolation, and sharing of wireless resources among different entities. Consequently, Virtualization provides great flexibility and higher Network efficiency, and enables easier migration to new technologies in wireless Networks. Traditionally, a wireless Network Virtualization controller manages the virtual resources (including radio resources and infrastructure resources) known as slices which are available to the Service Providers (SPs). The SPs then allocate their purchased resources to serve their subscribed mobile users. Such a centralized allocation decouples the Quality-of-Service (QoS) management by the SPs from the virtual resource management by the controller. In this paper, we propose a matching based wireless Network Virtualization resource allocation mechanism: a distributed three-sided (3D) matching between radio resources, physical infrastructure and mobile users. The Restricted Three-sided Matching with Size and Cyclic preference model (R-TMSC) is implemented to obtain a stable solution. Simulation results show that our proposed spectrum-oriented and user-oriented algorithms outperform the traditional resource allocation schemes. The spectrum-oriented algorithm enhances the user throughput and the system performance, within a lesser run time. Furthermore, for an increasing number of users, the proposed algorithms serve more users than traditional methods.
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Network Virtualization resource allocation and economics based on prey predator food chain model
IEEE Transactions on Communications, 2018Co-Authors: Reginald A Banez, Nguyen H Tran, Ju Bin Song, Choong Seon Hong, Zhu HanAbstract:Network Virtualization (NV) allows multiple heterogeneous virtual Networks (VNs) to coexist and operate over the same physical Network (PN) infrastructures. Some of the benefits of this advancement include flexibility in VN topologies, heterogeneity in VN technologies, and modularity of Network operations. However, there are a few areas, such as resource allocation and economics, which challenge the implementation of NV. In this paper, we first introduce some NV parameters that influence the resource allocation and economics of an NV system. Next, we formulate an economic model for NV using the prey-predator food chain model. This model takes into account the dynamics in an NV system, such as the service, payoff, failure, and competition rates within each VN and PN. The solution point to this model represents the resource strategy of the service provider (SP) given the number of users trying to use its VN, as well as the resource strategy of the infrastructure provider (InP) given the strategy of the VN leasing its PN. In addition, we establish economic models that relate the capacities of the end users, the SP, and the InP. Finally, we provided simulations that show how the prey-predator food chain model fits well on an NV system.
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Virtual Resource Allocation in Information-Centric Wireless Networks With Virtualization
IEEE Transactions on Vehicular Technology, 2016Co-Authors: C. Liang, Haipeng Yao, Zhu HanAbstract:Wireless Network Virtualization and information-centric Networking (ICN) are two promising technologies in next-generation wireless Networks. Traditionally, these two technologies have been addressed separately. In this paper, we show that jointly considering wireless Network Virtualization and ICN is necessary. Specifically, we propose an information-centric wireless Network Virtualization framework for enabling wireless Network Virtualization and ICN. Then, we formulate the virtual resource allocation and in-Network caching strategy as an optimization problem, considering not only the revenue earned by serving the end users but the cost-of-leasing infrastructure as well. In addition, with recent advances in distributed convex optimization, we develop an efficient alternating direction method of multipliers (ADMM)-based distributed virtual resource allocation and in-Network caching scheme. Simulation results are presented to show the effectiveness of the proposed scheme.
C. Liang - One of the best experts on this subject based on the ideXlab platform.
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Virtual Resource Allocation in Information-Centric Wireless Networks With Virtualization
IEEE Transactions on Vehicular Technology, 2016Co-Authors: C. Liang, Haipeng Yao, Zhu HanAbstract:Wireless Network Virtualization and information-centric Networking (ICN) are two promising technologies in next-generation wireless Networks. Traditionally, these two technologies have been addressed separately. In this paper, we show that jointly considering wireless Network Virtualization and ICN is necessary. Specifically, we propose an information-centric wireless Network Virtualization framework for enabling wireless Network Virtualization and ICN. Then, we formulate the virtual resource allocation and in-Network caching strategy as an optimization problem, considering not only the revenue earned by serving the end users but the cost-of-leasing infrastructure as well. In addition, with recent advances in distributed convex optimization, we develop an efficient alternating direction method of multipliers (ADMM)-based distributed virtual resource allocation and in-Network caching scheme. Simulation results are presented to show the effectiveness of the proposed scheme.
