Showing 121 - 140 results of 10,796 for search 'NRMA~', query time: 5.54s Refine Results
  1. 121

    Outage performance of multi-relay collaborative NOMA systems supporting multiple multicast services by Yifei CHU, Xinjie YANG

    Published 2023-07-01
    “…A cooperative non-orthogonal multiple access (NOMA) system was proposed to support unicast primary user and multiple multicast services based on multiple relays strategy.Under the Rayleigh channel, the secondary user with the best channel condition from each multicast group was selected as full-duplex relay to decode and forward the unicast primary user’s signal, and the primary user employed the maximum ratio combining (MRC) technique to improve the signal to interference and noise ratio (SINR).The closed-form expressions for the outage probability of primary user in full-duplex and half-duplex modes with multi-relay simultaneous forwarding (MRSF) and optimal relay forwarding (ORF) were derived and verified by Monte Carlo simulations.The results verify that full-duplex relay outperforms half-duplex relay scheme.Furthermore, with same number of multicast groups, the MRSF strategy effectively improve the unicast primary user outage performance, in comparison with ORF strategy, when the number of multicast groups increases, the improvement becomes more significant.…”
    Get full text
    Article
  2. 122
  3. 123

    Robust transmission algorithm for IRS-assisted NOMA network with hardware impairments and imperfect CSI by Qilie LIU, Jiacheng FANG, Yanan XIN, Qianbin CHEN

    Published 2024-03-01
    “…To improve the robustness and reduce the energy consumption of non-orthogonal multiple access (NOMA) networks, based on hardware impairments (HWI) of transceiver and non-perfect channel state information (CSI), an intelligent reflecting surface (IRS) assisted transmission power minimization algorithm for NOMA networks was proposed.The joint optimization problem of active beam assignment at the base station and passive beam assignment at the IRS was modeled based on HWI and non-perfect CSI.The system considered the user quality of service (QoS) constraint, the serial interference cancellation constraint and the reflection phase shift constraint of the IRS.To solve this nonconvex optimization problem, the QoS constraints were firstly transformed using linear approximation and S-Procedure methods.Then the optimization problem was decomposed into two subproblems.The active beam assignment subproblem was solved using the successive convex approximation (SCA) method.The passive beam assignment subproblem was solved using the penalized convex-concave process algorithm.Finally, the final solution was obtained by iterating the subproblems alternately using alternating optimization.The simulation results show that the proposed algorithm reduces 17.05% compared to the or thogonal multiple access robust algorithm in terms of transmitted power.In terms of system robustness, the proposed algorithm improves by 20.69% and 31.14% compared to the HWI robust algorithm and the CSI robust algorithm, respectively.…”
    Get full text
    Article
  4. 124

    Energy-Efficient Resource Allocation in Mobile Edge Computing Using NOMA and Massive MIMO by Qusay Alghazali, Husam Al-Amaireh, Tibor Cinkler

    Published 2025-01-01
    “…We propose an optimized energy consumption algorithm in NOMA based on the derived processing resource requirements. …”
    Get full text
    Article
  5. 125

    Test Neuropsi: Normas según edad y nivel de instrucción para Argentina. by Andrea N. Querejeta, Yamila Farías Sarquís, Mariana A. Moreno, Andrea L. Crostelli, Juan Ignacio Stecco, Agustina Venier, Juan Carlos Godoy, Angelina Pilatti

    Published 2012-01-01
    “…Los grupos de mayor instrucción no presentaron diferencias significativas entre sí en el Test Neuropsi. Conclusiones: Las normas argentinas del test Neuropsi permiten una interpretación más fiable de sus resultados por parte de los clínicos e investigadores locales.…”
    Get full text
    Article
  6. 126
  7. 127

    The Effectiveness of Hybrid Beamforming in Enhancing the Performance of NOMA-mmWave and Massive MIMO Systems by Oubassghir Mourtada, Boulouird Mohamed

    Published 2024-01-01
    “…As wireless networks evolve, the integration of Non-Orthogonal Multiple Access (NOMA), Massive Multiple Input Multiple Output (mMIMO), and millimeter wave (mmWave) technologies emerges as an effective approach to drive this advancement. …”
    Get full text
    Article
  8. 128
  9. 129

    Adaptif Poly Frame PRMA pada Jaringan M2M Kognitif Kapiler by Eko Arifianto, Aghus Sofwan, Teguh Prakoso

    Published 2020-10-01
    “…Komunikasi mesin ke mesin (M2M) pada jaringan kapiler, menggunakan metode transmisi Packet Reservation Multiple Access (PRMA), dan struktur frame data frame biasa, serta skenario komunikasi event driven. …”
    Get full text
    Article
  10. 130

    Areas urbanizadas by Confins

    Published 2023-03-01
    Get full text
    Article
  11. 131
  12. 132
  13. 133

    Eksistensi nilai-nilai adat Suku Mori dalam era globalisasi by Maddukelleng Maddukelleng

    Published 2023-12-01
    Subjects: “…kelembagaan adat, norma, sanksi, dan globalisasi…”
    Get full text
    Article
  14. 134
  15. 135
  16. 136
  17. 137

    Webbing Barklouse, Psocid (unofficial common names), Archipsocus nomas Gurney (Insecta: Psocoptera: Archipsocidae) by Donald W. Hall, Jerry F. Butler

    Published 2004-12-01
    “… Archipsocus nomas Gurney is a communal web-spinning barklouse. …”
    Get full text
    Article
  18. 138

    E Belém? A questão da apropriação do patrimônio numa freguesia de Lisboa. by Rafael H. Teixeira-da-Silva

    Published 2017-02-01
    “…For the development of this work, the chosen area of study was the neighborhood of Santa Maria de Belém, located in the western region of the city of Lisbon-Portugal. …”
    Get full text
    Article
  19. 139
  20. 140

    Joint channel and impulsive noise estimation method based on approximate message passing for NOMA systems by LI Youming, MA Chongya, WU Yonghong, GUO Qiang

    Published 2024-09-01
    “…To address the channel estimation problem for non-orthogonal multiple access (NOMA) systems under non-Gaussian impulsive noise, a joint channel and impulsive noise estimation method based on approximate message passing was proposed, by exploiting the joint sparsity of the channel and impulsive noise. …”
    Get full text
    Article