Robust Beamforming Algorithm for Multibeam Satellite Communication Based on Downlink NOMA by Pengcheng KAN, Zining WANG, Huaicong KONG, Jian OUYANG, Min LIN

“…To improved the spectrum efficiency of multibeam satellite system and meet the requirement of multi-access, a robust beamforming and power allocation scheme based on non-orthogonal multiple access (NOMA) was proposed.Under the condition that the imperfect channel state information was known, fi rstly, a power minimization problem subject to probability constraints of users’ quality of service requirement and earth stations’ interference-to-noise ratio was formulated.In order to address the non-convex problem, we then adopted Bernstein inequality to converted the probability constraints into deterministic forms and decomposed the original problem into beamforming sub-problem and power allocation sub-problem, and the robust design was conducted by alternating optimization.Simulation results showed that the proposed scheme has better robustness and eff ectiveness compared with other existing schemes.…”
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La norma lingüística como ámbito de la expresión textual. by Pedro Pable Devís Márquez

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Norma HACCP para pescados y mariscos: Información básica para la industria de pescados y mariscos de Florida by Razieh Farzad

Subjects: “…Norma HACCP para pescados…”
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La vigencia de las armas nucleares en el siglo XXI by Carlos Javier Frías Sánchez

“…Siguen pensando la guerra en forma muy similar a sus clásicos eternos.…”
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Adaptive Security Solutions for NOMA Networks: The Role of DDPG and RIS-Equipped UAVs by Syed Zain Ul Abideen, Abdul Wahid, Mian Muhammad Kamal

“…In this work, we apply the Deep Deterministic Policy Gradient (DDPG) technique to improve the security of a non-orthogonal multiple access (NOMA) downlink network by enabling use of a reconfigurable intelligent surface (RIS) equipped unmanned aerial vehicles (UAV). …”
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Analyzing elements of text coherence in Khāvarān Nāma based on Halliday and Hassan's theory by Rowshan Rahmani, Shahrbanoo Haghshenas

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Astra-Gernika: de fábrica de armas a centro social autogestionado by Zesar Martínez

“…Astra es un proceso de los colectivos populares de Gernika para recuperar una antigua fábrica de armas, una experiencia que ha contado con el apoyo facilitador de un equipo de la Universidad del País Vasco. …”
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高速局域网的简化CRMA协议性能分析 by 左鹏, 陈实, 薛青, 林毅恒, 伍剑, 林金桐

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Energy efficiency optimization algorithm for heterogeneous NOMA network based on imperfect CSI by Yongjun XU, Hao XIE, Qianbin CHEN, Jinzhao LIN, Qilie LIU

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Brasil e Guiné-Bissau: possíveis afinidades históricas numa modernidade periférica by Vinicius Lobo

“…É possível encontrar semelhanças na efetivação histórica dos projetos de formação da nação em dois países distintos? …”
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Physical layer security of NOMA-D2D cooperative wireless system by Yifan DING, Guangqiu LI, Hui LI

“…Aiming at the physical layer security (PLS) application requirement of massive user equipments access in the future, the PLS model combining with non-orthogonal multiple access (NOMA), device-to-device (D2D) and relay cooperation was proposed.The model was composed of base station with transmit antenna selection (TAS), NOMA far cellular user of base station and D2D transmitter, D2D receiver and passive eavesdropper, the D2D transmitter was also assumed two roles of NOMA near user of base station and decode-and-forward relay.The approximate expressions for the secrecy outage probability, non-zero secrecy capacity probability and asymptotic secrecy outage probability of NOMA-D2D cooperative wireless system under two TAS schemes were derived by using Gaussian-Chebyshev Quadrature theorem.Numerical and simulation results verify the accuracy of PLS performance analysis of NOMA-D2D cooperative wireless system.The results also show that increasing the power allocated to far cellular user under constant total power of base station can effectively improve PLS performance of NOMA-D2D cooperative wireless system.…”
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Analysis of coverage probability in NOMA-HetNet based on Matern cluster process by Xiaorong JING, Yixi CHEN, Qianbin CHEN

Subjects: “…NOMA-HetNet…”
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RELIGIÓN Y FIGURA FEMENINA: ENTRE LA NORMA Y LA PRÁCTICA by PATRICIA FORTUNY LORET DE MOLA

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Response of the Municipal Health System to Irma Hurricane. Aguada de Pasajeros, 2017 by Midalys Otero Hernández, Víctor René Navarro Machado, Pedro López González, Lazaro Caballero Núñez

“…The universe was the territory total of workers and institutions, all involved in the response to Irma’s hurricane. A documentary review was included (plans, instructions from the Defense Councils, and the Minister of Health) and participating observation. …”
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ARMA Prediction of SBAS Ephemeris and Clock Corrections for Low Earth Orbiting Satellites by Jeongrae Kim, Mingyu Kim

“…Two time series forecasting models, autoregressive moving average (ARMA) and autoregressive (AR), are proposed to predict the corrections outside the service area. …”
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Suicidio por arma de fuego: un problema de salud pública by Jonatan Baños-Chaparro

Subjects: “…armas de fuego…”
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Organisation de la post-catastrophe après Irma à Saint-Martin by Annabelle Moatty, Delphine Grancher, Clément Virmoux, Julien Cavero

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Task offloading and resource allocation in NOMA-based ultra-dense MEC networks by Yun SHENG, Chen XU, Guangyuan ZHENG

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Performance optimization of physical layer security in STAR-RIS aided NOMA system by LI Meiling, WANG Yumin, WANG Sijing, ZHANG Haijun

“…The strong coupling characteristics of the imperfect channel state information and the imperfect successive interference cancellation makes it faces the great challenge in evaluating the secure performance accurately for the simultaneously transmitting and reflecting reconfigurable intelligent surface (STAR-RIS) aided non-orthogonal multiple access (NOMA) transmission systems. To address this issue, a mixed algorithm based on penalty dual decomposition (PDD) and block coordinate descent (BCD) was proposed for optimizing the beamforming vectors at the base station and the phase-shift coefficients of the STAR-RIS jointly, aiming to maximize the minimum secure transmission rate of the system. …”
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Space-time coding scheme for the paired weak user in MIMO-NOMA systems by Mingyan GONG, Zhen YANG

Subjects: “…NOMA…”
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