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Green5G: Enhancing Capacity and Coverage in Device-to-Device Communication 被引量:2
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作者 Abdul Rehman Javed Rabia Abid +4 位作者 Bakhtawar Aslam Hafiza Ammara Khalid Mohammad Zubair Khan Omar H.Alhazmi Muhammad Rizwan 《Computers, Materials & Continua》 SCIE EI 2021年第5期1933-1950,共18页
With the popularity of green computing and the huge usage of networks,there is an acute need for expansion of the 5G network.5G is used where energy efficiency is the highest priority,and it can play a pinnacle role i... With the popularity of green computing and the huge usage of networks,there is an acute need for expansion of the 5G network.5G is used where energy efficiency is the highest priority,and it can play a pinnacle role in helping every industry to hit sustainability.While in the 5G network,conventional performance guides,such as network capacity and coverage are still major issues and need improvements.Device to Device communication(D2D)communication technology plays an important role to improve the capacity and coverage of 5G technology using different techniques.The issue of energy utilization in the IoT based system is a significant exploration center.Energy optimizationin D2D communication is an important point.We need to resolve this issue for increasing system performance.Green IoT speaks to the issue of lessening energy utilization of IoT gadgets which accomplishes a supportable climate for IoT systems.In this paper,we improve the capacity and coverage of 5G technology using Multiple Inputs Multiple Outputs(MU-MIMO).MUMIMO increases the capacity of 5G in D2D communication.We also present all the problems faced by 5G technology and proposed architecture to enhance system performance. 展开更多
关键词 green computing 5g energy efficiency resource optimization device to device communication multiple input multiple output
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Toward Optimal Cost-Energy Management Green Framework for Sustainable Future Wireless Networks
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作者 Mohammed H.Alsharif Abu Jahid +3 位作者 Mahmoud A.Albreem Peerapong Uthansakul Jamel Nebhen Khalid Yahya 《Computers, Materials & Continua》 SCIE EI 2021年第7期1321-1339,共19页
The design of green cellular networking according to the trafc arrivals has the capability to reduce the overall energy consumption to a cluster in a cost-effective way.The cell zooming approach has appealed much atte... The design of green cellular networking according to the trafc arrivals has the capability to reduce the overall energy consumption to a cluster in a cost-effective way.The cell zooming approach has appealed much attention that adaptively ofoads the BS load demands adjusting the transmit power based on the trafc intensity and green energy availability.Besides,the researchers are focused on implementing renewable energy resources,which are considered the most attractive practices in designing energy-efcient wireless networks over the long term in a cost-efcient way in the existing infrastructure.The utilization of available solar can be adapted to acquire cost-effective and reliable power supply to the BSs,especially that sunlight is free,available everywhere,and a good alternative energy option for the remote areas.Nevertheless,planning a photovoltaic scheme necessitates viability assessment to avoid poor power supply,particularly for BSs.Therefore,cellular operators need to consider both technical and economic factors before the implementation of solar-powered BSs.This paper proposed the usercentric cell zooming policy of solar-powered cellular base stations taking into account the optimal technical criteria obtained by the HOMER software tool.The results have shown that the proposed system can provide operational expenditure(OPEX)savings of up to 47%.In addition,the efcient allocation of resource blocks(RBs)under the cell zooming technique attain remarkable energy-saving performance yielding up to 27%. 展开更多
关键词 Wireless networks beyond 5g green communications sustainability OPEX communication systems
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5-HT_(1A)受体蛋白在PC12细胞膜转运的动态变化
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作者 金艳燕 吕琼 +4 位作者 闫竹青 高尔静 赵春礼 张进禄 徐志卿 《基础医学与临床》 CSCD 北大核心 2010年第5期487-491,共5页
目的在神经元样PC12活细胞上进行实时、可视和定量研究5-羟色胺1A受体的时空分布、膜转运和信号传导机制。方法运用RT-PCR方法获得小鼠5-HT1A基因,并插入到pEGFP-N1真核表达载体中。采用阳离子脂质体方法将质粒转染至PC12细胞和HEK293... 目的在神经元样PC12活细胞上进行实时、可视和定量研究5-羟色胺1A受体的时空分布、膜转运和信号传导机制。方法运用RT-PCR方法获得小鼠5-HT1A基因,并插入到pEGFP-N1真核表达载体中。采用阳离子脂质体方法将质粒转染至PC12细胞和HEK293细胞中,通过G418筛选出稳定表达5-HT1A-EGFP的PC12细胞系。运用激光共聚焦成像系统观察活细胞中5-HT1A-EGFP的表达情况,利用光漂白荧光恢复(FRAP)技术在PC12细胞膜局部漂白后观察5-HT1A-EGFP荧光蛋白在细胞膜上转运的情况。结果克隆所获得的小鼠5-HT1A基因是准确的。5-HT1A-EGFP蛋白清晰的分布于PC12和HKE293细胞膜上。通过FRAP技术观察到漂白区域的细胞膜在100s内有部分恢复,说明受体在细胞膜上发生转运。结论建立了稳定表达5-HT1A-EGFP融合蛋白的PC12细胞系,并利用活细胞成像和FRAP技术观察分析并证实了5-HT1A受体在PC12细胞的膜表面的表达和转运的动态变化。 展开更多
关键词 5-羟色胺1A受体(5-HT1A) g蛋白偶联受体(gPCRs) 绿色荧光蛋白(gFP) PC12细胞 光漂白荧光恢复技术(FRAP)
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