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This paper presents the issue of capacity variable routing in Satellite-HAP system networks with multicasting capabilities, for different traffic types, with the objective of minimizing the short term traffic load oscillations and reacting to the long term changes of the traffic loads. This is realized by learning from the past and using it to influence the current decision. Some of the major QOS...
In order to relieve the conflict between improving service quality and enhancing resource efficiency in Web proxy cache cluster, a new elastic Web proxy cache cluster-EWPCC is presented. Basing on the “on demand” characteristic of cloud computing, EWPCC could acquire resource from cloud when the Web cache system is overloaded and release unnecessary cloud resource after load down. In this way, using...
Network bandwidth and hardware technology are developing rapidly, resulting in the vigorous development of the Internet. A new concept, cloud computing, uses low-power hosts to achieve high reliability. The cloud computing, an Internet-based development in which dynamically scalable and often virtualized resources are provided as a service over the Internet has become a significant issue. The cloud...
Video-on-Demand (VoD) is a typical human-to-machine communication system, in which the application server resources are typically shared by multiple end users and are designed to satisfy normal peak traffic volume based on time-of-day effect. However, the event that catches the attention of a large number of people will trigger flash crowd, which causes unexpected and overloading surge of traffic...
An efficient and stable cluster system would be proposed in this paper for the load balancing of servers. It bases on the improved load balancing algorithm. The cluster system uses load parameter information including CPU utilization, memory utilization, I/O utilization and network traffic to decide the load of each child node. And it adds a redundant node to collect the load balancing parameters...
Dedicated service gateways provide Network services which direct traffic flows. Currently many researchers focus on gateway selection on the Shortest Route, Closest Gateway and not much on the congestion and network traffic in this route. In this paper, we have proposed a novel approach called Optimal Closest Gateway Mechanism with load balancing technique for traffic engineering. Instead of only...
Peer-to-Peer (P2P) systems receive growing acceptance, especially DHT based P2P systems. DHT based P2P systems have an inherent workload uneven distribution problem. Skewed workload distribution will influence the availability and the performance of the system seriously. In this paper, an algorithm based on local state for load balancing in DHT based P2P systems under churn, LSB-Chord (local state...
A Grid is a decentralized, geographically distributed and heterogeneous system in which resources belong to individuals or multiple organizations. Resource management and job scheduling are two important and difficult tasks in grid computing. Scheduling and execution of jobs in a dynamic environment like Grid often calls for efficient algorithms to schedule the resources required for successful execution...
Grid computing is a group of clusters connected over high-speed networks that involves coordinating and sharing computational power, data storage and network resources operating across dynamic and geographically dispersed locations. However, scheduling in grid is confronted with many challenges, because resources are heterogeneous, geographically dispersed and dynamic in nature. In this paper, a secure...
A fundamental problem that confronts peer-to-peer (P2P) applications is to construct an efficient system which can support flexible search. This paper presents CTL-P2P, a cluster-based two-layered P2P architecture model that addresses this problem. CTL-P2P is a combination of structured topology and unstructured topology. It utilizes semantic-based interest and behavioural peer clustering to form...
The paper analyzes the existing Linux virtual server (LVS) cluster load balancing algorithm and its inadequacies that not real-time dynamic full makes an appraisal to the load on the each server node, designs a new Dynamic Feedback Equalization Algorithm for Minimum Weight. The algorithm considers real-time load and response capacity of each server node, makes pre-load rate of the server combined...
Cloud computing, as an emerging computing model, is drawing much attention from academia and industry. Storage resource, computing resource and network resource are three basic resources in a cloud computing infrastructure. How to utilize these resources efficiently and conveniently is a big challenge for building a good cloud computing infrastructure. This paper presents a service-oriented storage...
ID management method is the foundation to implement and maintain DHT overlays, especially for Constant Degree DHTs based on de Bruijn and Kautz, because their topologies are not incrementally expandable and using bit-shifting route schema etc. However, corresponding researches on Constant Degree DHTs are scarce, and realized Constant Degree DHTs usually use pure centralized or distributed ID management...
The load balancing scheduling is the core of the load balancing technology in the cluster system. The actual load of servers will increase suddenly before the load value is updated if many clients link the servers in a short period. A mathematical model of load balancing was improved and an adaptive load balancing optimization scheduling based on genetic algorithm was proposed, analyzed and simulated...
In order to solve the problems of laxity, redundancy and poor interaction that exist in current web curriculum resources and the effectively manage the curriculum resources, this paper is to study the ontology-based curriculum resource management model by taking data-structure curriculum as an example. Protégé ontology editing tool is used to define, classify, establish relationship for curriculum...
As the candidate for the next generation information infrastructure, The grid is catched the close attention of research workers in recent years. Grid resource management makes up of resource discovery, resource allocation, resource location, resource monitoring, and resource renew and so on. In the middle of them, that resource discovery, resource allocation and resource location are implemented...
The resource requesters and providers often belong to different security domains in the opening network. It can be achieved through automated trust negotiation(ATN) to build confidence among strangers and to ensure the security of shared resources. Speeding up subsequent negotiations between the same negotiators is a problem worth of research. This paper analyzed the automatic trust negotiation and...
Multi-channel assignment schemes have recently been proposed to improve the network throughput of multi-hop wireless mesh networks (WMNs). In these schemes, channel coordination is done either through time synchronization across all the nodes, or through the use of a dedicated channel for the transmission of necessary control messages. Either way, excessive system overhead or waste of bandwidth resource...
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