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With the explosive growth of applications and application traffic, data centers networks are challenged in network utilization and network performance, which is crucial to guarantee the efficiency of computing and storage resources of data center servers. Recently, software defined network has been exploited to manage the network resource in a center controller, which provides opportunities to optimize...
Nowadays energy efficiency has been one of the most urgent issues for Data center networks. Flow scheduling methods based on exclusive routing have been used to minimize the network energy while meeting the network performances, such as network throughput, and flow deadline. However these energy efficient exclusive routings only maximize the utilization of ports, which may leave switches underutilized...
High-performance network-on-chip routers usually prefer a large number of Virtual Channels (VC) for high throughput. However, the growth in VC count results in increased arbitration complexity and reduced router clock frequency. In this paper, we propose a novel high-frequency many-input arbiter design for many-VC routers. It is based on the speculation on short and thus fast arbitrations in case...
A good clustering algorithm can provide the basis for forming a good network topology and target location, improve routing efficiency and greatly reduce energy consumption. For the lack of GAF algorithm, an improved algorithm is putted forward. First of all, the monitored area is divided into many sections according to the intersecting circle structure. Then the nodes which meet specific criteria...
Mobile ad hoc network is a distributed wireless communication network, and energy issue has become a hot topic.CMMBCR considers the latest routing strategy about energy issue in ad hoc networks according to different situation , AOMDV multi-path routing protocol is improved based on the energy saving strategy CMMBCR.The improved protocol sets three node status and the nodes that do not work for a...
The dynamic current variation property of XC2V1000, a kind of SRAM-based Field Programmable Gate Arrays(FPGA), is presented by heavy ion irradiation. The relationship between dynamic current and the quantity of SEUs (Single Event Upsets) in configuration memory of FPGA is derived from the experimental data, and probable causation of the phenomenon is analyzed with the help of irradiation and fault...
The self-organization is one of the important issues in wireless sensor networks(WSN). Based on the MAC address, a new self-organization algorithm called C-Trace is proposed for environment sensing networks. Combing with the data collection and the network topology, this method produces a protocol structure which focus on the MAC address. Simulation shows that C-Trace has comparable short address...
Technology scaling has led to the integration of many cores into a single chip. As a result, on-chip interconnection networks start to play a more and more important role in determining the performance and power of the entire chip. Packet-switched network-on-chip (NoC) has provided a scalable solution to the communications for tiled multi-core processors. However the virtual-channel (VC) buffers in...
An energy-efficient data gathering protocol called E2DGP that takes advantage of spatial and temporal correlation of sampling data for WSNs is proposed in this paper. E2DGP includes a clustering method of balancing energy consumption, a data prediction transmission strategy and an energy-aware multihop routing algorithm. In clustering process phase, the initial probability of node for cluster head...
An energy-balancing, cross-layer data gathering protocol (EB-CLDG) for wireless sensor networks (WSNs) is presented in this paper. EB-CLDG is proposed for monitoring and periodic reporting applications and the network is organized into concentric tiers around the sink. An energy-balancing clustering algorithm is employed to mitigate the ldquohot spotrdquo problem. Thus the number of clusters closer...
Interconnection plays an important role in performance and power of CMP designs using deep sub-micron technology. The network-on-chip (NoCs) has been proposed as a scalable and high-bandwidth fabric for interconnect design. The advent of the 3D technology has provided further opportunity to reduce on-chip communication delay. However, the design of the 3D NoC topologies has important distinctions...
For mobile ad-hoc wireless network, the route protocol is very important. This paper proposes a modified CBRP scheme based on the cloud model to improve the performance. And some experiments are conducted, the results show that the ad-hoc network will be lower average end-to-end delay and higher packet delivery ratio with the proposed scheme.
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