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Software Defined Networking (SDN) has emerged to be an ultimate solution for the management of data centers. The separation of control plane from the data plane has made it possible to manage physical and virtual networks through the SDN controller. This paper presents a novel Dynamic Multipath Scheduling Protocol (DMSP) for effective scheduling of packets on SDN virtual links, thus achieving full...
The standard routing protocols are used to find an optimal path between two given endpoints. Nowadays, the solution of multipath routing becomes fundamental requirement to improve the overall throughput of networks. On the other hand, due to the dynamic and high volume of traffic, it is also more challenging to control the congestion in an efficient way within the networks. Recently, Software-Defined...
In datacenter networks, big scale, high performance and fault-tolerance, low-cost, and graceful expandability are pursued features. Recently, random regular networks, as the Jellyfish, have been proposed for satisfying these stringent requirements. However, their completely unstructured design entails several drawbacks. As a related alternative, in this paper we propose Random Folded Clos (RFC) networks...
Future SoCs are expected to have irregular on-chip topologies, either at design time due to heterogeneity in the size of core/accelerator tiles, or at runtime due to link/node failures or power-gating of network elements such as routers/router datapaths. A key challenge with irregular topologies is that of routing deadlocks (cyclic dependence between buffers), since conventional XY or turn-model based...
As VLSI technology scales to deep sub-micron, design for interconnections becomes increasingly challenging. The traditional bus routing follows a sequential bit-by-bit order, and few works explicitly target inter-bit regularity for signal groups via multi-layer topology selection. To overcome these limitations, we present Streak, an efficient framework that combines topology generation and wire synthesis...
Software Defined Networking (SDN) is a new approach in network architecture which decouples the control plane from data plane. The SDN controller has the global view of the underlying network, enabling enormous research works in the area of traffic engineering (TE). Existing congestion control solutions for SDN TE are either reactive or proactive in nature. In reactive schemes when congestion event...
Vehicular Ad Hoc Networks (VANETs) is an essential and emerging area of research in the field of Ad Hoc Networks. The main objective of deploying VANET is to improve the road safety and reduce the number of accidents. In VANET, routing is a difficult task because of the high mobility of nodes, which causes rapid changes of topology and to deliver a packet within a minimum period of time. Existing...
OpenStack has been widely acknowledged to be one of the most important open source cloud platforms. In order to perform experimentally driven research in the area of cloud and cloud networking, there is however a big gap, because most researchers do not have access to a large cloud deployment and cannot change networking or compute infrastructure in order to test their algorithms and protocols on...
In Skip Graph, a structured overlay, each node constructs its routing table by choosing connected nodes based on its membership vector. However, membership vectors are determined randomly; therefore, nodes do not always form an ideal topology. This can cause the route length to be long. Therefore, we propose Self-Refining Skip Graph, a structured overlay where each node refines its routing table toward...
Wireless Sensor Networks (WSN), driven from multiple engineering disciplines, provide a communication infrastructure for various types of critical and innovative applications. These kinds of miniaturised, autonomous, versatile, lightweighted and autoconfigurable networks have inherent issues that are considered as a very interesting research area. Even if the use of WSN is diverse it seems that they...
Several data center applications such as Hadoop and OpenStack VM provisioning utilize group communication (one-to-many or many-to-many transfers). Since these applications require reliable and stable delivery, they rely on TCP for all group communications. Even though multicast lends itself naturally to these group communication patterns, it has remained largely under-deployed in the Internet owing...
It is critical to provide sustained data throughput in edge computing, where several sensor devices generate information that needs to be fused and used for decision making in e.g., disaster incident scenes. To this end, we compare the effectiveness of two protocols, Hybrid Wireless Mesh Protocol (HWMP) and Greedy Perimeter Stateless Routing (GPSR), based upon their ability to stream data in a mesh...
In recent years, software-defined networking (SDN), which performs centralized network management with software, has attracted much attention. In SDN, the data plane is separated from the control plane. Network administrators can dynamically change the setting of the data plane and control routing on the control plane through a control protocol such as OpenFlow. Although packets are transmitted based...
One of the main goals of the network was to obtain a perfect balance between the network optimization and the central intelligence. However the service providers desired a more simplified and optimized IP network, with an increased scalability. With this aim in mind the concept of Segment Routing was created.
In this paper we discuss about 3 general issues on mesh topology in “networks on chip” (NOC): Utilizing multi-level mesh for delay reduction, using route by considering the mesh topology concept, and finally an optimal model of mesh topology named “multi-level mesh topology” which is defined based on 5-layer network model is suggested. In multi-level mesh topology we can see that this architecture...
In Data center network, with the rapid development of network applications, how to balance the network load has become the focus of everyone's attention. It is required to fully utilize the resources such as bandwidth to provide high bandwidth for various cloud computing service. In this paper, we propose a dynamic load balancing routing mechanism based on disturbance under SDN. The proposed scheme...
In this paper, we propose topology based adaptive hybrid multicast routing (THMR) mechanism in mobile ad hoc networks. With the help of technique derived from Computational Intelligence (CI) discipline, Topology Change Rate (TCR) is predicted based on link behavior and node mobility for both proactive and reactive routing region in MANETs. We design a Reinforcement Learning (LR) based Q-Learning (QL)...
Zigbee is a wireless networking standard which is broadly used in applications such as remote control and sensor applications. They are suited for operation in coarse radio environments and in isolated locations. In Zigbee based wireless networks, various routing protocols such as reactive routing protocols and Zigbee Tree Routing (ZTR) protocol were initially proposed. Among them, ZTR is widely used,...
This paper comes up with a SDN based On-Demand Routing Protocol, SVAO, which separates data forwarding layer and network control layer, as in SDN, to enhance the data transmission efficiency within VANETs. The Roadside Service Unit plays the role of Local Controller and is in charge of selecting vehicles to forward packet within a road segment. All the vehicles state in the road. Correspondingly,...
Spontaneous progress in the field of wireless sensor networks (WSN) have led to development of various protocols for reliable communication and increasing longevity of the network. While designing the protocols for WSNs, designers come across the issues like limited energy per node, limited bandwidth for communication, security, minimum communication and computational cost. This paper focuses on energy...
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