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Showing result 1 - 5 of 16 essays matching the above criteria.

  1. 1. Ray-tracing Based Investigations on the Deployment of RISs in Indoor Scenarios

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

    Author : Swaroop Divya Sai Prem Nambala; Dexin Kong; [2023]
    Keywords : Reconfigurable intelligent surface; RIS; optimization; Ray-tracing; Mixed integer linear programming MILP ; Complex impulse response; Wireless Insite.; Technology and Engineering;

    Abstract : Reconfigurable intelligence surface (RIS) is a promising candidate technology for future 6G wireless communication systems. In existing communication systems, the network operators are unable to control the propagation environment, which causes significant limitations on communication performance. READ MORE

  3. 2. Ultra-wideband location tracking of mobile devices

    University essay from Uppsala universitet/Signaler och system

    Author : Daniel Hietarinta; [2022]
    Keywords : UWB; ultra-wideband; GPS; tracking; locating; wireless communication; low-power; embedded systems; mobile devices; OTG; sensors; sensor fusion; mobile app; Android; dynamic anchors; ranging; C; Python;

    Abstract : Today’s most widely used tracking solutions for consumers involve the Global Positioning System (GPS) which meets most needs when it comes to rough estimation of location. GPS however is limited in accuracy with a horizontal error of around 5 meters and cannot be used in the areas where the satellites cannot provide a strong enough signal e.g. READ MORE

  4. 3. Power Focusing with Intelligent Reflective Surfaces for Wireless Indoor Communication Systems

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

    Author : Mingye Gong; [2021]
    Keywords : Intelligent Reflective Surfaces IRS ; 6G; MISO; Wireless Indoor Communication Systems; Technology and Engineering;

    Abstract : Intelligent reflective surfaces (IRS) are envisioned to have a significant number of applications in future wireless network systems by reconfiguring the signal propagation to improve system performance. In particular, the IRS's cell elements can independently reflect the incident signal by tuning its phase and achieving passive beamforming to enhance the received signal of the user equipment. READ MORE

  5. 4. Bluetooth Low Energy Industrial Sensor

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

    Author : Lamiaa Riad; Haithem Elhesseawy; [2018]
    Keywords : Bluetooth; BLE; Sensor; IoT; RSSI; Machines; Path Loss; Line of Sight; Mesh Network; Non Line of Sight; Technology and Engineering;

    Abstract : Industrial Internet of Things (IIoT) market is rapidly growing and expected to further expand in the incoming years. To keep up with such a fast pace, new wireless technologies need to be developed to accommodate the huge number of devices expected to connect to the internet. READ MORE

  6. 5. Network Densification and Energy Efficiency

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

    Author : Sarthak Das; [2018]
    Keywords : Cell Sleep; Densification; Efficiency; Energy; Energy Model; FPLC; HetNet; Lean Carrier; LTE; Macro; Micro Sleep; OFDM; Power Model; PSI; Traffic; Technology and Engineering;

    Abstract : The galloping pace of development in the field of wireless communication has left the world astounded over the last decade. But this has also led to a wild and inexcusable extravagant expenditure of energy. READ MORE