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Information-centric Network function Virtualization over 5g mobile wireless Networks
IEEE Network, 2015Co-Authors: C. Liang, F.r. Yu, Richard F. Yu, Xin Zhang, Xi ZhangAbstract:Wireless Network Virtualization and information-centric Networking (ICN) are two promising techniques in software-defined 5G mobile wireless Networks. Traditionally, these two technologies have been addressed separately. In this paper we show that integrating wireless Network Virtualization with ICN techniques can significantly improve the end-to-end Network performance. In particular, we propose an information- centric wireless Network Virtualization architecture for integrating wireless Network Virtualization with ICN. We develop the key components of this architecture: radio spectrum resource, wireless Network infrastructure, virtual resources (including content-level slicing, Network-level slicing, and flow-level slicing), and informationcentric wireless Virtualization controller. Then we formulate the virtual resource allocation and in-Network caching strategy as an optimization problem, considering the gain of not only Virtualization but also in-Network caching in our proposed information-centric wireless Network Virtualization architecture. The obtained simulation results show that our proposed information-centric wireless Network Virtualization architecture and the related schemes significantly outperform the other existing schemes.
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wireless Network Virtualization a survey some research issues and challenges
IEEE Communications Surveys and Tutorials, 2015Co-Authors: C. Liang, Richard F. YuAbstract:Since wireless Network Virtualization enables abstraction and sharing of infrastructure and radio spectrum resources, the overall expenses of wireless Network deployment and operation can be reduced significantly. Moreover, wireless Network Virtualization can provide easier migration to newer products or technologies by isolating part of the Network. Despite the potential vision of wireless Network Virtualization, several significant research challenges remain to be addressed before widespread deployment of wireless Network Virtualization, including isolation, control signaling, resource discovery and allocation, mobility management, Network management and operation, and security as well as non-technical issues such as governance regulations, etc. In this paper, we provide a brief survey on some of the works that have already been done to achieve wireless Network Virtualization, and discuss some research issues and challenges. We identify several important aspects of wireless Network Virtualization: overview, motivations, framework, performance metrics, enabling technologies, and challenges. Finally, we explore some broader perspectives in realizing wireless Network Virtualization.
Raouf Boutaba - One of the best experts on this subject based on the ideXlab platform.
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svne survivable virtual Network embedding algorithms for Network Virtualization
IEEE Transactions on Network and Service Management, 2013Co-Authors: Muntasir Raihan Rahman, Raouf BoutabaAbstract:Network Virtualization can offer more flexibility and better manageability for the future Internet by allowing multiple heterogeneous virtual Networks (VN) to coexist on a shared infrastructure provider (InP) Network. A major challenge in this respect is the VN embedding problem that deals with the efficient mapping of virtual resources on InP Network resources. Previous research focused on heuristic algorithms for the VN embedding problem assuming that the InP Network remains operational at all times. In this paper, we remove this assumption by formulating the survivable virtual Network embedding (SVNE) problem. We then develop a pro-active, and a hybrid policy heuristic to solve it, and a baseline policy heuristic to compare to. The hybrid policy is based on a fast re-routing strategy and utilizes a pre-reserved quota for backup on each physical link. Our evaluation results show that our proposed heuristics for SVNE outperform the baseline heuristic in terms of long term business profit for the InP, acceptance ratio, bandwidth efficiency, and response time.
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multi provider service negotiation and contracting in Network Virtualization
Network Operations and Management Symposium, 2010Co-Authors: Fidae Zaheer, Jin Xiao, Raouf BoutabaAbstract:Network Virtualization environment (VNE) affords great business flexibility to the customers and the providers as multiple providers can jointly support a customer's virtual Network. Under the current Network model, a group of Infrastructure Providers (InPs) peer with each other to provide a packaged deal. Such a business arrangement is not customer-driven, does not promote fair market competition and does not ensure cost minimization. Furthermore, the on-demand nature of virtual Networks requires efficient and automated service negotiation and contracting. In this paper, we present V-Mart. To the InPs, V-Mart offers an environment to participate in a faithful and fair competition over the VN resources; and to the SPs, it offers a customer-driven virtual resource partitioning and contracting engine. V-Mart uses a two-stage Vickrey auction model that is strategy-proof, flexible to diverse InP pricing models, and functions over heterogenous multi-commodity market that characterizes the NVE. Through analysis and simulation we show the flexibility and effectiveness of V-Mart.
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a survey of Network Virtualization
Computer Networks, 2010Co-Authors: N Mosharaf Kabir M Chowdhury, Raouf BoutabaAbstract:Due to the existence of multiple stakeholders with conflicting goals and policies, alterations to the existing Internet architecture are now limited to simple incremental updates; deployment of any new, radically different technology is next to impossible. To fend off this ossification, Network Virtualization has been propounded as a diversifying attribute of the future inter-Networking paradigm. By introducing a plurality of heterogeneous Network architectures cohabiting on a shared physical substrate, Network Virtualization promotes innovations and diversified applications. In this paper, we survey the existing technologies and a wide array of past and state-of-the-art projects on Network Virtualization followed by a discussion of major challenges in this area.
