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We develop a protocol through which multipath enabled IP routers collectively engage in dynamic traffic engineering, to optimize performance in concert with legacy TCP congestion control. We build on recent theory which shows a globally optimum resource allocation across the TCP/IP layers can be achieved through control of rates and multipath routing fractions following a consistent congestion signal...
Content-based publish/subscribe allows for highly expressive descriptions of subscriptions and thus is more appropriate for content dissemination when a finer level of granularity is necessary. However, scalability has become an issue due to the expensive matching and delivering inherent in content-based events. In this paper we propose a novel content-based publish/subscribe framework built over...
We investigate the challenging problem of joint topology design and load balancing in FSO networks. Important factors such as FSO link characteristics, cost constraints, traffic characteristics, traffic demand, and QoS requirements are considered in the problem formulation, along with objective functions of network-wide average traffic load and delay. We develop a fast heuristic algorithm to provide...
In this paper, aimed at how to solve load imbalance problem when exploiting P2P technology in telecommunications network, we propose a load balancing algorithm GALB. In GALB algorithm, the intra-domain load transfer is mainly used for temporary load imbalance. For emergency leading to a large amount of concurrent user request, we will adopt the inter-domain load transfer. Experimental results show...
A fundamental problem in large peer-to-peer application is finding a routing method by which the user can efficiently locate the nodes those stores a particular data item. In this paper we present a new resource routing method: redundant De Bruijn routing graph(RDBR). Every node in RDBR has main routing label and assistant routing label, a group of nodes with same main routing label constitute of...
In packet-switched computer networks, one of several challenging issues is how to determine an optimal path that satisfies a set of constraints while maintaining high utilization of network resources. This paper proposes an improved particle swarm optimization utilizing Iterative Chaotic Map with Infinite Collapses (ICMIC) perturbations (ICMICPSO) for shortest path computation in computer networks...
In this paper, a practical routing protocol that maximizes the guaranteed node traffic loads in reliable networks is designed and analyzed. The derived node traffic loads can be routed for every traffic pattern, and regardless of the possible single node or link failures. First, it is described how load balanced shortest path routing (LB-SPR) can be optimized to maximize the value of the guaranteed...
Emerging Peer-to-Peer (P2P) technologies have enabled various types of content to be efficiently distributed over the Internet. Most P2P systems adopt selfish peer selection schemes in the application layer that in some sense optimize the user quality of experience. On the network side, traffic engineering (TE) is deployed by ISPs in order to achieve overall efficient network resource utilization...
The distributed optimal path planning (D-OPP) problem has been a bottleneck restricting the performance of Peer-to-Peer (P2P) workflow systems which have met the development trend of workflow systems and been one of the most important domains of Distributed computing. The essence of this problem is to solve the dynamical global optimization in local views without centralized mechanism. Aiming at this...
Pub/Sub systems permit users to submit subscriptions and notify interested users of the events detected in a distributed way. Moving a Pub/Sub system to a cloud infrastructure is for high performance and scalability. This paper describes how to migrate two Pub/Sub systems i.e. PADRES and Once Pub Sub to Xen Cloud Platform, especially proposes black-box method, grey-box method and white-box method...
Recently, structured P2P (Peer-to-Peer) system has become more and more popular. However, P2P systems' large scale and high dynamics have brought a great challenge to data availability and accessing performance. Redundancy techniques are used to solve these problems. However, in structured P2P systems, due to the consistent hash, the overlay network could not match underlying physical network well...
We present 3nuts, a self-stabilizing peer-to-peer (p2p) network supporting range queries and adapting the overlay structure to the underlying physical network. 3nuts combines concepts of structured and unstructured p2p networks to over-come their individual shortcomings while keeping their strengths. This is achieved by combining self maintaining random networks for robustness, a search tree to allow...
Many different accounting systems currently exist for the European Grids and for other distributed systems in general. Even though they often share equivalent technical approaches, concerning accounting metrics and batch-system log access, there are lots of different data formats, accounting-database layouts, communication- and implementation details that hinder a consistent and comprehensive accounting...
In this paper, we proposes a multi-gateway nodes data collected routing algorithm based on load balancing(TBLB algorithm) and energy balance, robustness, data forwarding and anti-interference etc, which is multi-gateway nodes-based in wireless sensor network. This algorithm fully takes into account the problem of excessive power consumption when it serves as the data forwarding task, to reduce node...
Network failures often cause service interruptions as well as packet losses. To mitigate the impact of failures, many IP fast local recovery schemes have been proposed to reroute traffic in the event of failure in past literatures. However, the rerouted traffic may cause congestion or overload on pre-computed backup routes if the link capacity on those backup routes is not considered in recovery schemes...
When managed properly, the ring networks are uniquely suited to deliver a large amount of bandwidth in a reliable and inexpensive way. An optimal load balancing is very important, because it increases the system capacity and improves the overall ring performance. An important optimisation problem in this context is the Weighted Ring Arc Loading Problem (WRALP). It consists of the design, in a communication...
The Industrial Ethernet is promising for the implementation of a Cloud Computing based control system. However, numerous standard organizations and vendors have developed various Industrial Ethernets to satisfy the real-time requirements of field devices. This paper presents a real-time reconfigurable protocol stack to cope with this challenge, by introducing the architecture with a core of dynamic...
Various wireless networks have emerged to meet the growing demand for broadband wireless services. However, wireless services are fundamentally limited in bandwidth because of the scarcity of RF spectral resources. One alternative resource is the optical spectrum that can provide Gbps connectivity for little cost and no interference. This paper addresses the design of joint free space optical (FSO)...
Mobile Ad hoc Networks (MANET) are wireless networks consisting of a collection of mobile nodes with no fixed infrastructure. Due to their decentralized, self-configuring and dynamic nature, MANETs offer many advantages and are easy to install. But with this dynamic topology, mobile ad hoc networks have some challenges like the design of an efficient routing protocol. An example for this challenge...
This Paper deeply analyzes and studies the existing problems in the any cast communication models in an IPv6 network and proposes a k-Any cast routing schemes for IPv6 network which are fault tolerance, load balancing, security, and improvement in system performance. In addition, this paper proposes a concrete scheme on how to implement this k-Any cast communication model in an IPv6 network which...
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