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Visar resultat 1 - 5 av 29 avhandlingar som matchar ovanstående sökkriterier.
1. Revisiting the OFDM Guard Interval for Reduced Interference and Out-of-Band Emission
Sammanfattning : .... LÄS MER
2. Spectrally Precoded OFDM-Design and Analysis
Sammanfattning : Despite shifting towards mm-wave bands, the sub-6 GHz band will continue to be a fundamental spectral band in 5G. However, the severe congestion in this band makes a well-constrained spectrum a critical requirementof 5G. LÄS MER
3. Out of the Dark and into the Light - Microscopic Analysis of Bright, Dark and Trapped Excitons
Sammanfattning : Atomically thin transition metal dichalcogenides (TMDs) have been in the focus of current research due to their efficient light-matter interaction, as well as the remarkably strong Coulomb interaction that leads to tightly bound excitons. Due to their unique band structure, TMDs show a variety of optically accessible bright and inaccessible dark excitons. LÄS MER
4. Electrical Characterisation of III-V Nanowire MOSFETs
Sammanfattning : The ever increasing demand for faster and more energy-efficient electricalcomputation and communication presents severe challenges for the semiconductor industry and particularly for the metal-oxidesemiconductorfield-effect transistor (MOSFET), which is the workhorse of modern electronics. III-V materials exhibit higher carrier mobilities than the most commonly used MOSFET material Si so that the realisation of III-V MOSFETs can enable higher operation speeds and lower drive voltages than that which is possible in Si electronics. LÄS MER
5. Design, Analysis and Prototyping of Spectrally Precoded OFDM
Sammanfattning : Despite shifting towards mm-wave bands, the sub 6-GHz band will continue tobe a fundamental spectral band in 5G. Yet, the severe crowdedness of this bandmakes a well constrained spectrum one of the critical 5G requirements. LÄS MER