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Software Defined Networking (SDN) is an emerging networking paradigm which intends to merge networks into the age of the cloud, providing fine-grained control, simplified configurations, unprecedented flexibility and seamless scalability. However, due to the large set of unresolved challenges as well as the deployment cost, network evolution to fully SDN systems will take a long time. In fact, SDN...
Mobile networks are undergoing fast evolution from the fourth-generation (4G)/Long Term Evolution (LTE) to the fifth generation (5G) so as to keep pace with the ever-increasing data traffic, mainly fueled by large-object delivery, such as video streams. To cope with the traffic growth, next evolution will integrate functionalities of content distribution networks (CDNs) in various manners, from in-network...
Clos networks provide the theoretically optimal solution to build high-radix switches. This paper proposes a novel asynchronous routing algorithm for general asynchronous three-stage Clos networks. As the major sub-algorithm controlling the first two stages, the asynchronous dispatching algorithm outperforms the synchronous concurrent round-robin dispatching algorithm in behaviour level simulations...
Due to shrinking transistor geometries, on-chip circuits are becoming vulnerable to errors, but at the same time on-chip networks are required to provide reliable services over unreliable physical interconnects. A connection oriented stochastic routing (COSR) algorithm has been used on one NoC platform that provides excellent fault-tolerance and dynamic reconfiguration capability. A probability model...
Load balance in P2P storage system will affect availability greatly. Two aspects should be considered in keeping balance: balance in peer space and balance in data replica among peers. This paper focuses on achieving balance in peer space. Peers are categorized by periodicity of availability, and long term peers are organized into virtual balanced binary tree which is improved from P-Grid. Character...
Secure joining process has become the most challenging problem in P2P system. This paper presents a joining process with security in P-Grid system including authentication of entry peer and new peer. The core idea to ensure security authentication is to use multiple consultant peers and a quorum-based method to make a decision. From preliminary analysis of the process, high successful probability...
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