Sökning: "radio mobile"

Visar resultat 1 - 5 av 339 uppsatser innehållade orden radio mobile.

1. 1. Mätningar av internetkapacitet, tillförlitlighet och fördröjning i ett Stockholmsbaserat Starlink-system : En undersökning av hur satellitinternet kan bidra till att ökateckningsgrad i Sverige

   M1-uppsats, KTH/Hälsoinformatik och logistik

   Författare :Niclas Höglund; [2024]
   Nyckelord :Starlink; LEO; wireless; satellite; internet; ground stations; tele operators; Ku -band; Ka-band; Starlink; LEO; trådlös; satellit; internet; markstationer; teleoperatörer; Ku -bandet; Ka-bandet;

   Sammanfattning : Det är mycket dyrt att utveckla markinfrastruktur för att försörja hela jorden med internet. Detta ärspeciellt fallet i glesbebyggda områden då det finns lite ekonomisk vinning. Sverige som är ett stortoch glesbefolkat land har stora områden av denna typ. LÄS MER

3. 2. 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

4. 3. Integrated Sensing and Communicationusing OFDM and Stepped FMCWSignals : Proof-of-Concept and Evaluation with Software DefinedRadios

   Master-uppsats, Blekinge Tekniska Högskola/Fakulteten för datavetenskaper

   Författare :Sai Chetan Poluri; Tejaswi Dunuka; [2023]
   Nyckelord :5G and 6G Communications; FMCW; GNU Radio; ISAC; OFDM; SDR; Sensing; JSAC;

   Sammanfattning : The thesis work shows the implementation of sensing and communication, so a basic knowledge of analog and digital communication systems is needed to understand this paper Background. With the increase in smart devices, the bandwidth requirements are increased, which created congestion in the radio spectrum resources. LÄS MER

5. 4. Estimation of Parabolic Microwave Antenna Movements Using Sensor Fusion

   Uppsats för yrkesexamina på avancerad nivå, Lunds universitet/Institutionen för reglerteknik

   Författare :Nikhil Challa; [2023]
   Nyckelord :Technology and Engineering;

   Sammanfattning : Wireless communication has seamlessly integrated itself into our daily lives, with Ericsson pioneering the development of comprehensive mobile ecosystems. As the demand for data traffic continues to surge, the enhancement of both cellular radio systems and backhaul infrastructure remains paramount. LÄS MER

7. 5. AI Based Methods for Matrix Multiplication in High Resolution Simulations of Radio Access Networks

   Master-uppsats, KTH/Matematisk statistik

   Författare :Marcus Johnson; Herman Forslund; [2023]
   Nyckelord :Product-Quantization; MADDNESS; Radio Access Networks; Channel Estimation; MIMO; Approximate Matrix Multiplication; Pruduktkvantisering; MADDNESS; RAN; MIMO; Approximativa matrismultiplikation;

   Sammanfattning : The increasing demand for mobile data has placed significant strain on radio access networks (RANs), leading to a continuous need for increased network capacity. In keeping with that, a significant advancement in modern RANs is the ability to utilize several receivers and transmitters, to allow for beamforming. LÄS MER