scholarly journals Innovative Techniques for Power Consumption Saving in Telecommunication Networks

2014 ◽  
Vol 2014 ◽  
pp. 1-2
Author(s):  
Vincenzo Eramo ◽  
Xavier Hesselbach-Serra ◽  
Yan Luo
Keyword(s):  
Power Consumption ◽  
Telecommunication Networks ◽  
Innovative Techniques ◽  
Consumption Saving

scholarly journals Ultracompact and low-power-consumption silicon thermo-optic switch for high-speed data

Nanophotonics ◽  
2020 ◽  
Vol 10 (2) ◽  
pp. 937-945
Author(s):  
Ruihuan Zhang ◽  
Yu He ◽  
Yong Zhang ◽  
Shaohua An ◽  
Qingming Zhu ◽  
...  
Keyword(s):  
Power Consumption ◽  
Low Power ◽  
High Speed ◽  
High Performance ◽  
Pulse Amplitude ◽  
Telecommunication Networks ◽  
Low Power Consumption ◽  
Power Efficient ◽  
High Speed Data ◽  
On Chip

AbstractUltracompact and low-power-consumption optical switches are desired for high-performance telecommunication networks and data centers. Here, we demonstrate an on-chip power-efficient 2 × 2 thermo-optic switch unit by using a suspended photonic crystal nanobeam structure. A submilliwatt switching power of 0.15 mW is obtained with a tuning efficiency of 7.71 nm/mW in a compact footprint of 60 μm × 16 μm. The bandwidth of the switch is properly designed for a four-level pulse amplitude modulation signal with a 124 Gb/s raw data rate. To the best of our knowledge, the proposed switch is the most power-efficient resonator-based thermo-optic switch unit with the highest tuning efficiency and data ever reported.

Stay cool [power consumption saving]

2006 ◽  
Vol 1 (5) ◽  
pp. 42-46
Author(s):  
P. Klapproth ◽  
F. Pessolano
Keyword(s):  
Power Consumption ◽  
Cool Power ◽  
Consumption Saving

scholarly journals Power consumption in telecommunication networks: overview and reduction strategies

2011 ◽  
Vol 49 (6) ◽  
pp. 62-69 ◽  
Author(s):  
Willem Vereecken ◽  
Ward Heddeghem ◽  
Margot Deruyck ◽  
Bart Puype ◽  
Bart Lannoo ◽  
...  
Keyword(s):  
Power Consumption ◽  
Telecommunication Networks ◽  
Reduction Strategies

Evaluating Factors Motivate Users on Green IT Readiness (Part 2)

2017 ◽  
Vol 8 (1) ◽  
pp. 23-35 ◽  
Author(s):  
Yas A. Alsultanny ◽  
Fatma M. Alnassar
Keyword(s):  
Data Analysis ◽  
Power Consumption ◽  
Information And Communications Technology ◽  
Communications Technology ◽  
Policy Governance ◽  
Green It ◽  
Factors Affecting ◽  
Consumption Saving

Due to the advancement of information and communications technology, most of the businesses and services have transformed into an e-businesses and e-services. The organizations are facing a great deal of pressure from regulators to move toward green IT. The aim of this article is to evaluate the factors affecting on green IT readiness from the perspective of IT users, a questionnaire designed for this purpose. The questionnaire divided into two parts, the first part for demographics information, and the second part contains 34 statements divided into 6 factors. There are 460 respondents to the questionnaire. The results of the data analysis showed that the factors, technology and attitude have an agreed degree of agreement, while the practice, policy, governance, and green IT readiness have a neutral degree of agreement. The governance factor has the highest effect on green IT readiness. The article recommends the ministries of electricity must be increasing the awareness for green IT as part of their awareness for power consumption saving.

scholarly journals DRAC: a delta recurrent neural network-based arithmetic coding algorithm for edge computing

2021 ◽  
Author(s):  
Bowei Shan ◽  
Yong Fang
Keyword(s):  
Neural Network ◽  
Power Consumption ◽  
Recurrent Neural Network ◽  
State Of The Art ◽  
The State ◽  
Edge Computing ◽  
Experimental Results ◽  
Arithmetic Coding ◽  
Speedup Ratio ◽  
Consumption Saving

AbstractThis paper develops an arithmetic coding algorithm based on delta recurrent neural network for edge computing devices called DRAC. Our algorithm is implemented on a Xilinx Zynq 7000 Soc board. We evaluate DRAC with four datasets and compare it with the state-of-the-art compressor DeepZip. The experimental results show that DRAC outperforms DeepZip and achieves 5X speedup ratio and 20X power consumption saving.

scholarly journals Improving Energy Efficiency in the Supermarket by Retrofitting Low E Glass Doors for Open Refrigerated