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Network Virtualization state of the art and research challenges
IEEE Communications Magazine, 2009Co-Authors: N Mosharaf Kabir M Chowdhury, Raouf BoutabaAbstract:Recently Network Virtualization has been pushed forward by its proponents as a long-term solution to the gradual ossification problem faced by the existing Internet and proposed to be an integral part of the next-generation Networking paradigm. By allowing multiple heterogeneous Network architectures to cohabit on a shared physical substrate, Network Virtualization provides flexibility, promotes diversity, and promises security and increased manageability. However, many technical issues stand in the way of its successful realization. This article investigates the past and the state of the art in Network Virtualization along with the future challenges that must be addressed to realize a viable Network Virtualization environment.
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imark an identity management framework for Network Virtualization environment
Integrated Network Management, 2009Co-Authors: N Mosharaf Kabir M Chowdhury, Fidae Zaheer, Raouf BoutabaAbstract:In recent years, Network Virtualization has been propounded as an open and flexible future interNetworking paradigm that allows multiple virtual Networks (VNs) to co-exist on a shared physical substrate. Each VN in a Network Virtualization environment (NVE) is free to implement its own naming, addressing, routing, and transport mechanisms. While such flexibility allows fast and easy deployment of diversified applications and services, ensuring end-to-end communication and universal connectivity poses a daunting challenge. This paper advocates that effective and efficient management of heterogeneous identifier spaces is the key to solving the problem of end-to-end connectivity in an NVE. We propose iMark, an identity management framework based on a global identity space, which enables end hosts to communicate with each other within and outside of their own Networks through a set of controllers, adapters, and well-placed mappings without sacrificing the autonomy of the concerned VNs. We describe the procedures that manipulate these mappings between different identifier spaces and provide performance evaluation of the proposed framework.
Richard F. Yu - One of the best experts on this subject based on the ideXlab platform.
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Information-centric Network function Virtualization over 5g mobile wireless Networks
IEEE Network, 2015Co-Authors: C. Liang, F.r. Yu, Richard F. Yu, Xin Zhang, Xi ZhangAbstract:Wireless Network Virtualization and information-centric Networking (ICN) are two promising techniques in software-defined 5G mobile wireless Networks. Traditionally, these two technologies have been addressed separately. In this paper we show that integrating wireless Network Virtualization with ICN techniques can significantly improve the end-to-end Network performance. In particular, we propose an information- centric wireless Network Virtualization architecture for integrating wireless Network Virtualization with ICN. We develop the key components of this architecture: radio spectrum resource, wireless Network infrastructure, virtual resources (including content-level slicing, Network-level slicing, and flow-level slicing), and informationcentric wireless Virtualization controller. Then we formulate the virtual resource allocation and in-Network caching strategy as an optimization problem, considering the gain of not only Virtualization but also in-Network caching in our proposed information-centric wireless Network Virtualization architecture. The obtained simulation results show that our proposed information-centric wireless Network Virtualization architecture and the related schemes significantly outperform the other existing schemes.
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wireless Network Virtualization a survey some research issues and challenges
IEEE Communications Surveys and Tutorials, 2015Co-Authors: C. Liang, Richard F. YuAbstract:Since wireless Network Virtualization enables abstraction and sharing of infrastructure and radio spectrum resources, the overall expenses of wireless Network deployment and operation can be reduced significantly. Moreover, wireless Network Virtualization can provide easier migration to newer products or technologies by isolating part of the Network. Despite the potential vision of wireless Network Virtualization, several significant research challenges remain to be addressed before widespread deployment of wireless Network Virtualization, including isolation, control signaling, resource discovery and allocation, mobility management, Network management and operation, and security as well as non-technical issues such as governance regulations, etc. In this paper, we provide a brief survey on some of the works that have already been done to achieve wireless Network Virtualization, and discuss some research issues and challenges. We identify several important aspects of wireless Network Virtualization: overview, motivations, framework, performance metrics, enabling technologies, and challenges. Finally, we explore some broader perspectives in realizing wireless Network Virtualization.
Bin Ning - One of the best experts on this subject based on the ideXlab platform.
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an integrated train ground communication system using wireless Network Virtualization security and quality of service provisioning
IEEE Transactions on Vehicular Technology, 2016Co-Authors: Li Zhu, Tao Tang, Bin NingAbstract:In existing urban rail transit systems, train-ground communication systems for different applications are deployed independently. Investing train-ground communication infrastructures repeatedly not only wastes substantial social resources, it also brings difficulties in maintaining all of the infrastructures. In this paper, with recent advances in wireless Network Virtualization, we design an integrated train-ground communication system for different urban rail transit applications, including communication-based train control systems, passenger information systems, and closed-circuit television systems. A prevention-based security scheme is used in the integrated train-ground communication system. With the objective to optimize the system quality of service (QoS) and improve the system security performance, we formulate the QoS and security problem as a Q-Learning problem. Extensive simulation results show that the system QoS and security performance can be improved substantially in the proposed integrated train-ground communication system.