Essays about: "wireless channel"

Showing result 11 - 15 of 299 essays containing the words wireless channel.

  1. 11. Low-Power Global Time Synchronization for the Contiki-NG Operating System

    University essay from Uppsala universitet/Institutionen för informationsteknologi

    Author : Arnis Gustins; [2023]
    Keywords : ;

    Abstract : Time synchronization is a well-known problem in low-power embedded wireless networks. While many synchronization protocols exist, usually they are not standard-compliant or do not provide synchronization of a global calendar time which is required by many applications, such as event correlation and certificate validation. READ MORE

  3. 12. On GPU Assisted Polar Decoding : Evaluating the Parallelization of the Successive Cancellation Algorithmusing Graphics Processing Units

    University essay from Karlstads universitet/Institutionen för matematik och datavetenskap (from 2013)

    Author : Siri Nordqvist; [2023]
    Keywords : 5G; NR; New Radio; Polar Codes; Channel Decoding; Successive Cancellation; NVIDIA; GPU; CUDA; 5G; New Radio NR ; Polärkoder; Kanalavkodning; Successive Cancellation SC ; NVIDIA; Graphics Processing Unit GPU ; Compute Unified Device Architecture CUDA ;

    Abstract : In telecommunication, messages sent through a wireless medium often experience noise interfering with the signal in a way that corrupts the messages. As the demand for high throughput in the mobile network is increasing, algorithms that can detectand correct these corrupted messages quickly and accurately are of interest to the industry. READ MORE

  4. 13. Machine Learning-based MIMO Indoor Positioning

    University essay from Lunds universitet/Institutionen för elektro- och informationsteknik

    Author : Qiyi Chen; [2023]
    Keywords : Technology and Engineering;

    Abstract : The most widely used positioning system is Global Navigation Satellite System (GNSS), which uses traditional positioning techniques and cannot achieve satisfactory positioning performance in indoor scenarios due to Non-Line-of-Sight (NLoS) transmission. Fingerprinting is a non-traditional positioning technique that is robust to NLoS transmission in indoor scenarios. READ MORE

  5. 14. Initial access for 5G mmWave private networks

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Mei Li; [2023]
    Keywords : Private Network; Initial Access; Millimeter-Wave; Ray Tracing; Cell Search; Random Beamforming; Privat nätverk; Initial Access; Millimeter-Wave; Ray Tracing; Cell Search; Random Beamforming;

    Abstract : This research delves into wireless communication systems, with a particular focus on initial access processes, channel modeling, and beamforming strategies. The study involves meticulous channel data collection across diverse urban, suburban, and rural terrains, each presenting unique propagation challenges. READ MORE

  6. 15. Fault-Tolerant Over-the-Air Federated Learning with Clustered Aggregation : Using a hierarchical architecture with hybrid digital and analog communication, to deal with byzantine users in Federated Learning over wireless networks.

    University essay from Linköpings universitet/Kommunikationssystem

    Author : David Nordlund; [2023]
    Keywords : federated learning; aircomp;

    Abstract : Rapid advancements in modern AI applications have placed unprecedented demands on large-scale connectivity and data aggregation. The vision of Internet-of-Things (IoT) is supported by a massive amount of distributed sensors and wireless devices that generate useful data for these applications. READ MORE