Sökning: "Node lifetime"

Visar resultat 1 - 5 av 32 uppsatser innehållade orden Node lifetime.

  1. 1. Velocity Control of a Mobile Charger in a Wireless Rechargeable Sensor Network

    Master-uppsats, KTH/Skolan för industriell teknik och management (ITM)

    Författare :Emilia Haltorp; [2023]
    Nyckelord :Wireless Sensor Networks; Mobile Charger; Wireless Energy Transfer; Traveling Salesman Problem; Trådlösa Sensornätverk; Mobil laddare; Trådlös strömöverföring; Handelsresandeprobleme;

    Sammanfattning : Wireless sensor networks (WSN) are one of the most rapidly evolving technical areas right now. They can be used in a lot of different applications, environmental monitoring and health applications being two examples. The sensors can be placed in hazardous and remote environments since there is no need for cabling or manual maintenance. LÄS MER

  3. 2. Sustainable communicating materials

    Master-uppsats, Luleå tekniska universitet/Institutionen för system- och rymdteknik

    Författare :Diana Mustakhova; [2023]
    Nyckelord :Communicating Material; Energy Model; Wireless Sensor Network.;

    Sammanfattning : A growing number of smart items are entering our daily lives as the Internet of Things becomes increasingly prevalent. ICT device miniaturization introduces a brand-new material type called Communicating Material (CM). The term “communications material” refers to a single system that includes a material equipped with communication devices. LÄS MER

  4. 3. Modeling of an energy node

    Uppsats för yrkesexamina på avancerad nivå, Lunds universitet/Industriell elektroteknik och automation

    Författare :Peter Andersson; [2023]
    Nyckelord :Energy node; Energy storage system; Electricity generation; Battery; Hydrogen; Solar power; Wind power; electrical charging; modeling; Electric vehicles; Technology and Engineering;

    Sammanfattning : In Sweden, the demand on the electrical grid is increasing with the shift from fossil fuels to renewable energy sources. It is thereby important to optimize the charging stations for electrical vehicles connected to the grid. LÄS MER

  5. 4. Access Point Selection and Clustering Methods with Minimal Switching for Green Cell-Free Massive MIMO Networks

    Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Författare :Qinglong He; [2022]
    Nyckelord :Cell-free massive MIMO; multi-objective optimization; deep reinforcement learning; AP switch ON OFF; energy efficiency; Cellfri massiv MIMO; multiobjektiv optimering; djup förstärkningsinlärning; AP switch ON OFF; energieffektivitet;

    Sammanfattning : As a novel beyond fifth-generation (5G) concept, cell-free massive MIMO (multiple-input multiple-output) recently has become a promising physical-layer technology where an enormous number of distributed access points (APs), coordinated by a central processing unit (CPU), cooperate to coherently serve a large number of user equipments (UEs) in the same time/frequency resource. However, denser AP deployment in cell-free networks as well as an exponentially growing number of mobile UEs lead to higher power consumption. LÄS MER

  7. 5. Analysis of communication protocols used for wireless Sensor networks

    Master-uppsats, Linnéuniversitetet/Institutionen för fysik och elektroteknik (IFE)

    Författare :Racha Salim; [2021]
    Nyckelord :Wireless sensor networks; LEACH; WSN communication protocols; energy model of WSN.;

    Sammanfattning : Wireless Sensor Networks (WSNs) have attracted growing interest from both realcustomers and the scientific community in the recent years due to their powerfulcapabilities and varied applications. Each wireless sensor node relays data to thebase station (BS) directly in the direct communication protocol. LÄS MER