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  1. 901
  2. 902

    Service mesh technology evaluation and integration scheme based on telecom operator perspective by Liyun YAN, Xinzhang YANG, Zhenwei HE, Yuanzhi LIN, Shaoxin HOU

    Published 2020-06-01
    “…Microservice architecture has evolved along with the changes in enterprise software architecture,from the embedded and integrated micro-service architecture to the non-intrusive and decoupled service mesh.The various of micro-service architectures have sprung up.Choose which microservice architecture to integrate has become an important part of the layout of microservices for the telecom operators.The evaluation and integration of service mesh (non-intrusive architecture) technologies based on the operator’s business characteristics was focused on.In the evaluation,choose the open source,mainstream service mesh technologies and cloud service provider’s microservice solutions were compared and analyzed from multiple dimensions,and the development trend of microservice technology and architecture was obtained.The integration category focused on the integration of Istio technology and Kubernetes which were mainstream technologies in their respective fields,and a heterogeneous microservice framework and development ideas that supported complex scenarios was innovatively proposed.Finally,combined with the differentiated needs of operators’ 5G SBA services,the key research and optimization directions of the operator’s service mesh technology were probed.…”
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  3. 903

    Effect of Free Formaldehyde on Chemical Structure and Thermal Properties of Nano-Titanium Dioxide Resin by Li Lv, Airong Wang, Yingying Zhong

    Published 2022-01-01
    “…The experimental results show that the formaldehyde degradation rate of the photocatalytic coating prepared by loading 5 g nano-TiO2 into a 200 g emulsion system can reach 93% under the conditions of room temperature of 25°C, humidity of 50%, and UV lamp irradiation of 120 min. …”
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  4. 904

    Key Technology of Internet of Things Middleware and Computer Event Matching Algorithm by Laicun Li, Rulin Bai

    Published 2022-01-01
    “…The experimental results show that the clustering accuracy of different datasets is above 85%, and the clustering accuracy of causality reaches 96.07% when the dataset is 5G. Therefore, the algorithm proposed has high feasibility, good stability, and high speed and effectiveness for complex event processing. …”
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  5. 905

    Automatic classification of mobile apps to ensure safe usage for adolescents. by Hanadi Hakami

    Published 2025-01-01
    “…With the imminent arrival of fast internet (6G), offering increased bandwidth and reduced latency compared to its predecessor (5G), real-time streaming of high-quality video and audio to mobile devices will become feasible. …”
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  6. 906

    LEO Satellite Internet of Things Access Technology Based on Beamforming by Xuxu XIE, Xiaojin DING, Tao HONG, Gengxin ZHANG

    Published 2023-03-01
    “…The integration of terrestrial communication and satellite communication for internet of things (IoT) is the inevitable trend of the development of wireless communication network, to achieve the vision of the connection of everything.As a supplement to terrestrial IoT, satellite IoT can make up the fl aws of terrestrial IoT.However, with the expansion of IoT scale, it will be diffi cult for satellites to meet the communication needs of increasing number of IoT terminals, because the problem of limited satellite load will become increasingly prominent.Multiple-input multiple-output (MIMO) technology is the key technology of terrestrial 5G, and also an important research direction of satellite communication in the future 6G.The beamforming(BF) technology was introduced in MIMO into the low earth orbit (LEO) satellite based IoT, to made full use of spatial resources and signifi cantly improved system capacity.In view of the implementation conditions of BF technology and the characteristics of satellite IoT, several related issues were discussed, included channel model, BF criterions, load balancing access technology of one satellite and cooperative BF access technology of several satellites.…”
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  7. 907

    Hubungan Aktivitas Fisik terhadap Kadar Hemoglobin pada Mahasiswa Anggota UKM Pandekar Universitas Andalas by Laura Kosasi, Fadil Oenzil, Amel Yanis

    Published 2014-05-01
    “…Hasil penelitan didapatkan (1) kadar hemoglobin rata-rata laki-laki 15,98 g/dL dengan tertinggi 17,5 g/dL dan terendah 13,1 g/dL serta yang perempuan rata-rata 13,38 g/dL dengan tertinggi 15,8 g/dL dan terendah 12,1 g/dL, (2) tingkat aktivitas fisik anggota Pandekar dari 28 responden terdiri atas 25 responden aktif dan 3 responden kurang aktif. …”
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  8. 908

    Walnut oil prevents hyperlipidemia induced by high-fat diet and regulates intestinal flora and liver metabolism by Rui Yang, Dan Chen, Yanling Chen, Yage Ma, Chaoyin Chen, Shenglan Zhao

    Published 2025-01-01
    “…The rats were randomly assigned to one of the five groups: the normal group (ND), the model group (HFD), and three walnut oil intervention groups differing in dosage [low-dose (OL, 2.5 g/kg. BW/day), medium-dose (OM, 5 g/kg. BW/day) and high-dose (OH, 10 g/kg. …”
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  9. 909
  10. 910

