Showing 381 - 400 results of 447 for search '"wireless network"', query time: 0.05s Refine Results
  1. 381

    Development of Ultra-Broadband Base Station Antenna for All Mainstream LTE 700/800/900 MHz Frequency Bands by Doudou Samb, Zhonglin Wu, Mulin Liu, Hu Bin Jie

    Published 2014-01-01
    “…LTE deployment is being accelerated due to its improved radio access structure meeting the requirements of current and next generation of wireless networks. Its low band application presents useful aspects such as low density of base station while providing good in-building penetration. …”
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    Article
  2. 382

    Optimization model of random load balancing of heterogeneous nodes in complex buildings by Wenlei GUO

    Published 2023-07-01
    “…In order to improve the load balancing of a complex building complex IoT and maintain its stable operation, a random load balance optimization model for non-uniformly distributed nodes in a complex building complex IoT was proposed.Sensor devices were deployed and wireless networks were accessed in complex building clusters to build the Internet of things for complex building clusters.The distribution location of each node in the Internet of things environment was determined, and random load data of non-uniformly distributed nodes was collected and integrated.The priority of non-uniformly distributed nodes was calculated using the IALBR routing protocol.By generating scheduling links and calculating the scheduling amount, the node load balancing scheduling task of the model was completed, and the load balancing of the Internet of things was optimized.The experimental results show that compared with traditional models, the average value of the load balance index of nodes under the design model is 0.002.The application of the design model effectively reduces the congestion probability of the Internet of things and improved network throughput.…”
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  3. 383

    Optimal strategy for maximizing energy efficiency of 4G and 5G coexistence network by Yahui XUE, Zecai SHAO, Chunfeng CUI, Jing JIN, Hanning WANG

    Published 2022-09-01
    “…The energy efficiency of wireless networks has gradually become an important indicator for evaluating network performance.It’s very important to improve the energy efficiency of the coexisting 4G and 5G networks as there are differences in energy efficiency of them.Firstly, the energy consumption composition of base station was analyzed, energy consumption models for 4G and 5G base stations through measured data were established, and then its energy efficiency was evaluated through simulations.The results show that 4G and 5G have their own optimal energy-efficiency areas separated by the critical point of 500 Mbit/s, above which the 5G energy efficiency is better.When dual networks operate simultaneously under the proposed-solution where only 4G is used when the throughput is less than 500 Mbit/s and only 5G is used otherwise, the power consumption of a single station can be reduced by 53.4% and the energy efficiency can be improved by 116.4%.…”
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  4. 384

    An Adaptive Framework for Real-Time ECG Transmission in Mobile Environments by Kyungtae Kang

    Published 2014-01-01
    “…Wireless electrocardiogram (ECG) monitoring involves the measurement of ECG signals and their timely transmission over wireless networks to remote healthcare professionals. However, fluctuations in wireless channel conditions pose quality-of-service challenges for real-time ECG monitoring services in a mobile environment. …”
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  5. 385

    State-of-the-art and trend of emergency rescue communication technologies for coal mine by Qingsong HU, Wei YANG, Enjie DING, Shiyin LI, Binghao LI

    Published 2019-05-01
    “…For the disaster area probing and emergency rescue in a mine,it is of great importance to employ the emergency communication system to communicate with each other,determine the places of trapped miners,and sense current status of disaster area.The hybrid emergency communication architecture model for coal mines was extracted,which was composed of one backbone,multiple branches,several special lines,and some wireless networks as assistance.Four types of emergency communication systems of coal mine were reviewed,namely through-the-air,through-the-wire,through-the-earth and mixed medium type.The key technologies and challenges of these four emergency communication types were analyzed.The research trend was discussed and a new emergency communication mode based on the reconstruction of mine Internet of things was proposed.The main enabling technologies of this new emergency communication mode were analyzed,namely post-disaster reconstruction of mine Internet of things,shifting nodes re-localization after mine disaster,status sensing method of mine disaster area,and data transmission method for post-disaster reconstruction network.…”
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  6. 386

    Admission Control for Multiservices Traffic in Hierarchical Mobile IPv6 Networks by Using Fuzzy Inference System by Jung-Shyr Wu, Shun-Fang Yang, Chen-Chieh Huang

    Published 2012-01-01
    “…CAC (Call Admission Control) plays a significant role in providing QoS (Quality of Service) in mobile wireless networks. In addition to much research that focuses on modified Mobile IP to get better efficient handover performance, CAC should be introduced to Mobile IP-based network to guarantee the QoS for users. …”
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  7. 387

    Near-Field Hierarchical Localization for Integrated Sensing and Communication by Giorgos Stratidakis, Sotiris Droulias, Angeliki Alexiou

    Published 2025-01-01
    “…Localization is expected to play a significant role in future wireless networks, as positioning and situational awareness, navigation and tracking, are integral parts of 6G usage scenarios. …”
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  8. 388

    Enhancing Security With Hybrid Active- Passive RIS: A DRL Approach Against Eavesdropping and Jamming by Abdul Wahid, Syed Zain Ul Abideen, Nouman Imtiaz, Mian Muhammad Kamal, Abdullah Alharbi, Amr Tolba, M. A. Al-Khasawneh, Inam Ullah

