Sökning: "HAPs"
Hittade 5 uppsatser innehållade ordet HAPs.
1. Antenna Options for High Altitude IMT Base Stations (HIBS) in Cellular Networks
Master-uppsats, Luleå tekniska universitet/Institutionen för system- och rymdteknikSammanfattning : This thesis is the result of a collaboration between Ericsson AB and Luleå University of Technology. A feasibility study has been conducted to investigate antenna options for the HIBS access link. The study contains two parts. Firstly, a link budget investigating the gain required from the antenna. LÄS MER
2. Positioning in Non-Terrestrial Networks
Master-uppsats, Lunds universitet/Institutionen för elektro- och informationsteknikSammanfattning : In 5G communications, Non-terrestrial Network (NTN) is envisioned to complement Terrestrial Network (TN) to increase network availability, scalability and continuity. Positioning of User Equipment (UE) is critical for the operation of NTN. Currently, NTN uses Global Navigation Satellite System (GNSS) for positioning. LÄS MER
3. Improving the System Performance of High Altitude Platforms Serving Suburban Areas
Master-uppsats, Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskapSammanfattning : High Altitude Platforms (HAP) has been evolving to make a new history in wireless communications infrastructure. A number of applications and services have been proposed for HAP based communications which advance HAP over terrestrial and satellite infrastructure for future communications. LÄS MER
4. STRATOSHPHERIC CHANNEL MODELLING
Magister-uppsats, Blekinge Tekniska Högskola/Avdelningen för signalbehandlingSammanfattning : High Altitude Platform Stations (HAPs) are communication facilities situated at an altitude of 17 to 30 km and at a specified, nominal, fixed point relative to the Earth. They are mostly solar-powered, unmanned, and remotely-operated. LÄS MER
5. Stratospheric Propagation And HAPs Channel Modeling
Magister-uppsats, Blekinge Tekniska Högskola/Avdelningen för telekommunikationssystemSammanfattning : High Altitude Platform Stations (HAPs) are communication facilities situated at an altitude of 20 to 50 km and at a specified, nominal, fixed point relative to the Earth. They are mostly solar-powered, unmanned, and remotely-operated. LÄS MER