A5100347197- Software-Defined Networks and 5G
- Advanced Optical Network Technologies
- Network Traffic and Congestion Control
- Cloud Computing and Resource Management
- Advanced Computational Techniques and Applications
- Software System Performance and Reliability
- Network Security and Intrusion Detection
- IoT and Edge/Fog Computing
- Caching and Content Delivery
- Cooperative Communication and Network Coding
- Service-Oriented Architecture and Web Services
- Internet Traffic Analysis and Secure E-voting
- Web Data Mining and Analysis
- Advanced Photonic Communication Systems
- Power Systems and Technologies
- Interconnection Networks and Systems
- Advanced Decision-Making Techniques
- Smart Grid Security and Resilience
- Advanced Algorithms and Applications
- Advanced Wireless Network Optimization
- Full-Duplex Wireless Communications
- Opportunistic and Delay-Tolerant Networks
- Image and Video Quality Assessment
- Advanced Wireless Communication Technologies
- Advanced Computing and Algorithms
Beijing University of Posts and Telecommunications
2016-2025
Sichuan University
2010-2025
State Key Laboratory of Networking and Switching Technology
2013-2024
Beijing Institute of Technology
2024
Sun Yat-sen University
2014-2024
Sun Yat-sen Memorial Hospital
2024
Zhuhai Institute of Advanced Technology
2024
Switch
2021-2022
Beijing Computing Center
2021
Northeastern University
2018-2021
Software defined networking (SDN) is currently regarded as one of the most promising paradigms future Internet. Although availability and scalability that a single centralized controller suffers from could be alleviated by using multiple controllers, there lacks flexible mechanism to balance load among controllers. This paper proposes balancing based on informing strategy for distributed With mechanism, can make decision locally rapidly possible. Experiments floodlight show our each...
Amyloid precursor protein (APP) is enriched at the synapse, but its synaptic function still poorly understood. We previously showed that GABAergic short-term plasticity impaired in App knock-out (App-/-) animals, precise mechanism by which APP regulates transmission has remained elusive. Using electrophysiological, biochemical, moleculobiological, and pharmacological analysis, here we show can physically interact with KCC2, a neuron-specific K+-Cl- cotransporter essential for Cl- homeostasis...
In the network function virtualization (NFV) environment, services are usually provided in form of service chains (SFCs), which defines link order virtual functions required requests and mapped to physical network. Although NFV facilitates flexible provision services, interruptions may occur as a result software hardware failures. Current solutions mostly use backup method ensure reliability SFCs. However, these methods ignore SFC construction phase that has an impact on reliability....
In an academic conference, it is difficult to find people that share similar research interests with you, and also a chore add them into your personal online social network for later communication. Aiming at helping the conference attendees better organize their schedule expand network, we designed developed Find & Connect where used location encounters, together basic services, all through web user interface, in order get homophily physical interactions between users, then base these...
In this paper, we describe a software defined networking (SDN) approach to traffic engineering in inter-data center communication; then present <inline-formula><tex-math notation="LaTeX">$\mathrm{MCTEQ}$</tex-math></inline-formula> , constrained utility-optimization formulation of the joint-bandwidth allocation problem for multiple classes communication. handles priorities between soft manner and explicitly considers delay requirement...
Survivable virtual network embedding (SVNE) aims at a (VN) in way, that after being affected by substrate failures, the VN is still operating. Based on single node failure assumption, any time there can be most one failed node, existing studies for SVNE against failures back up VNs with maximum resource sharing. However, multiple do happen reality, thus those methods are not always effective. In this paper, we propose topology-aware approach to enhancing survivability failures. We make use...
When allocating network bandwidth to multiple classes of applications in inter-data center communication, coordination always yields a better utilization the backbone network. Yet, it often comes at prohibitively heavy computational and communication cost, making thus far not practically viable approach. SDN helped bridging cost gap by enabling centralized control, has been recently applied such inter-DC traffic management. However, is still an issue as efficient fast response engineering...
