An Anonymous User Authentication with Key Agreement Scheme without Pairings for Multiserver Architecture Using SCPKs by Peng Jiang, Qiaoyan Wen, Wenmin Li, Zhengping Jin, Hua Zhang

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The Data Heterogeneity Issue Regarding COVID-19 Lung Imaging in Federated Learning: An Experimental Study by Fatimah Alhafiz, Abdullah Basuhail

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Konkurencyjność przestrzenna rolnictwa w krajach Unii Europejskiej by Agnieszka Tłuczak

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Ocena zmian organizacyjno-produkcyjnych w polskim rolnictwie w kontekście wybranych oddziaływań środowiskowych by Jerzy Kopiński

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Ocena sytuacji towarowych gospodarstw rolnych państw UE z wykorzystaniem metod porządkowania liniowego by Joanna Kisielińska

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Research on the enhancement and key technologies of 5G network for satellite-terrestrial integration by ZHANG Jianyin, NI Lingfei, WANG Hanbai, GU Shangming, LIU Yu, LIU Jinglei

“…Secondly, two enhanced 5G network architectures were introduced, which involved transparent relay satellites and renewable satellites. Finally, the related key technologies were analyzed for the business requirements of satellite-terrestrial integrated communication and the brief summary was given, which provided useful reference for the application of 5G satellite-terrestrial integration.…”
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Konkurencyjność gospodarki Polski na tle gospodarek krajów Europy Środkowo-Wschodniej UE11 by Jakub Kraciuk

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Cooperative ARQ protocol based on switch and stay node selection in WSN by HU Ying-bo1, CAI Yue-ming1

“…A cooperative automatic repeat request（ARQ） protocol based on switch and stay node selection（SSNS-CARQ） was proposed,which could obtain high energy efficiency and reliable transmission at the same time.A Markov model for analyzing the system throughput was built,and system throughput performance of the proposed protocol and the traditional ARQ protocol were analyzed based on such model.Based on a widely used energy consumption model in WSN,the energy consumption performance of SSNS-CARQ protocol and the traditional ARQ protocol were discussed and compared in terms of energy efficiency,and the effects that positions of relay nodes imposed on energy efficiency were also disscussed.Numerical and simulation results validated the Markov model effective for analyzing the system throughput.It is shown that SSNS-CARQ protocol could perform better in terms of throughput and energy efficiency when compared with the traditional ARQ protocol through simulations.…”
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Porównanie ocen zróżnicowania szkolnictwa wyższego w latach 1999 – 2006 w Polsce na podstawie różnych metod normalizacji danych by Piotr Jałowiecki, Arkadiusz Orłowski, Tomasz Woźniakowski, Krzysztof Zmarzłowski

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Research on Transmission Capacity Characteristics of the Cluster Flight Spacecraft Network by Li Su, Jian Wu, Jinrong Mo

“…First of all, by applying the mean value theorem of integrals, the expression of the outage probability of decode-and-forward relaying is derived. Subsequently, according to the Macdonald random variable form, the expression of the outage probability of amplify-and-forward is derived. …”
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Czynniki kształtujące konkurencyjność regionów by Paweł Góralski, Magdalena Lazarek

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Key generation method based on reconfigurable intelligent surface in quasi-static scene by Yinuo HAO, Liang JIN, Kaizhi HUANG, Shuaifang XIAO

“…Aiming at the problems of slow channel changes and low key generation rate in IoT quasi-static scenarios, a key generation method based on reconfigurable intelligent surface (RIS) was proposed.First, the agility characteristics of RIS was used to construct a fast-changing channel.Then, the base station and legitimate users extracted a consistent key from the channel information through channel estimation, conversion, and information negotiation.Finally, optimal time allocation for data transmission and key generation in the coherent time to achieve the maximum transmission rate of one-time pad.The simulation results show that the key generation rate of proposed method is higher than that of the existing relay-assisted method, random signal flow method and random number method, and as the number of RIS reflection units and frequency of channel estimation in the coherence time increase, the key generation rate will be further improve.…”
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Czynniki kształtujące konkurencyjność regionów by Paweł Góralski, Magdalena Lazarek

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Towards Developing Enhanced Cluster-Based QoS-Aware Routing in MANET by Kebebew Ababu Yitayih, Mulugeta Libsie

“…However, the protocol has high overhead because each node selects a set of multipoint relay (MPR) nodes. Therefore, we have proposed quality of service (QoS) supporting the MPR selection approach and a new lower maintenance clustering approach for minimizing the overhead of the network. …”
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Fundusze strukturalne dla bibliotek w okresie programowania 2007-2013 by Maria Wojcińska, Damian Wojciński

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Routing optimization method based on GPCR for vehicular Ad Hoc network by Zhiru GU, Min LI, Yonghong LONG, Xiaohua SHU, Qing RONG

“…To improve the performance in sparse networks,local optimum,and routing loop in the greedy perimeter coordinator routing (GPCR) protocol,the weighted-GPCR (W-GPCR) protocol was proposed.The relationship between vehicle node routing and other parameters such as the Euclidean distance between node pairs,moving direction and density was profoundly analyzed,the composite parameter weighted model was established and the calculation method was designed for the existing routing problems,the weighted parameter ratio was selected adaptively in different scenarios,so as to obtain the optimal next-hop relay node.In order to verify the performance of the W-GPCR method,the proposed method was compared with the existing methods such as the traditional geographic perimeter stateless routing (GPSR) protocol,GPCR and so on,and the results show that the proposed method is superior to the package delivery ratio,end-to-end delay,and average hop count.…”
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À propos de la politique routière de l’État romain : l’apport des fouilles d’Ambrussum (Villetelle, Hérault) by Jean-Luc Fiches

“…The extensive excavations of the Ambrussum relay station (Villetelle, Hérault), established at the foot of the oppidum around 25 BC, seek to determine the functions of its various sections. …”
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Wpływ pandemii COVID-19 na kondycję finansową przedsiębiorstw w Polsce by Ewa Monika Kraska

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Social Contribution-Based Routing Protocol for Vehicular Network with Selfish Nodes by Haigang Gong, Lingfei Yu, Xue Zhang

“…When making forwarding decision, SCR considers both the delivery probability to the destination and the social contributions of the relay node. The delivery probability is determined by the social relations among nodes and social contribution is used as the incentive to stimulate selfish nodes to be more cooperative, which consists of reciprocal contribution and community contribution. …”
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A Coarse-Grained Reconfigurable Architecture with Compilation for High Performance by Lu Wan, Chen Dong, Deming Chen

“…We propose a fast data relay (FDR) mechanism to enhance existing CGRA (coarse-grained reconfigurable architecture). …”
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