2020 ◽  
Vol 20 (1) ◽  
pp. 11-17
Author(s):  
Piyanut Saengsikhiao ◽  
Juntakan Taweekun ◽  
Kittinan Maliwan ◽  
Somchai Sae-ung ◽  
Thanansak Theppaya
Keyword(s):  
Energy Efficiency ◽  
Power Consumption ◽  
Customer Behavior ◽  
Cooling Load ◽  
Refrigeration System ◽  
Data Logger ◽  
Night Time ◽  
Medium Temperature ◽  
Central Thailand ◽  
Consumption Saving

This research presents the improving energy efficiency by retrofitting doors for open refrigerated in central Thailand supermarkets that open in the daytime (06.00 am - 6:00 pm) and close in night-time (00.00 am – 6:00 am). The Materials and Methods were open refrigerated 15 cabinet and retrofitting doors for open refrigerated that 41 frames, 82 doors in medium temperature refrigeration system and measure power consumption kW, kWh by power meter data logger for analysis and summarize. The power consumption saving average per 7 days for retrofitting doors was 576 kWh/day, 39.67% that daytime 418 kWh/day, 41.93%, and night-time 116 kWh/day, 33.24%. Besides, the energy of day time more than night time because 1) The time of opening store is longer than closing store 2) In the night time, the refrigerated will close by plastic curtain 3) The request cooling load of day time is longer than day time 4) The sale area/ambient temperature of night time more than day time but the humidity was contrasted. Before retrofitting doors, the maximum and minimum of power consumption was 83.25 kw/hour and 44.73 kw/hour, respectively. Also, the power consumption swing at 38.52 kw/hour, 46.72%, and the maximum and minimum of power consumption after retrofitting doors was 33.15 kw/hour and 30.19 kw/hour, respectively. The power consumption swing at 2.96 kw/hour, 8.93%. In addition, the power consumption swing will after be retrofitting doors will less than before retrofitting doors by 1) The average cooling load will be the same as bolt conditions 2) The request cooling load of doors refrigerated will less than by product load, the swing of sale area temperature and humidity, customer behavior that effect power condition will have the low running operation. This research's investment was 21,694 €, while the payback period of this research was 14 months. Besides, within 1.1 years, that energy saving was 16,020 kWh/Month or 1,542 €/Month, 16,020 kWh/month or 192,220 kWh/Year or 18,503 €/Year.

Evaluating Factors Motivate Users on Green IT Readiness (Part 2)

2019 ◽  
pp. 1233-1243
Author(s):  
Yas A. Alsultanny ◽  
Fatma M. Alnassar
Keyword(s):  
Data Analysis ◽  
Power Consumption ◽  
Information And Communications Technology ◽  
Communications Technology ◽  
Policy Governance ◽  
Green It ◽  
Factors Affecting ◽  
Consumption Saving

Due to the advancement of information and communications technology, most of the businesses and services have transformed into an e-businesses and e-services. The organizations are facing a great deal of pressure from regulators to move toward green IT. The aim of this article is to evaluate the factors affecting on green IT readiness from the perspective of IT users, a questionnaire designed for this purpose. The questionnaire divided into two parts, the first part for demographics information, and the second part contains 34 statements divided into 6 factors. There are 460 respondents to the questionnaire. The results of the data analysis showed that the factors, technology and attitude have an agreed degree of agreement, while the practice, policy, governance, and green IT readiness have a neutral degree of agreement. The governance factor has the highest effect on green IT readiness. The article recommends the ministries of electricity must be increasing the awareness for green IT as part of their awareness for power consumption saving.

scholarly journals State of the Art and Perspectives on Silicon Photonic Switches

Micromachines ◽  
2019 ◽  
Vol 10 (1) ◽  
pp. 51 ◽  
Author(s):  
Xin Tu ◽  
Chaolong Song ◽  
Tianye Huang ◽  
Zhenmin Chen ◽  
Hongyan Fu
Keyword(s):  
Power Consumption ◽  
Large Scale ◽  
State Of The Art ◽  
Micro Electro Mechanical System ◽  
Telecommunication Networks ◽  
Photonic Switching ◽  
Waveguide Coupler ◽  
Large Bandwidth ◽  
Photonic Switches ◽  
Silicon Photonic

In the last decade, silicon photonic switches are increasingly believed to be potential candidates for replacing the electrical switches in the applications of telecommunication networks, data center and high-throughput computing, due to their low power consumption (Picojoules per bit), large bandwidth (Terabits per second) and high-level integration (Square millimeters per port). This review paper focuses on the state of the art and our perspectives on silicon photonic switching technologies. It starts with a review of three types of fundamental switch engines, i.e., Mach-Zehnder interferometer, micro-ring resonator and micro-electro-mechanical-system actuated waveguide coupler. The working mechanisms are introduced and the key specifications such as insertion loss, crosstalk, switching time, footprint and power consumption are evaluated. Then it is followed by the discussion on the prototype of large-scale silicon photonic fabrics, which are based on the configuration of above-mentioned switch engines. In addition, the key technologies, such as topological architecture, passive components and optoelectronic packaging, to improve the overall performance are summarized. Finally, the critical challenges that might hamper the silicon photonic switching technologies transferring from proof-of-concept in lab to commercialization are also discussed.

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