    Published 2025-01-01
    “…Our results indicate that the system can achieve substantial security gains even with a limited number of active RIS elements, making it a viable solution for next-generation wireless networks.…”
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  9. 389

    An Improved ARIMA-Based Traffic Anomaly Detection Algorithm for Wireless Sensor Networks by Qin Yu, Lyu Jibin, Lirui Jiang

    Published 2016-01-01
    “…Traffic anomaly detection is emerging as a necessary component as wireless networks gain popularity. In this paper, based on the improved Autoregressive Integrated Moving Average (ARIMA) model, we propose a traffic anomaly detection algorithm for wireless sensor networks (WSNs) which considers the particular imbalanced, nonstationary properties of the WSN traffic and the limited energy and computing capacity of the wireless sensors at the same time. …”
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  10. 390

    ARQ Protocols for Two-Way Wireless Relay Systems: Design and Performance Analysis by Zhenyuan Chen, Qiushi Gong, Chao Zhang, Guo Wei

    Published 2012-06-01
    “…Two-way relay (TWR) communication, a new cooperation paradigm that allows two terminals to share one relay node to communicate with each other in two phases, has played an increasingly valuable role in wireless networks to meet the stringent throughput requirement. …”
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  11. 391

    The Exploration of Network Coding in IEEE 802.15.4 Networks by Deze Zeng, Song Guo, Victor Leung, Jiankun Hu

    Published 2011-01-01
    “…Recently, COPE was proposed as a promising network coding architecture to essentially improve the throughput of wireless networks. In this paper, we exploit the network coding technique at coordinators to improve energy efficiency of the WPAN. …”
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  12. 392

    WiFi and WiMAX Secure Deployments by Panagiotis Trimintzios, George Georgiou

    Published 2010-01-01
    “…One serious concern in the rapidly developing wireless networking market has been the security of the deployments since the information is delivered freely in the air and therefore privacy and integrity of the transmitted information, along with the user-authentication procedures, become a very important issue. …”
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  13. 393

    Machine learning-based spectrum occupancy prediction: a comprehensive survey by Mehmet Ali Aygül, Mehmet Ali Aygül, Hakan Ali Çırpan, Hüseyin Arslan

    Published 2025-01-01
    “…Traditional statistical methods for spectrum occupancy prediction (SOP) are insufficient for addressing the non-stationary nature of spectrum occupancy, especially with UEs’ increased mobility and diversity in the sixth-generation and beyond wireless networks. This survey provides a comprehensive overview of machine learning (ML)-based SOP methods that address these challenges. …”
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  14. 394

    A Novel Analytical Framework Is Developed for Wireless Heterogeneous Networks for Video Streaming Applications by S. Kumarganesh, S. Anthoniraj, T. Senthil Kumar, P. Elayaraja, A. Christina Josephine Malathi, M. Somaskandan, Gashaw Bekele

    Published 2022-01-01
    “…Due to bandwidth and time limits, delivering high-quality video streaming facility offers real-time wireless networks, but assuring quality of experience (QoE) is rather difficult. …”
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  15. 395

    A Multihop Key Agreement Scheme for Wireless Ad Hoc Networks Based on Channel Characteristics by Zhuo Hao, Sheng Zhong, Nenghai Yu

    Published 2013-01-01
    “…Hence, they are not suitable for multihop wireless networks, in which nodes do not always have direct connections with each other. …”
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  16. 396

    Beyond Single-User Scheduling: Exploiting Massive MIMO for Concurrent Data Delivery With Minimum Age of Information by Muhammad Fahad Ijaz, Umar Rashid, Omer Waqar

    Published 2025-01-01
    “…With the emergence of real-time applications, modern wireless networks have witnessed the use of Age of Information (AoI) as a critical metric for evaluating the timeliness of data delivery. …”
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  17. 397

    MAC mechanism based on link prediction and network coding by HANGFeng-jun S, juan GONGWen, Zhe GENG

    Published 2016-01-01
    “…In the protocol improved, high-level secondary nodes around the path determined is increased by the routing module using the cast nature of wireless networks that al-ready exists rationally, so that significantly increased the network coding opportunity, without many problems caused by the concentrating flows. …”
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  18. 398

    Bildung through social media by Michael Paulsen, Jesper Tække

    Published 2019-09-01
    “…After computers, wireless networks and smartphones has entered the scene we see teaching taking place in communicatively open classrooms with possibilities of interactional contact with “outsiders.” …”
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    Article
  19. 399

    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. …”
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  20. 400

    Distortion Optimized Packet Scheduling and Prioritization of Multiple Video Streams over 802.11e Networks by Ilias Politis, Michail Tsagkaropoulos, Thomas Pliakas, Tasos Dagiuklas

    Published 2007-01-01
    “…This paper presents a generic framework solution for minimizing video distortion of all multiple video streams transmitted over 802.11e wireless networks, including intelligent packet scheduling and channel access differentiation mechanisms. …”
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