Showing 361 - 380 results of 456 for search '"communication system"', query time: 0.08s Refine Results
  1. 361

    A Descriptive Study on Common Causes, Treatment and Outcome of Neck Injuries by Hamna Abdu Nazir, Wilson Desai, Reshma Chavan, Sarvesh Azgaonkar

    Published 2024-11-01
    “…Resolving societal issues like poverty and drug addiction, implementing government enforcement measures, and improving communication systems can reduce complications and death rates. …”
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    Article
  2. 362

    Towards 6G: Spectrally efficient joint radar and communication with radio frequency selection, interference and hardware impairments (invited paper) by Aryan Kaushik, Evangelos Vlachos, John Thompson, Maziar Nekovee, Fraser Coutts

    Published 2022-09-01
    “…Abstract The joint radar‐communication (JRC) system is envisioned as an emerging sixth generation (6G) technology to tackle spectral congestion and hardware limitations by jointly implementing the communication and radar sensing on the same hardware platform and using the common radio frequency (RF) resources. Joint radar‐communication systems with a multi‐antenna setup leads to higher degrees of freedom, and hybrid beamforming can be exploited to achieve lower hardware complexity than conventional fully digital systems. …”
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  3. 363

    Metasurface-enabled multifunctional single-frequency sensors without external power by Masaya Tashiro, Kosuke Ide, Kosei Asano, Satoshi Ishii, Yuta Sugiura, Akira Uchiyama, Hiroki Wakatsuchi

    Published 2024-10-01
    “…Our study affords new opportunities for sensing multiple physical properties without relying on an external power source or requiring multiple frequencies, which markedly simplifies and facilitates the design of next-generation wireless communication systems.…”
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    Article
  4. 364

    Radio and Radial Radio Numbers of Certain Sunflower Extended Graphs by Mohammed K. A. Kaabar, Kins Yenoke

    Published 2022-01-01
    “…Communication systems including AM and FM radio stations transmitting signals are capable of generating interference due to unwanted radio frequency signals. …”
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    Article
  5. 365
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  8. 368

    Enhancing Channel Selection in 5G with Decentralized Federated Multi-Agent Deep Reinforcement Learning by Taghi Shahgholi, Keyhan Khamforoosh, Amir Sheikhahmadi, Sadoon Azizi

    Published 2024-12-01
    “…The increasing popularity of vehicular communication systems necessitates efficient and autonomous decision-making to address the challenges of vehicle-to-vehicle (V2V) and vehicle-to-infrastructure (V2I) communications. …”
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  9. 369
  10. 370

    Les lois linguistiques de la brièveté : conformité chez le lémurien chanteur Indri indri by Daria Valente, Chiara De Gregorio, Livio Favaro, Olivier Friard, Longondraza Miaretsoa, Teresa Raimondi, Jonah Ratsimbazafy, Valeria Torti, Anna Zanoli, Cristina Giacoma, Marco Gamba

    Published 2023-03-01
    “…Although Zipf's law is considered a universal in animal communicative systems, evidence for the adherence of non-human primate vocal behavior to linguistic laws is debated, and information on strepsirrhines is absent. …”
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    Article
  11. 371

    A New Physical Layer Security Scheme Based on Adaptive Bit Channel Selection for Polar-Coded OFDM by Yuki Kuraya, Hideki Ochiai

    Published 2024-01-01
    “…We propose a new physical layer security scheme for a wiretap channel in polar-coded OFDM-based wireless communication systems. Our approach is based on the <italic>adaptive bit channel selection</italic>, where the input bit channels of polar code are selected according to the frequency selectivity of the main channel. …”
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    Article
  12. 372

    SOC-Based Simulation of 3D MIMO Mobile-to-Mobile Fading Channels: A Riemann Sum Approach by Carlos A. Gutierrez, Raul A. Fabian-Rodriguez, Francisco R. Castillo-Soria, Cesar A. Azurdia-Meza, Pablo Adasme

