Low-complexity optimal MPSK detection for spatial modulation by Hong-zhi MEN, Ming-lu JIN

“…The low-complexity optimal SM detection algorithm for MQAM signal detection had been proposed,but no similar method was found for MPSK signal.The problem of low-complexity detection for MPSK signal was considered in SM systems.Utilizing 2-D vector quantization of ML demodulation and the property of MPSK constellation,a low-complexity optimal detection which is independent to modulation order was developed.Since the approach avoids the exhaustive searching on signal constellation space,the computational complexity can be significantly reduced.The proposed detection algorithm can provide the identical performance with ML-optimum detector and has lower computational complexity.Therefore,it has both theoretical and practical significance.The proposed algorithm is of great significance in the large antenna and green communication technology.…”
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Construction of Meaning of the Undergraduate Course in Business Administration by High and Low Income Students by Marcelo de Rezende Pinto, Marcos Eugênio Vale Leão, Ramon Silva Leite, Danielle Ramos de Miranda Pereira

“…The results, which were compared with the theoretical framework on consumption in a cultural and symbolic perspective, signaled there is a difference in meaning between the two groups of students.…”
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Optimization Design and Simulation of Adjusting Mechanism for Wall-press Oil and Gas In-pipe Robot by Yang Caixia, Li Jianjun, Sun Weihong, Xu Xiaodong

“…The optimized nut horizontal thrust is reduced 41. 5%,besides,the impact load which acts on adjusting mechanism of in-pipe robot is simulated,the influence of the horizontal thrust and changes in the situation of compression spring when the adjusting mechanism is in the process of adjusting or suffering impact load is separately obtained,the theoretical basis for the selection of suitable motor and the compression spring is provided.…”
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Congestion-Aware Signaling Aggregation and Barring Scheme for LTE Based Machine-to-Machine Network by Fangmin Xu, Chao Qiu, Pengbiao Wang, Xiaokai Liu

“…With LTE network being the example access network, a congestion-aware signaling aggregation and barring scheme is designed considering the various requirements of M2M services and the congestion situation in the network entity. Theoretical analysis and experimental simulations show that this scheme can improve the system efficiency and greatly alleviate the signaling congestion, especially for the bursty M2M service.…”
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O Rio Grande do Norte no Brasil: uma contextualização em onze imagens by Raimundo Nonato Junior, Hervé Théry

“…The data treated refer to: population; demographic density; sectors of GDP; metropolises and urban hierarchies; theoretical area of influence of the metropolises; flows, airports and GDP; development index; cultural equipment; potential viewers; engines of development and efficiency of municipalities. …”
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Data stream prediction based on rule antecedent occurrence tree matching by Tao YOU, Ting-feng LI, Cheng-lie DU, Dong ZHONG, Yi-an ZHU

“…There are some shortages in the existing rule-based data stream prediction algorithm，such as inaccurate definition of antecedent occurrence，ignoring the correlation between rules and imprecise description of prediction accuracy.These make low forecasting process efficiency and low prediction accuracy.The superposed prediction algorithm was proposed based on antecedent occurrence tree，and interval minimal non-overlapping occurrence was defined to avoid the problem of excessive matching antecedent.The efficiency was improved for searching antecedent’s occurrence by merging rule’s antecedents in antecedent occurrence tree，and the succedent occurrence based on superposed probability was predicted to enhance prediction accuracy.The theoretical analysis and experimental evaluation demonstrate the algorithm is superior to the existing prediction algorithms in terms of time and space efficiency and prediction accuracy.…”
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Antropologia medica nella crisi ambientale. Determinanti biosociali, politica e campi di causazione by Elisa Pasquarelli, Andrea Filippo Ravenda

“…In such a complex framework, this special issue hosts theoretical contributions and ethnographic researches that, in their multiplicity, explore the global articulations of the environmental crisis with its local peculiarities embodied in the experiences of the people who live, work and fall ill in territories damaged or contaminated.…”
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Transitions écologique et numérique : quelle régulation du sens par la Commission européenne ? by Marie-Hélène Hermand

“…After having situated our approach within the theoretical approaches of European public communication and elaborated the methodology according to a discursive and semiotic approach, we confront the results of the discourse analysis with those of the study of textual landscapes. …”
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Solutions and Improved Perturbation Analysis for the Matrix Equation X-A*X-pA=Q   (p>0) by Jing Li

