The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Cloud radio access network (C-RAN) interconnects thousands of terminal devices to support the services of Internet of Things (IoT) in 5G area. However, centralized access authentication of each terminal has been performed in mobile core network which causes an extremely high operating and capital expenditure of network. Traditional C-RAN cannot provide an authentic mechanism to guarantee the security...
In this paper, we present a novel cross-stratum resources integration (CSRI) architecture in fog-computing-based radio over fiber networks (F-RoFN) for 5G services. Additionally, a cross-stratum optimization (CSO) scheme is introduced in the proposed architecture. The CSRI architecture with CSO scheme can effectively pull the remote processing resource locally to implement the cooperative radio resource...
We present a micro edge cloud (MEC) architecture for resource optimization and implement the virtualization of resource. The virtualization solution is demonstrated to verify the overall feasibility and efficiency.
An advanced dynamic spectrum allocation scheme based on fairness aware and fragmentation reduction is proposed to address the service fairness problem. Simulation results imply that the proposed scheme can greatly improve service fairness and reduce spectrum fragmentation.
This paper proposes a flexible intelligence cloud-based radio over optical fiber networks by designing and using a reconfigurable wavelength-frequency selective switch. Numerical results demonstrate the feasibility of the proposed architecture and excellent spectrum effectiveness.
We propose a multi-path fragmentation-aware routing, modulation and spectrum assignment algorithm (RMSA) for advance reservation (AR) and immediate reservation (IR) requests in elastic optical networks. To decrease fragmentation, we propose splitting requests into different parts and transferring each of these parts along a single-path or multi-paths utilizing sliceable bandwidth variable transponders...
To achieve the Fiber-wireless (FiWi) access network's seamless networking as well as to alleviate bandwidth tension, network virtualization is applied in FiWi networks. With the virtualization of the network, the growing number of people share the same physical resources. However, network components, once out of order, will inevitably bring a lot of loss to more users. Meanwhile, if a node or link...
Space division multiplexing (SDM) over multi-core fiber (MCF) is advocated as a promising technology to overcome the capacity limit of the current single-core optical networks. Network survivability has become a more important concern to guarantee the QoS of more plentiful network traffics. In this paper, we have an investigation about dedicated path protection with considering inter-core crosstalk...
This paper proposes multi-dimensional resource mapping algorithms for inter-datacenter optical networks. Simulation results show that these proposed mapping algorithms can achieve better performance in blocking probability and revenue-to-cost ratio than the baseline algorithm.
Cloud radio access network (C-RAN) has become a promising scenario to accommodate high-performance services with ubiquitous user coverage and real-time cloud computing using cloud BBUs. In this paper, we propose a novel multistratum resources optimization (MSRO) architecture for cloud-based radio over optical fiber networks with software defined networking. Additionally, a global evaluation strategy...
Driven by 5G communication, the mobile core network will be greatly challenged. In this paper, we propose a novel mobile core network architecture based on SDON, then proposed a scheme to optimize the allocation of optical resource for mobile traffic.
We present a data center service localization architecture based on virtual resource migration in software defined elastic optical network. The overall feasibility and efficiency of the proposed architecture are experimentally verified on our testbed.
This paper focuses on the concept of multi-path virtual concatenation as a key enabling technology to support the requirements of spectrum bandwidth of link mapping in the process of virtual network embedding (VNE). A dynamic VNE_MP algorithm for distributed data centers inter-connecting is proposed. Based on the multi-path virtual concatenation mechanisms, a virtual link is split into multiple smaller...
Currently, service characteristic is rarely considered in service processing for the optical network. In this paper, we introduce a novel service-basedscheme which will buffer and schedule services to optimize the blocking performance of flexi-grid optical network based on Software Defined Network (SDN). This scheme gives sufficient consideration to the diversity of services in SDN network. Besides,...
We propose a multi-stratum resilience (MSR) architecture for services with resources integrated graph (RIG) strategy in software defined data center interconnection based on IP over elastic optical networks. The feasibility and efficiency are verified on OpenFlow-based control plane.
In this paper, compared with the previous works about software defined network (SDN), software defined optical network (SDON) has the advantages of less delay and higher transmission rate. Using extended OpenFlow protocol (OFP), we develop a network management (NM) system match the centralized control mechanism and propose a remote centralized control platform with cloud service in SDON. Among the...
We demonstrate the disaster resilience of electric power applications for software defined disaster recovery center networking (SD-DRCN) based on elastic optical network. The overall feasibility and performances of the architecture are verified in our study.
We propose a novel global resources integrated resilience (GRIR) algorithm for a software defined data center interconnection architecture based on IP over elastic optical network (EON). The proposed algorithm provides resilience using the multiple stratums resources and enhances the data center service resilience responsiveness to the dynamic end-to-end recovery demands in case of the converged optical...
Moving from dynamic lighptpath provisioning to virtual network provisioning, Optical as a Service (OaaS) is developing rapidly driven by data center application, which could be mainly enabled by Software Defined Networking (SDN).
Due to the high burstiness and high-bandwidth characteristics of the services, optical interconnect in intra-datacenter networks has attracted much attention. Many datacenter applications in the environment require lower delay and higher availability with the end-to-end guaranteed quality of service. In this paper, we propose a novel time-aware software defined networking (TaSDN) architecture for...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.