Sökning: "online communications"

Visar resultat 1 - 5 av 128 uppsatser innehållade orden online communications.

  1. 1. Digital Front End Algorithms for Sub-Band Full Duplex

    Master-uppsats, Lunds universitet/Institutionen för elektro- och informationsteknik

    Författare :Midhat Rizvi; Khaled Al-Khateeb; [2023]
    Nyckelord :Adjacent Channel Leakage Ratio; Bit Error Rate; Clipping and Filtering; Crest Factor Reduction; Digital front end; Digital Pre-Distortion Error Vector Magnitude; Frequency Division Duplex; Power Amplifier; Peak to Average Power Ratio; Peak Cancellation Crest Factor Reduction; Sub Band Full Duplex; Self-Interference Cancellation; Signal-to-Interference Noise Ratio; Signal-to-Noise Ratio; Turbo Clipping; Time Division Duplex; Technology and Engineering;

    Sammanfattning : Sub-band full duplex is a new communication scheme technology, where a single frequency band is partitioned into sub-bands for downlink (DL) and up-link(UL) transmissions, and both can take place simultaneously. The idea behind the sub-band full duplex development is to improve the throughput, and coverage and reduce the latency of the UL communication by allowing the UL reception during the DL transmission. LÄS MER

  3. 2. Du kan inte lura ett barn, eller? - En undersökning om barns skydd vid personifierad onlinereklam

    Kandidat-uppsats, Lunds universitet/Institutionen för handelsrätt

    Författare :Tomasine Cooper Ellhammar; [2023]
    Nyckelord :onlinereklam; MFL; GDPR; LEK; Barnkonventionen; DSA; TikTok; EU-kommissionen; Law and Political Science;

    Sammanfattning : With the development of digitalization, personalized online advertising has grown worldwide. This means that companies, through so-called Cookies, collect personal data about the consumer to then create online advertising based on the consumer's interests. LÄS MER

  4. 3. Simulation and Testing of a MU-MIMO Beamforming System

    Master-uppsats, Lunds universitet/Institutionen för elektro- och informationsteknik

    Författare :Nazyar Mehdishishavan; Zonghan Wang; [2023]
    Nyckelord :Multi-User Multiple-Input Multiple-Output MU-MIMO ; Beamforming; Sounding Reference Signal SRS ; Reciprocity-based; Butler matrix; Advanced Antenna System AAS ; Technology and Engineering;

    Sammanfattning : Multi-User Multiple-Input Multiple-Output (MU-MIMO) technology has become increasingly important in the field of wireless communication due to its ability to highly increase the capacity and efficiency of wireless networks [1]. Beamforming, as a technique used in MU-MIMO systems, improves network performance by improving signal quality and reducing interference. LÄS MER

  5. 4. Cell Tower Localization using crowdsourced measurments

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

    Författare :Carlos Escandón Álvarez; [2023]
    Nyckelord :Cell Tower Geolocation; Crowdsourced Measurements; Positioning; Machine Learning; Neural Networks;

    Sammanfattning : This thesis explores the application of a neural network approach to cell tower localization using crowdsourced measurements. The deployment of cell tower infrastructure has been increasing exponentially in recent times as it is a crucial element of mobile communications. LÄS MER

  7. 5. Procedures of investigation around online child sexual abuse : Comparison between Belgian and Swedish Police

    Magister-uppsats, Högskolan i Halmstad/Akademin för informationsteknologi

    Författare :Marine de Wilde d'Estmael; [2023]
    Nyckelord :;

    Sammanfattning : The primary aim of this master's thesis is to explore the differences between the methods usedby the Belgian and Swedish Police in their investigations of online child sexual abuse in orderto answer my research question “What could those specialised teams improve?” The first partof this work is theoretical and provides information on the structure of the Belgian and SwedishPolice. This will be followed by a brief discussion of the role of Europol and Interpol in thefight against child sexual abuse, as well as a short chapter on cryptography to understand howinternational communications are conducted. LÄS MER