“…A new backward error of an approximate solution to the unique positive definite solution is obtained. The theoretical results are illustrated by numerical examples.…”
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Modeling of edge cracks interaction by V. Petrova, S. Schmauder, A. Shashkin

“…From experimental and theoretical investigations it is known that cracks are sensitive to geometry, e.g., to the inclination angle to the load. …”
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Militantisme et identités gaies et lesbiennes : quelle identité pour quels objectifs ? by Guillaume Marche

“…The lesbian, gay, bisexual and transgender (LGBT) movement is split as to whether it should mobilize exclusively around issues narrowly defined in terms of sexual orientation. This raises the theoretical issue of the relationship between collective identity and political goals: is identity determined by goals, or is it the reverse? …”
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Harmonic Response Analysis of RV Reducer by Wu Suzhen, Guo Yi, Tian Yu

“…Results show that it will lead to the cycloid gear bending vibration and axial deformation when the vibration force of eccentric shaft is around 360 Hz,a theoretical basis for the optimal design of the cycloid gear and the crankshaft is provided.…”
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Parauapebas: na capital do minério, expansão das atividades terciárias by Áthila Lima Kzam

“…From a methodological point of view, it carries out a survey of theoretical references on the subject and develops a qualitative and quantitative research with primary data from the Central Register of Companies, demographic censuses, public finances and the Annual Social Information Report of the Ministry of Labor. …”
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Les démarches de chercheurs en physique et en mathématiques. Enjeux didactiques d’une nouvelle approche épistémologique by Suzane El Hage, Cécile Ouvrier-Buffet

“…In particular, we have questions about the research processes used by the contemporary researchers, in Physics and Mathematics; we model them in a comparative perspective. The theoretical framework chosen (a model of conceptions) is demonstrated that efficient and transdisciplinary. …”
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Broadband receiver of narrowband signal based on the cascaded stochastic resonance by Cheng-guo HOU, Bo-wen LUO, Di LI

“…To improve the demodulation gain of traditional narrowband receiver,a narrowband signal receiving method of broadband based on cascaded stochastic resonance is proposed.On one hand,the noise in the signal is converted to the signal energy by the stochastic resonance operation on the received signal.On the other hand,by cascading stochastic resonance systems,the received signal is changed into square wave signal; and by constructing related sequences with prior information of received signal,the demodulation output has high gain.Theoretical analysis and simulation results show that compared with the traditional approach,this method improves detection performance in terms of SNR by more than 3 dB.And for receiving SNR of QPSK in −7～1 dB,the gain increased is about 20 dB.…”
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Forming Defects Analysis and Process Setting of Hot Rolling Technology of Hypoid Gear by Yanzhen Zhang, Jing Deng, Qingjie Zhang

“…A theoretical analysis of the forming defect in the hot rolling forming process of a hypoid gear wheel is performed. …”
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D’Emma Bovary à Gemma Bovery : une approche traductologique by Ilaria Vitali

“…., punctual choices), in order to better appreciate the macro-structural level (strategic choices). At the theoretical level, it will be a matter of seeing what contribution the tools of translation studies can make to the analysis of a rewriting.…”
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Rôle des compétences sociales et sens de leur interactivité dans la formation : quelles implications pour la recherche et les pratiques pédagogiques ? by Jean-Pierre Abbet

“…Regarding these issues, the roles and the stakes of such skills are then pointed as the theoretical frame of a survey carried out in Switzerland (state of Vaud). …”
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Numerical Approaches of the Generalized Time-Fractional Burgers’ Equation with Time-Variable Coefficients by Dumitru Vieru, Constantin Fetecau, Nehad Ali Shah, Jae Dong Chung

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TDMA-based user scheduling policies for federated learning by Meixia TAO, Dong WANG, Rui SUN, Naifu ZHANG

“…To improve the communication efficiency in FL (federated learning), for the scenario with heterogeneous edge user's computing capacity and channel state, a class of time division multiple access (TDMA) based user scheduling policies were proposed for FL.The proposed policies aim to minimize the system delay in each round of model training subject to a given sample size constraint required for computing in each round.In addition, the convergence rate of the proposed scheduling algorithms was analyzed from a theoretical perspective to study the tradeoff between the convergence performance and the total system delay.The selection of the optimal batch size was further analyzed.Simulation results show that the convergence rate of the proposed algorithm is at least 30% higher than all the considered benchmarks.…”
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