Recent advances in computing and sensing techniques lead to the generation of tons of data that needs to be processed in distributed computing infrastructures (e.g., datacenters). In this paper, we focus on applying o...
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ISBN:
(纸本)9781450362788
Recent advances in computing and sensing techniques lead to the generation of tons of data that needs to be processed in distributed computing infrastructures (e.g., datacenters). In this paper, we focus on applying optical networking techniques for supporting the big data transfer between datacenters. In particular, we propose a green optical networking scheme, namely predictive and incremental grooming (PI-grooming), which makes the traffic grooming decision based on the existing flow assignment, the current traffic demands, and the expected future traffic demands to achieve energy-efficient communication. We conduct large-scale simulations to evaluate the performance of the proposed PI-grooming scheme. The results show that PI-grooming can save energy by up to 25% compared to existing baseline solutions.
The purpose of this research is to investigate the viability of utilising Wi-Fi 802.11a for the control of household appliances and to evaluate its performance in comparison to that of WiMAX. The sample size is two, a...
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The rapidly evolving landscape of smart technology is fundamentally transforming home automation, increasingly weaving it into the fabric of our everyday lives. As we strive for more intuitive and seamless interaction...
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This paper present a flow control based Multi-rate Congestion control Mechanism in a heterogeneous network. Multicasting is a promising approach for mass distribution of streaming media. In single rate multicast (SR-M...
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advances in storage, processing, and networking hardware are changing the structure of distributed applications. RDMA networks provide multiple communication mechanisms that enable novel hybrid protocols specialized t...
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ISBN:
(纸本)9781728177441
advances in storage, processing, and networking hardware are changing the structure of distributed applications. RDMA networks provide multiple communication mechanisms that enable novel hybrid protocols specialized to different data transfer requirements. In this paper, we present a distributed communication scheme that separates control and data communication channels directly at the RNIC rather than the application level. We develop a new communication artifact, a remote random access buffer, to efficiently implement this separation. Data messages are sent silently to the receiver, which is informed of the location of the data by a subsequent control message. Experiments on an RDMA-enabled cluster with micro benchmarks and two distributed applications validate the performance benefits of our approach.
In this paper, we present an architecture for security and access control in Intelligent Transportation Systems. The applicability of the proposed architecture is demonstrated by developing a case-study based on CVIS ...
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ISBN:
(纸本)9780769533933
In this paper, we present an architecture for security and access control in Intelligent Transportation Systems. The applicability of the proposed architecture is demonstrated by developing a case-study based on CVIS (Collaborative Vehicle Infrastructure system). The proposed framework ensures maximum security for the communication infrastructure by implementing access control at both the data link layer and the network layer. The originality of the proposed framework consists on adoption of a universal security mechanism approach by using the Kerberos protocol for link layer authentication as well as for establishing IPSec security associations, which simplifies credential management and ensures reduced overhead. The operations of the EAP-Kerberos authentication method that we have designed and implemented for the purpose of this project is also presented.
Explosion of new technologies and increasing digital dependency of users has led to revolutionary changes in wireless networking. With this, mobility, seamless communication, security, and better service quality have ...
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ISBN:
(纸本)9789811086366;9789811086359
Explosion of new technologies and increasing digital dependency of users has led to revolutionary changes in wireless networking. With this, mobility, seamless communication, security, and better service quality have become the prime characteristics of new-generation networks (NGNs). However, achieving desired performance metrics and maintaining cost efficiency in power-constrained networking scenario is quite challenging which further degrade the end-user satisfaction. Apart from socioeconomic concern, ever-increasing power consumption is equally alarming from environmental perspective as well. This has called upon for the need of energy harvesting techniques to make NGNs greener. With the vision, the paper focused on power-constrained networking circumstances, limiting factors, and possible developments to enhance the energy usage in the forthcoming communication technologies.
Real-world deployments of low-cost, peer-to-peer Wireless Mesh Networks (WMNs) for communication in under-served settings are hampered by low throughput capacity and high complexity of network control. We present an a...
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ISBN:
(纸本)9781728133164
Real-world deployments of low-cost, peer-to-peer Wireless Mesh Networks (WMNs) for communication in under-served settings are hampered by low throughput capacity and high complexity of network control. We present an autonomic smart-agent based WMN design that organizes a node placement (NP) into dynamic network partitions to promote the WMNs' capacity through increased frequency diversity and advanced network control. Through a custom-built simulation framework that supports agent decision making under real concurrency settings, we show that our smart partitioning technique achieves fast convergence to stable partition sets, relying on local information, under extreme node churn conditions. The design is robust to the average WMN NP density and produces partitions isolated at the physical and link layers with the properties of bounded diameter and node degree, and elected partition control node.
The main objective of Load Frequency control (LFC) is to regulate the power output of the generator within an area in response to changes in system frequency and tie-line loading. LFC helps in maintaining the schedule...
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ISBN:
(纸本)9781467356930
The main objective of Load Frequency control (LFC) is to regulate the power output of the generator within an area in response to changes in system frequency and tie-line loading. LFC helps in maintaining the scheduled system frequency and tie-line power interchange with the other areas within the prescribed limits. The conventional controllers are slow and do not allow the controller designer to take into account possible changes in operating condition and non-linearities in the generator unit. When there is a variation in the load demand on a generating unit, there is a momenterial occurrence of unbalance between real power input and output. To compensate this power imbalance, an external Battery Energy Storage (BES) system is incorporated. Frequency oscillations due to large load disturbance can be effectively damped by fast acting energy storage devices such as Battery Energy Storage systems. The energy storage devices share the sudden changes in power requirement in the load. This paper presents the qualitative and quantitative comparison of conventional controllers and BES system in Load Frequency control (LFC) of a typical two area interconnected power system. The superiority of the performance of BES over conventional controllers is highlighted and discussed in this paper.
With how busy our lives are, it is easy to forget to pay a little attention to our thirsty indoor plants until it's too late and we are left with a crusty pile of yellow carcasses. People often show their careless...
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ISBN:
(纸本)9781538659069
With how busy our lives are, it is easy to forget to pay a little attention to our thirsty indoor plants until it's too late and we are left with a crusty pile of yellow carcasses. People often show their careless nature towards plants and forget to take care of them for their better growth so we decided to make a system which requires minimum attention. The proposed model is a compact, automated, Node MCU-powered plantation system to monitor and control the irrigation system. This system's memory is impeccable and never forgets to water your plant. Compared to other types of plantation system available the market, the proposed system is different in many ways as in it automatically determines the requirement of water for various plants. A neuron is used which takes feedback from the user about water requirement of the plant and depending on the feedback, it learns and adjusts the amount of water supplied to the plant next time. The default moisture level values of various commonly available plants are present in our database and can be initialised with the help of a mobile application. It minimises human intervention, that too at a very low cost.
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