A novel deep learning based time-varying channel prediction method by Jie ZHANG, Lihua YANG, Zenghao WANG, Bo HU, Qian NIE

“…For high-speed mobile orthogonal frequency division multiplexing (OFDM) systems, a novel time-varying channel prediction method based on deep learning was proposed.To avoid the influence caused by random initialization of network parameters, the proposed method firstly obtains an ideal channel estimation based on data and pilot, and then pre-trains the back propagation (BP) neural network based on the channel estimation to obtain the ideal network initial parameters.Then, based on the initial network value obtained by pre-training, the proposed method uses the channel estimation based on pilot to train the BP neural network again.Finally, the proposed method realizes the single-time-and multi-time prediction of time-varying channels through on-line prediction.Simulation results show that the proposed method can significantly improve the prediction accuracy of time-varying channels and has a low computational complexity.…”
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Study of multiple frequency-offset and channel joint ML estimation over virtual multi-antennas OFDM system by JIANG Jian, JIANG Hua, YAN Kai, LIU Hai-tao

“…A pilot-aided joint estimation of the carrier frequency offsets（CFO） and channels of a virtual multi-anten-nas（VMA） orthogonal frequency-division multiple（OFDM） system was considered.For a VMA-OFDM system,each pair of transmit and receive antennas possibly having a different CFO and CIR（channel impulse response） parameters made the parameters joint estimation a challenge task.By utilizing the series expansion of the matrix inversion and maximum likelihood（ML） criterion,a computationally efficient estimator allowing for simultaneously estimating the unknown pa-rameters was developed.The mean square-error（MSE） performance of the interested parameters for the proposed estima-tor was compared with the Cramer-Rao bound（CRB）.In addition,the pilot sequence design was investigated by analysis and simulations.Simulation results show that the proposed low-complexity estimator asymptotically achieves the CRB and overcomes the drawbacks of existing estimators.…”
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Novel navigation signal design based on spreading code time shift position modulation by Jiafang KANG, Hongxing WANG, Xiguo LIU, Peilin ZHONG, Bifeng LI

“…A novel navigation signal design method based on spread code time shift position modulation was proposed,which inherits the idea of separating the pilot signal component and the data signal component,and applies time shift position of the spread code to carry data information.The old pattern of using carrier phase to carry information was changed,the power efficiency of data signal components and the performances of the satellite navigation system were improved.Theoretical analysis and simulation results show that the proposed method can significantly improve the transmission rate of data signal component or power ratio of the pilot signal component to data signal component without increasing the total transmission power.Then,the transmission rate,acquisition and tracking performance,positioning accuracy and other technical indicators of the satellite navigation system can be further improved.…”
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Research on Optimization of Pooling System and Its Application in Drug Supply Chain Based on Big Data Analysis by DengFeng Wu, Hongyi Mao

“…Drug Pooling System is proposed and applied in a few pilot cities to resolve these problems. From the perspective of supply chain, this study analyzes the process of setting important parameters and sets out the tasks of involved parties in a pooling system according to the issues identified in the pilot run. …”
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Results of Cultural Adaptation of Cognitive Stimulation Therapy (CST) for Elderly and Old Age People with Cognitive Impairment in Russia by A.A. Shvedovskaya, I.F. Roshchina, M.V. Kalantarova, A.I. Khromov

“…Directed observation of the participants of the pilot study was also conducted (monitoring of progress, monitoring of support). …”
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Zakat-based urban farming: A tool for poverty alleviation, community empowerment, financial inclusion, and food security by Kinan Salim, Baharom Abdul Hamid, Ziyaad Mahomed, Wiaam Hassan

“…In collaboration with a leading Islamic bank in Malaysia, the model was pilot tested across selected residential communities in Malaysia. …”
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Progress and prospects of research on wetland concession system by LIU Qianqian, XU Ruiliang, JIN Cheng, SUN Dongfang

“…Analyzing the research framework, characteristics, and development trends of wetland concession systems both domestically and internationally can provide scientific reference for the pilot work of wetland concession system in China. …”
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Cross-cultural adaptation of the Hospital Survey on Patient Safety Culture questionnaire to the Cuban context by Rosa María Blanco Quintana, Yuliett Mora Pérez, Tania Solange Bosi de Souza Magnago, Liuva Miriela Navarro Martiatu, Yoslaidy Guerra Insua, Zenia Tamara Sánchez García

“…<br /><strong>Methods:</strong> descriptive, cross-sectional study, carried out from January to March 2023, with workers from the Frank País International Orthopedic Scientific Complex, which consisted of four phases: first phase: instrument qualitative analysis, second phase: scale selection, third phase: pilot test with 17 workers, fourth phase: second pilot test with 30 workers.…”
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Can big data reduce urban environmental pollution? Evidence from China's digital technology experimental zone. by Jiahao Zhang, Fusheng Liang, Peng Gao

“…We also find that the national digital technology integrated pilot zone can mitigate environmental pollution in prefecture-level cities by increasing public environmental awareness and encouraging green technology innovation. …”
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Expanding the green gaming horizon: a conceptual analysis of and proposed guidelines for upscaling environmental game usage in climate education by Kristoffer Skomsøy Fjællingsdal

“…Despite this increasing popularity, however, most environmental gaming studies exist as small-scale pilot studies that often result in generating limited, albeit promising results in terms of increasing awareness and knowledge around environmental topics. …”
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Multi-user joint RIS channel estimation based on ADMM by ZHU Luhu, WANG Anding