    Research and application of G-SRv6 head compressions optimization technology by Weiqiang CHENG, Yisong LIU, Wenying JIANG, Geng ZHANG

    Published 2020-08-01
    “…As the key technology of the new generation IP network,SRv6 has gradually become the direction of network evolution in the 5G and cloud networks.The problems how to solve the problems of excessive head overhead,low payload efficiency,and difficult upgrading from the existing network has become the focus of the industry.Based on this technical problem,header compression design principles were proposed firstly,including mechanism compatible with standard SRv6 header encapsulation,inheriting the advantages of standard SRv6 and IPv6,compatible with existing network address plan,achieving an effective balance of compression efficiency and processing performance,and interconnecting with existing networks.Secondly,a G-SID header compression solution was proposed based on common prefix stitching,the key technical capabilities of G-SID container,COC flavor,and SID index were defined,and a network orchestration solution for mixed deployment of compressed and uncompressed networks was proposed.Finally,the progress of the G-SID solution in the industry’s international standards was introduced,and has been verified by the interoperability of multi-vendor equipment,and the pilot deployment on the existing network was planned to promote the rapid deployment of SRv6 on the entire network.…”
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  11. 911

    Predictive channel scheduling algorithm between macro base station and micro base station group by Yinghai XIE, Ruohe YAO, Bin WU

    Published 2019-11-01
    “…A novel predictive channel scheduling algorithm was proposed for non-real-time traffic transmission between macro-base stations and micro-base stations in 5G ultra-cellular networks.First,based on the stochastic stationary process characteristics of wireless channels between stationary communication agents,a discrete channel state probability space was established for the scheduling process from the perspective of classical probability theory,and the event domain was segmented.Then,the efficient scheduling of multi-user,multi-non-real-time services was realized by probability numerical calculation of each event domain.The theoretical analysis and simulation results show that the algorithm has low computational complexity.Compared with other classical scheduling algorithms,the new algorithm can optimize traffic transmission in a longer time dimension,approximate the maximum signal-to-noise ratio algorithm in throughput performance,and increase system throughput by about 14% under heavy load.At the same time,the new algorithm is accurate.Quantitative computation achieves a self-adaption match between the expected traffic rate and the actual scheduling rate.…”
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  12. 912
  13. 913

    Application of machine learning in the fake user identification of IoT by Rongfang ZHANG, Dandan XU, Yuanguang WANG, Siyu PAN, Zhengmao LI

    Published 2019-07-01
    “…With the development of communication technology, IoT cards and 5G technologies will be applied on a large scale. …”
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  14. 914

    Power Allocation Technology of Long Time Multi-Star Hopping Beam for LEO Satellite by Ziyi LIU, Xiaoning ZHANG, Zesong FEI

    Published 2023-12-01
    “…LEO satellites have superior development prospects due to their low cost, low latency and small path loss, and are widely used in IoT, B5G and other fields.For the LEO satellite and its coverage area will be in a moving state, a convex optimization-based long-time multi-star beam hopping power allocation algorithm was proposed to maximize the system capacity.Focused on the multi-star hopping beam scenario over a period of time, a system model was developed based on the long-time co-orbital multi-star hopping beam scenario and the long-time heterodyne multi-star hopping beam scenario respectively.The resource allocation algorithm was designed for the two long-time multi-star hopping beams with the weighted objective function as the optimization objective, considered the influence factors of inter-star interference, load balancing and inter-star resource allocation priority, a long-time skipping beam resource allocation algorithm based on convex optimization was proposed.The simulation results showed that the proposed scheme could improve the resource utilization of the system compared with the conventional schemes.…”
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  15. 915

    Lipid Productivity of Marine Microalgae Dunaliella tertiolecta in Marmara Seawater and Johnson’s Media with Different Salinities and Evaluation as A Raw Material Source for Biofuel... by Togayhan Kutluk

    Published 2021-06-01
    “…Day) (10-3)) in nutrient medium (5g) were obtained. On the other hand, the cetane number was calculated according to the dominant arachidic acid (C20:0), it was determined as 74.9 and the average molecular weight of the oil was calculated as 849.1 g / mol. …”
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  16. 916

    Service migration of heterogeneous cloud computing platform by Feng WEI, Fei DING, Pengju JIAO, Yang LI, Yanshan CHEN, Dengyin ZHANG

    Published 2020-12-01
    “…With the rapid development of 5G communication technology,Internet+ and the Internet of things (IoT),cloud computing as an Internet-based virtual resource management and a distributed computing technology,provides services to users in a dynamic,on-demand and measurable manner.The solution of migrating the service platform to the cloud computing platform can realize rapid service deployment and effectively save service innovation and operating cost.With the research of the cloud computing platform-based service migration technology,the China Mobile’s OpenStack-based cloud computing architecture was taken as an example.The technical principles and core points of the mainstream service migration schemes were analyzed,such as offline migration,online migration based on platform functions,online service migration based on the agent block level and online service migration based on agent file level.The general service migration process and method were also given.Finally,three types of online migration schemes were experimentally verified through the actual platform.The technical advantages and adaptation scenarios were analyzed separately to guide the production practice of future business migration.…”
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  17. 917

