Network service provisioning becomes flexible and programmable with the help of Function Virfitualization (NFV), since NFV abstracts various functions into software components called Virtual (VNF) VNFs can be flexibly quickly composed to form new services. It is commonly known that sharing same VNF among different services improve resource utilization. However, we should aware such also leads serious preemption. In addition, aggravates generation performance bottleneck, which then causes...

Recently, computation offloading methods have greatly improved the Quality of Experience (QoE) in Multi-access Edge Computing (MEC) by tasks to edge servers. Since well-coordinated actions Terminal Devices (TDs) are critical improving performance entire individual system, many practical MEC-based applications, i.e., firefighting robots and unmanned aerial vehicles, require great teamwork among TDs. However, real-world scenarios usually bound resource conditions. For instance, network...

By separating network functionalities from the dedicated hardware and implementing them in form of Virtual Network Function (VNF), Virtualization (NFV) provides a new service paradigm called Service Chain (SFC). It is unrealistic to replace running VNFs due stateful information accumulated, which makes current VNF re-deployment or replacement approaches no longer effective enough. Such situation even worse when are shared. Instead replacing VNFs, this paper proposes migration approach...

Abstract Clustering can help aggregate the topology information and reduce size of routing tables in a mobile ad hoc network (MANET). The maintenance cluster structure should be as stable possible to overhead make less dynamic. Hence, stability measures goodness clustering. However, for complex system like MANET, one clustering metric is far from reflecting dynamics. Some prior works have considered multiple metrics by combining them into weighted sum, which suffers intrinsic drawbacks...

In the software defined network (SDN) environment, function virtualisation enables virtual machine migration. Owing to fact that transferring large amount of data will impede competing workflows, (VNF) migration has brought a new perspective. Many optimised algorithms focusing on limiting time and cost have been proposed. this study, authors address problem from different They view topology global perspective focus effect whole caused by VNF in context SDN. introduce parameter delay...

A differential invariant is a function defined on the jet space of functions that remains same under group action. It an important concept to solve equivalence problem. This paper presents effective method derive special type affine invariants. Given some plane and acting plane, there are induced actions derivative functions. Affine invariants these useful in many applications. However, has been little systematic study this problem at present. No clear simple results available for...

Taking the characteristics of multi-constrained QoS (Quality Service) routing in NGI (Next Generation Internet) into account, a hybrid intelligent multicast algorithm based on PSO (Particle Swarm Optimization) and GA (Genetic Algorithm) is presented. In this paper, corresponding model its mathematical description are introduced. Combining fast searching ability global optimization GA, (such as bandwidth, delay, delay jitter error rate) problem solved. Simulation research performance...

The rapid growth of mobile device (e.g., smart phone and bracelet) has spawned a lot new applications, during which the requirements applications are increasing, while capacities some devices still limited. Such contradiction drives emergency computation migration among edge devices, is lack research currently. In this article, we focus on addressing oriented resource allocation problem devices. Specifically, first construct framework for Mobile Social Cloud(MSC), in with rich resources...

The risks of virtual enterprises exist almost everywhere for they are dynamic, temporary and multi-partners. In order to restrict the risk acceptable level, Multi strategies multi choices (MSMC) programming model is proposed in this paper considering fuzzy characteristics project organization mode enterprises. There many control can be selected each reduce global level model. addition, multi-layer process mechanism two properties, presented paper. To solve model, ant colony algorithm...

With the expansion of Internet, BGP (Border Gateway Protocol) protocol is faced with many challenges. However, inefficient linear method still adopted to process routing UPDATE messages which seriously affects performance protocol. In this paper, we propose a parallel processing for pipeline and multithreading technologies. We also integrate garbage collection thread into method, can further enhance efficiency processing. evaluate our on prototype system Quagga make comparison original BGPD...

In this paper, we propose a new algorithm, Waveband Routing with Layered Auxiliary Graph (WRLAG), to perform the inter-domain and intra-domain routing in multi-domain optical networks. We present (LAG) that includes one virtual topology layer multiple waveband-plane layers compute single-hop, or multi-hop hybrid waveband route for each request based on sub-path grouping scheme. Simulation results show that, WRLAG can save more switching ports obtain lower blocking probability.

Robotics as a Service (RaaS) emerges new paradigm to motivate diversified potential of the "remote-controlled economy" for flexible and efficient service provision with help cloud computing. The multi-robot cooperation (MRC) technology has been widely used in various intelligent logistics scenarios, such warehouses, factories, airports subway stations, benefiting from advantages high operational efficiency low labor cost. While promising, corresponding challenge is that functions deployed on...

In this paper, a QoS multicast routing algorithm in IP/DWDM optical Internet is proposed. Given user request, bandwidth, delay, delay jitter and error rate bounded cost optimized tree constructed based on the shrinking-chaotic-mutation evolutionary with network load balance considered. Simulation results have shown that proposed both feasible effective to improved search ability convergence speed optimal solution over its counterpart traditional genetic algorithm.

Based on the ant colony optimization idea, this paper presents a new algorithm for risk programming problem in virtual enterprise. Using method, entire level of enterprise is minimized by combination solutions with constraint investment. Results numerical tests show effectiveness and it scientific management method programming.

Configuration errors are proved to be the main reasons for network interruption and anomalies. Many researchers have paid their attention configuration analysis provisioning, but few works focus on understanding evolution. In this paper, we uncover evolution of an operational IP backbone based weekly reports gathered from January 2006 2013. We find that rate limiting launching routes new customers configured most frequently. addition, conduct failures link causes failures. suggest should...

The fifth-generation Mobile Communication (5G) has a great advantage in addressing network transmission speed, data quality, and system coordination functions. But with the rapid growth of mobile traffic, spectrum resources cellular cannot meet needs users emerged. Therefore, this paper, we propose cognitive oriented wireless management mechanism based on radio technology theory double auction. is 5G scene ideas, introduction macrocell small cell joint deployment. We design pricing model to...