    Published 2024-01-01
    “…These assumptions impose important limitations, as the mobile communication systems are evolving to provide service in a variety of three-dimensional (3D) environments by employing different antenna array configurations. …”
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    Article
  13. 373

    Enhancing System Capacity Through Joint Space‐Ground Multi‐Beam Coordination for LEO Satellite Systems by Yuyang Liu, Tong Shi, Hua Wang

    Published 2025-01-01
    “…This research contributes to the development of stable and efficient communication systems in satellite‐ground cooperative networks.…”
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    Article
  14. 374

    Variable Is Better Than Invariable: Sparse VSS-NLMS Algorithms with Application to Adaptive MIMO Channel Estimation by Guan Gui, Zhang-xin Chen, Li Xu, Qun Wan, Jiyan Huang, Fumiyuki Adachi

    Published 2014-01-01
    “…Channel estimation problem is one of the key technical issues in sparse frequency-selective fading multiple-input multiple-output (MIMO) communication systems using orthogonal frequency division multiplexing (OFDM) scheme. …”
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    Article
  15. 375

    Frequency-Tunable Tri-Band Metamaterial-Inspired Antenna by Kyung-Duk Jang, Jae-Hyun Lee

    Published 2025-01-01
    “…The proposed antenna has the advantages of multi-band, frequency-tunable characteristics, and easy fabrication, and can be widely used in various wireless mobile communication systems.…”
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  16. 376

    A multi-band dual-layer encoded microwave absorber with angle selectivity by Senfeng Lai, Jingyi Luo, Junxian Tan, Huiyuan Fu

    Published 2025-03-01
    “…To meet the pressing demands of modern wireless communication systems for controllable, angle-selective, transparent, and multi-band microwave absorbers, the designed absorber consists of upper and lower transparent coded structures with an intermediate air layer.Further analysis of the absorber’s operating principle revealed that under normal incidence conditions, the absorber exhibits four resonant peaks at 13.1 GHz, 25.0 GHz, 33.5 GHz, and 35.6 GHz, with absorption rates exceeding 99.8 %.Ultimately, we fabricated samples and measured their absorption performance within the frequency range of 0–26 GHz under experimental conditions. …”
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  17. 377

    Time-Dependent Magnetohydrodynamic (MHD) Flow of an Exothermic Arrhenius Fluid in a Vertical Channel with Convective Boundary Condition by M. M. Hamza, S. Abdulsalam, S. K. Ahmad

    Published 2023-01-01
    “…There are several scientific and infrastructure capabilities that use this type of flow, such flow including solar communication systems exposed to airflow, electronic devices cooled at room temperature by airflow, nuclear units maintained during unscheduled shutoffs, and cooling systems occurring in low circumstances. …”
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    Article
  18. 378

    Method of Achieving the Least Loss of Information in an Asynchronous Binary Single-Photon Communication Channel with a Receiver Based on a Photon Counter by A. M. Timofeev

    Published 2020-03-01
    “…Receiving modules of single-photon communication systems should provide the smallest loss of transmitted information when measuring low-power optical signals. …”
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  19. 379

    An ultra-wideband thin metamaterial linear cross-polarization conversion by Pegah Nochian, Zahra Atlasbaf

    Published 2025-01-01
    “…The compact, thin, and ultra-wideband design makes this CPC a promising candidate for applications in advanced communication systems such as radar cross-section reduction and electromagnetic interference suppression. …”
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    Article
  20. 380

    Exploring the intricacies of plant growth promoting rhizobacteria interactions: an omics review by Kamogelo Mmotla, Nompumelelo R. Sibanyoni, Farhahna Allie, Lungile Sitole, Thendo Mafuna, Manamele D. Mashabela, Msizi I. Mhlongo

    Published 2025-02-01
    “…In this review, we undertake a thorough examination centred on the communication systems that regulate interactions among PGPR in the rhizosphere. …”
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    Article