Software Defined Networking (SDN) enables the underlying infrastructure to be abstracted from network services and controlled by one or more controllers. If a link node fails, switches that can detect failure have either inform controller update flow tables transform data pre-configured paths recover failure. However, existing recovery approaches mainly consider delay packet loss, ignore storage resources consumption for backup in case of Moreover, Ternary Content Addressable Memory (TCAM)...
Network Function Virtualization (NFV) is an important shift in telecommunication service provisioning. It enables the decoupling of network element functions and dedicated hardware devices. How to economically place chain Virtual Functions (VNFs) according requirements Service Chains (SFCs) are challenges for NFV orchestration. In this paper, we consider offline deployment issue from perspective sharing VNF instance improve resource utilization reduce total placement costs. Firstly,...
With the popularization and spread of SDN, size SDN networks is increasing; controller placement a key problem in software defined (SDNs). In this paper, an optimized method proposed, which takes into consideration load controllers, co-located deployment propagation latency to determine optimal number location controllers. Firstly, multi-objective genetic algorithm used get connection relationship controllers switches, so network can be partitioned several domains. Secondly, minimum delay...
Satellite communication network (SCN) has the capability to provide long-distance and high-quality services. It could play a significant role in future networks for its high reliability large capacity. However, SCN still needs more efficient resources allocation dynamical traffic scheduling. As new design paradigm, functions virtualization (NFV) is potential facilitate performance of traditional networks, including SCN. Therefore, applicability NFV attracted many people's attention,...
Software products frequently evolve. When the production code undergoes major changes such as feature addition or removal, corresponding test typically should co-evolve. Otherwise, outdated may be ineffective in revealing faults cause spurious failures, which could confuse developers and waste QA resources. Despite its importance, maintaining co-evolution can time- resource-consuming. Existing work has disclosed that, practice, often fails to co-evolve with code. To facilitate of code, this...
Software-defined networking (SDN) enables a network to be programmable, which makes it easy for the recover from failures. Upon failure, can revert operational state through preprogrammed recovery strategies. However, most of existing approaches do not consider storage resource consumption. Nowadays scale and number flows increase greatly, numerous flow entries are required in case failures, but Ternary Content Addressable Memory (TCAM) that stores is very expensive capacity-limited....
Network function virtualization is a new network concept that moves functions from dedicated hardware to software-defined applications running on standard high volume severs. In order accomplish services, traffic flows are usually processed by list of in sequence which defined service chain. By incorporating inter-data center (DC) network, we can use the resources intelligently and deploy services faster. However, orchestrating chains across multiple data centers will incur deployment cost,...
Software-defined networking (SDN) is a great innovation, which makes the network programmable so that it easier to achieve failures recovery. Through pre-programmed recovery strategies and pre-deployed backup resource, flows can be redirected destination quickly upon failures. However, consumes large amount of resources for fast failover. Nowadays scale magnitude increase greatly, leads need deploy number flow entries in face Ternary Content Addressable Memory (TCAM) stores capacity-limited....
Nowadays computing resources can be acquired from IaaS cloud providers in different purchasing options. Taking Amazon Elastic Compute Cloud (EC2) for instance, there are three models, and each option has price yields benefit to clients. The issue that we address this paper is how users could make a provisioning plan resources. We propose model which based on the characteristics of options provided by EC2, used guiding capacity planning activity.
Network virtualization has been regarded as a core attribute of the Future Internet. In Virtualization Environment (NVE), heterogeneous virtual networks can share same physical infrastructure regardless their different topologies, demands, protocols and so on. this case, Survivable Virtual Embedding (SVNE) problem becomes increasingly critical to overcome failure infrastructure. Backup resources needed provide survivability network undoubtedly increase challenge efficiency SVNE. paper, we...
This paper focus on on-line placement and scheduling of tasks with known executing time reconfigurable devices. The notion recognition-earliest for algorithms is introduced, that the algorithm can arrange start a newly arrived task as early possible. A new proposed. By exploit knowledge about temporal properties each task, attains recognition-earliest. fast also presented. evaluation results show proposed one fastest algorithm, achieves best performance compared previous algorithms, while...