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There has been rapid growth in the area of wireless communication by Wireless Mesh Networks (WMNs) where routing metric is the key metric to find the optimized route in WMNs. For obtaining optimal performance, integrating multiple performance metrics into a routing protocol is effective, as single metric will not be able to satisfy the thorough requirement of WMNs. This paper has proposed a new routing...
Since the heterogeneous Internet Service Provider (ISP) router policies prevent the quality-of-service (QoS) multimedia applications which require IP layer multicasting from being widely deployed on the Internet, the mechanism of implementing such applications by application layer broadcasting through organizing the multicast group in a peer-to-peer overlay network is proposed. In this paper, we study...
Recent research has shown that the integration of a custom-silicon network-on-chip (NoC) into an FPGA fabric can significantly help on-chip communication bandwidth. Although not appropriate for all communication, FPGA hard NoCs provide a scalable infrastructure that will increase in importance as FPGA sizes increase. To date, most FPGA hard NoC implementation has focused on packet-switched routing...
Many important applications demand large amounts of on-chip memory both to fully utilize an FPGA's computational capacity and to minimize energy-consuming off-chip memory accesses, leading some recent commercial FPGAs to add higher-capacity on-chip block RAMs (BRAMs). While memory is becoming more important to FPGA designs, SRAM scaling is becoming more difficult because of increasing device variation...
P2P is an essential technology to solve the gap between server's capability and growing demand of client. In P2P system, there is a natural imbalance. Thus, Load balance is one of the main research directions. Better balance performance would lead to higher bandwidth, higher resource utilization, and better network stability. Churn is a normal phenomenon in P2P network, which often brings some awful...
In today's super system scenario the computation effectiveness is obtained from multiple processors which are connected to themselves and to their memory modules through multistage interconnection networks (MIN) So performability of these multistage interconnection networks (MIN) Plays vital role in effective and efficient processing of these super systems. In this paper performance of these MIN namely...
Degraded provisioning provides an effective solution to flexibly allocate resources in various dimensions to reduce blocking for differentiated demands when network congestion occurs. In this work, we investigate the novel problem of online degraded provisioning in service-differentiated multi-layer networks with optical elasticity. Quality of Service (QoS) is assured by service-holding-time prolongation...
With the increasing popularity of cloud computing, the huge amount of energy consumed by data centers has gained much attention. Current proposals address the energy efficiency problem by two major methods: optimizing the allocation of physical servers and network elements (routers or switches). In order to improve resource utilization and minimize the energy consumption, the former method focuses...
Load-balancing and network optimization in SDN networks require efficient flow splitting during the path computation phase. The way flow splitting is typically implemented in switches is to map the output of an hash function computed on the headers of incoming flows to the content stored in a Ternary Content Addressable Memory (TCAM), a very efficient but scarce resource. Although a large TCAM budget...
Traffic engineering (TE) has long been used by network providers to reduce network congestion and improve resource utilization. Due to its significance, several traffic engineering algorithms have been proposed in literature. However, most of these algorithms optimize maximum link utilization (MLU) in network, and/or assume that network has the capability to route demands on arbitrary paths. Optimizing...
As more and more data-intensive applications have been moved to the cloud, the cloud network has become the new performance bottleneck for cloud applications. To boost application performance, the concept of coflow has been proposed to bring application-awareness into the cloud network. A coflow consists of many individual data flows, and a coflow is completed only when all its component flows are...
In recent years, elastic optical networks have emerged as a solution for dealing with the diversity of the bandwidth demands of network applications. The use of only two multiplexing dimensions has limited the network capacity. To ameliorate this problem, a third dimension has been added in space division multiplexing(SDM). As transmission rates increase so does the need for protection against network...
Spectrum aggregation provides a promising approach to improve the network capacity for Cognitive Radio Ad-Hoc Networks (CRAHNs). Resource allocation for spectrum aggregation-based CRAHNs has become one of the main issues. In this paper, we propose a cross-layer optimization for CRAHNs with the spectrum aggregation. The main objective of our paper is to maximize the network throughput under the network...
Recently, there are significant advances in the areas of networking, caching and computing. Nevertheless, these three important areas have traditionally been addressed separately in the existing research. In this paper, we present a novel framework that integrates networking, caching and computing in a systematic way and enables dynamic orchestration of these three resources to improve the end-to-end...
This paper presents a comparison of throughputand end-to-end latency of synchronous and asynchronous heterogeneousNoC under uniform and exponential traffic conditionsusing different parameters. The parameters we have chosen areno. of cores, load (traffic) and no. of VCs of a router. Further, sinkbandwidth analysis of synchronous and asynchronous NoC underuniform traffic was studied and compared. The...
Software-Defined Network (SDN) allows a centralized controller to globally plan packets forwarding according to the operator's objectives. It may require more forwarding rules, and multi-path routing which is allowed in SDN to improve network utilization and throughput means more forwarding rules. However, the forwarding table in TCAM-based SDN switch is an important but limited resource. With this...
Vehicular networks are increasingly gaining popularity among researchers for their potential to enable diverse applications associated with road traffic safety, infotainment and road transportation management. In this paper we present a QoS-based routing protocol named VanetQoS which purpose is to accommodate real-time and multimedia applications with specific quality of service (QoS) requirements...
In this paper, we propose a Fragmentation-based Multipath Routing (FMR) model for Software Defined Networks (SDNs) to enable attack-resilient data transfer. With the use of erasure encoding to fragment a message, the fragments are routed along multiple paths such that no intermediate node receives enough fragments required for message decoding. This ensures that, any intruder on a compromised node...
Flexible spectrum ROADMs facilitate networks to support channels operating at heterogeneous line rates by allocating spectral resources in a dynamic and flexible manner leading to better Spectral Efficiency. In a realistic network, traffic scenario is very dynamic in nature leading to continuous tear down of existing demands and set up of new demands. This dynamic tear down and set up process leads...
We investigate the problem of dynamically routing and spectrum assignment for advance reservation anycast requests using a novel algorithm called Delayed Spectrum Allocation (DSA). We evaluate the flexible window STSD (Demands that specify start-time and duration) to further improve request blocking. Through extensive simulation results we show that anycast with flexible STSD using DSA approach can...
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