    Non-orthogonal multiple access wireless energy harvesting cooperative system by Xiaoping JIN, Qing WU, Wenchao ZHAI, Jianrong BAO

    Published 2021-04-01
    “…Non-orthogonal multiple access (NOMA) has recently attracted wide attention as a promising multiple access technology adopted in 5G cellular networks.In order to improve the spectrum efficiency, coverage and anti-noise performance of NOMA technology, while reduce the energy consumption of the system, a simultaneous wireless information and power transfer (SWIPT) cooperative network uplink NOMA transmission system based on orthogonal index modulation multiple access (IMMA) technology was designed, hereafter was denoted as QIMMA-SWIPT.Specifically, the QIMMA system was formed by multiple remote users, and it improved the spectrum efficiency and anti-noise performance as well as expanded the communication coverage and reduced the energy consumption of the system by decoding and forwarding relay cooperative transmission with SWIPT technology.The theoretical upper bound of the average bit error rate of QIMMA-SWIPT was derived.Simulation and analysis demonstrate that, under the same spectrum efficiency, the bit error rate performance of the cooperative QIMMA-SWIPT system is better than that of the cooperative IMMA-SWIPT and SCMA-SWIPT systems.In addition, the effects of power cut factor and source-to-relay distance on bit error performance were also deeply analyzed.…”
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  18. 918

    Value-difference learning based mMTC devices access algorithm in multi-cell network by Xin LI, Jun SUN

    Published 2022-06-01
    “…In the massive machine type communication scenario of 5G, the access congestion problem of massive machine type communication devices (mMTCD) in multi-cell network is very important.A double deep Q network with value-difference based exploration (VDBE-DDQN) algorithm was proposed.The algorithm focused on the solution that could reduce the collision when a number of mMTCDs accessed to eNB in multi-cell network.The state transition process of the deep reinforcement learning algorithm was modeled as Markov decision process.Furthermore, the algorithm used a double deep Q network to fit the target state-action value function, and it employed an exploration strategy based on value-difference to adapt the change of the environment, which could take advantage of both current conditions and expected future needs.Moreover, each mMTCD updated the probability of exploration according to the difference between the current value function and the next value function estimated by the network, rather than using the same standard to select the best base eNB for the mMTCD.Simulation results show that the proposed algorithm can effectively improve the access success rate of the system.…”
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  19. 919

    Design and Realization of Jiujiang Urban Smart Water Platform Based on Digital Twin Technology by CHEN Guobiao

    Published 2022-01-01
    “…Nowadays,the digital technology based on digital twin is becoming increasingly mature.To make the water environment treatment of the Yangtze River stable and efficient for a long time,Shanghai Investigation,Design & Research Institute (SIDRI) adopted the advanced concept of smart water in the water environment treatment of the central urban area in Jiujiang,the first pilot city of the Yangtze River Protection,and developed a smart water platform with the digital twin as a core technology.With the digital twin technology,SIDRI built the data base of the city and applied the smart water platform combined with 5G Internet of things,hydraulic modeling and cloud computing technology.Integrating the data of river water regime,water quality,regional rain regime,pump station operation,real-time monitoring of pipe network and other water management content,SIDRI created a spatial-temporal model of the water environment in Jiujiang central urban area with the platform,which improves the efficiency of comprehensive treatment and integrated operation of “plant-network-river-lake-(bank).” …”
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  20. 920

    HARQ scheme for sparse code multiple access based on network coding by Ke LAI, Jing LEI, Wei LIU, Lei WEN

    Published 2022-09-01
    “…To fulfill the stringent reliability and throughput demand of the beyond-5G and the forthcoming 6G, a novel network coding (NC) based hybrid automatic retransmission request (HARQ) for low-density parity check (LDPC) coded SCMA was proposed.Two incorrectly received packets from different time slots were retransmitted by using NC principle under multi-user scenario.By doing so, the information came from two packets could be conveyed in one retransmission.Moreover, extra coding gain could be attained at the receiver.Furthermore, since the similarity between SCMA detector and LDPC decoder, and the one check node feature of NC decoder, a SCMA, LDPC and NC joint decoder based on message passing algorithm (MPA) was proposed.The proposed scheme could fully utilize the soft messages come from current and previous transmissions, and thus exploiting satisfied coding gain from NC.Simulation results show that the superiority of the proposed novel HARQ scheme for SCMA over the conventional HARQ on both throughput and reliability.…”
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