“…Simulation results demonstrate that, compared to existing methods, the proposed ADMM-based channel estimation algorithm for multi-user joint scenarios reduces pilot overhead by approximately 50%.…”
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Using data envelopment analysis to evaluate the efficiency of creative tourism in Portugal by Mansour Ghanian, Paula Remoaldo

“…This paper presents an indicator system for evaluating Creative Tourism activities developed in four regions of Portugal through CREATOUR’s pilot projects. It is a quantitative study based on primary and secondary sources. …”
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AI-enabled 5G energy-saving technology by Dan XU, Yu ZENG, Weiye MENG, Lika LI

“…With the development of 5G commercialization, the number of 5G wireless base station sites has increased sharply, 5G core networks need to be deployed in regions/provinces/cities data centers, as well as the data centers were developing on a larger scale, the problem of energy consumption was becoming increasingly prominent.Based on the main proportion of energy consumption in the whole network, the energy efficiency evaluation methods of 5G access network, core network and data center was investigated.The AI-enabled energy-saving technology of base stations and pilot application scheme, 5G core network energy-saving methods by using AI, as well as the AI-enabled energy-saving technology of data centers and pilot application scheme were introduced, and the challenges and future research directions of energy-saving technology were finally discussed.The summary and prospect on the energy-saving technology of the overall communication system, will help to improve the understanding of energy efficiency and green network development.…”
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Management and Control Strategy for Water Pollutant Discharge from Key Industries in the River Basin by LING Yaozhong, HAN Nini, PENG Xiang, WANG Chunling

“…The pollution is in the water while the source is on the shore.The pollutants in a river mainly come from the discharged onshore industrial and domestic sewage.Among them,the pollutants in the industrial wastewater from industrial enterprises have always been the difficulties in the environmental management of a river basin due to their large quantity,wide distribution,and complex types.Taking the electronics manufacturing industry,a key industry in the Shima River (Dongguan section) Basin,as a pilot,this paper puts forward a screening method for key industries in the basin from three aspects:the trend of regional development planning,the industrial economic structure of basin development,and the main pollution indicators.Then,it proposes a hierarchical evaluation standard system and differentiated management methods and further determines a management and control and risk prevention plan for water pollutant discharge from key industries in the basin to accumulate pilot experience for the supervision of industrial enterprises in the river basin.…”
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Automation of Presentation Record Production Based on Rich-Media Technology Using SNT Petri Nets Theory by Ivo Martiník

“…Last year, a special pilot audiovisual lecture room was built as a part of the MERLINGO (MEdia-rich Repository of LearnING Objects) project solution. …”
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Design and implementation of AI-based all-scenario intelligent base station power-saving system by Wei ZHAO, Bei LI, Ning MENG, Tingwei WANG, Junfan LIN, Le CHEN, Yuhua HU, Hanyuan YANG

“…In the context of intensive network construction, how to realize automatic, intelligent, and experienceguaranteed base station energy consumption management has become a pain point for current operators in operation management.A 3G/4G/5G smart base station power saving solution with full intelligent detection, full-scenario modeling, and full-process self-service was innovatively proposed.The coverage scene was distinguished by a dynamic time warping algorithm, and the SARIMA model was used to predict the time frame to build the model dynamically.Monitoring indicators ensured quality of experience, automatically issue power-saving strategies, and promptly raise SMS alerts.In the case that the user had no perception, the energy consumption of the base station was saved to the greatest extent at the cell granularity level.This method had been implemented on a pilot study in a province.The average annual power saving efficiency of a single station in the pilot area can reach 9.24% per day per station, which can be put in actual production.…”
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Estimation of FBMC/OQAM Fading Channels Using Dual Kalman Filters by Mahmoud Aldababseh, Ali Jamoos

“…We address the problem of estimating time-varying fading channels in filter bank multicarrier (FBMC/OQAM) wireless systems based on pilot symbols. The standard solution to this problem is the least square (LS) estimator or the minimum mean square error (MMSE) estimator with possible adaptive implementation using recursive least square (RLS) algorithm or least mean square (LMS) algorithm. …”
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RETRACTION Latino, F., Martinez-Roig, R., Susanto, N. ., Setyawan, H. ., Anam, K., Saraiello, E., & Tafuri, F. (2024). Entrenamiento Interválico de Alta Intensidad y Demandas Fisio... by RETOS RETOS

“…Entrenamiento Interválico de Alta Intensidad y Demandas Fisiológicas en Tenistas en Silla de Ruedas: Un Estudio Pilot (High-Intensity Interval Training and Physiological Demands in Wheelchair Tennis Players: A Pilot Study). …”
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ADAPTATION OF INTERPERSONAL COUNSELLING FOR ADOLESCENTS (IPC-A) FOR FINNISH STUDENT WELFARE SERVICES – RETROSPECTIVE EVALUATION BY USING AN EXPANDED FRAMEWORK FOR REPORTING ADAPTAT... by NOORA SEILO, KRISTIINA MÄMMI, OUTI LINNARANTA

“…More than 30 modifications were made to IPC-A during the pilot and national implementation. Most adaptations occurred in the pilot phase, were proactive and were executed to improve feasibility and outcome. …”
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Novel Procedures for Evaluating Autism Online in a Culturally Diverse Population of Children: Protocol for a Mixed Methods Pathway Development Study by Venus Mirzaei, Jeanne Wolstencroft, Georgia Lockwood Estrin, Eleanor Buckley, Shermina Sayani, Panos Katakis, Reena Anand, Tessa Squire, Eleanor Short, Paige Frankson, David Skuse, Michelle Heys

“…As of November 2024, we had enrolled 57 participants to the pilot study and 12 to the qualitative substudy. …”
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