دانلود رایگان مقاله لاتین انرژی ذخیره ویدئو در شبکه نوری از سایت الزویر
عنوان فارسی مقاله:
آیا ذخیره ویدئو باعث بهبود انرژی در شبکه های نوری هسته آینده شود؟
عنوان انگلیسی مقاله:
?Will video caching remain energy efficient in future core optical networks
سال انتشار : 2017
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مقدمه انگلیسی مقاله:
1. Introduction
The number of Internet users has grown to over 2.8 billion users [1] and Internet traffic is expected to exceed 1 Zettabytes (1 billion Terabytes) in 2016 with an annual growth rate of about 21% [2]. In a few years, video content is estimated to account for 80– 90% of the total IP traffic, and on average one million minutes of video content is projected to cross the Internet every second [3]. Energy consumption is predicted to become the new Internet bottleneck of communication networks. Data centers which mange and provide content are a critical part of the Internet and consume significant energy – up to 70% of the total transmission energy [4]. These alarming figures depict the increasing energy consumption of the Information and Communication Technology (ICT) industry, thus implying increasing associated carbon dioxide (CO2) emissions. ICT's CO2 emissions are expected to increase from 0.5 billion tons in 2002 to 1.4 billion tons in 2020 [4], exceeding 3% of global emissions [5]. The possible environmental impacts of the Internet expansion have boosted a global movement towards reducing the CO2 footprint of ICT. One successful strategy in video service power reduction is content caching. The main objective of caching is to reduce traffic on the communication path between the data center and users by storing videos closer to the users. Due to their limited storage capacity, caches contain a small amount of the whole video library. As a result, it is important that they maintain the most popular content to maximize traffic served from caches. Future optical network technologies are overviewed in [6,, 7]. It is likely that future networks will become all optical with intelligent ultra long-haul optical transmission. Future optical networks are expected to implement hardware improvements in laser, transmitter/receiver, amplification and multiplexing technologies [6,7]. The main focus of these reviews and similar studies is the potential increase in network speed and capacity. However, there is still a need to assess the improvements in network performance considering expected growth in carried traffic. Prior studies have proposed improvements to current optical networks that are expected to reduce power consumption when implemented. The authors of [8] proposed a server provisioning strategy for a Video-on-Demand (VoD) service that turns on/off servers with respect to traffic load. This strategy uses a proactive online algorithm to calculate the predicted number of requests at each time. The number of requests is used to compute expected traffic. With more focus on Wave Division Multiplexing (WDM), the proposed models in [9–11] evaluate the energy consumption of optical core networks considering switch on/off techniques and optical bypass. In [12] the power consumption of an IP over WDM network is minimized by optimizing the cache sizes deployed at network nodes. The work however does not identify whether
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کلمات کلیدی:
PDF]Dimensioning the Future Pan-European Optical Network With Energy ...citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.721.6002&rep=rep1...by A Tzanakaki - Cited by 42 - Related articlesIndex Terms—Energy efficiency; Optical fiber networks;. WDM networks. ... power share of the core network segment will grow rapidly. This will cause severe .... network approach, where data remain in the optical domain while traversing the ...[PDF]Energy Efficiency in Telecom Optical Networks - ITEM NTNUhttps://www.item.ntnu.no/_.../energy_efficiency_in_telecom_optical_networks.pdfby Y Zhang - 2010 - Cited by 347 - Related articlesupcoming years. Index Terms—Energy, efficiency, telecom, optical, networks. ... consuming a lower amount of energy in future [3], [9]. Among the various network .... consumption minimization in core networks, while Section V provides the ...... stay the same, power consumption can be brought down after power control.[PDF]Green Networks: Energy Efficient Design for Optical Networkswww.ee.columbia.edu/~bbathula/WOCN-BaJa-09.pdfby BG Bathula - Cited by 57 - Related articlesJun 19, 2009 - Abstract—In this paper we discuss new energy efficient paradigms for optical ... for present and future Internet applications. These networks ... minimize the energy consumption of the optical core network. These wavelength .... optical core networks, these routers remain in the ON state indefinitely and.[PDF]Towards Energy-Efficient Photonic Interconnects - Northwestern ...users.eecs.northwestern.edu/~hardav/papers/2015-SPIEOIXV-LaserGating-Demir.pdfby Y Demir - Cited by 4 - Related articlesenergy-efficient on-chip and off-chip communication in many-core processors. ... efficiency, and photonic interconnects often remain underutilized both in scientific ..... it in the immediate future, if the energy consumed by keeping the laser on is .... using McPAT 35, and the power consumption of the optical networks using the ...[PDF]Enabling a Bufferless Core Optical Network Using Edge-to-Edge ...www.cc.gatech.edu/~dovrolis/Papers/final-arun-buffers-FEC.pdfby A Vishwanath - Cited by 3 - Related articlesit remains a formidable challenge to build even a few packets of integrated all-optical buffers. In this context, we envision a bufferless (or near-zero buffer) core optical network and make ... A. Vishwanath is with the Centre for Energy-Efficient Telecommunications,. University of ... optical bufferless core networks in the future.[PDF]Energy Saving vs. Performance: Trade-offs in Optical Networks - DiVAhttps://www.diva-portal.org/smash/get/diva2:925607/FULLTEXT01.pdfby P WIATR - 2016 - Related articlesIn optical core networks, one way to decrease the energy consumption is to minimize the number of used ... The thesis also investigates the impact that sleep-based energy-efficient ..... have remained a dream for me. ...... Chapter 7 presents concluding remarks and describes some possible future topics related to th
