Sökning: "physical-layer impairments"
Visar resultat 1 - 5 av 6 avhandlingar innehållade orden physical-layer impairments.
1. Autoencoders for Physical-Layer Communications: Approaches and Applications
Sammanfattning : The ever-growing demand for higher data rates has driven continuous developments in communication systems over the years. As upcoming high-bandwidth services require even higher data rates, future digital communication infrastructures must undergo continuous upgrades to provide increased capacity. LÄS MER
2. Provisioning Strategies for Transparent Optical Networks Considering Transmission Quality, Security, and Energy Efficiency
Sammanfattning : The continuous growth of traffic demand driven by the brisk increase in number of Internet users and emerging online services creates new challenges for communication networks. The latest advances in Wavelength Division Multiplexing (WDM) technology make it possible to build Transparent Optical Networks (TONs) which are expected to be able to satisfy this rapidly growing capacity demand. LÄS MER
3. Study of physical layer impairments in high speed optical networks
Sammanfattning : The work done in this thesis focuses on the impact of transmission impairments in high speed optical networks. Specifically it focuses on the impact of nonlinear impairments in long haul fiber optic data transmission. LÄS MER
4. Optimization, Design, and Analysis of Flexible-Grid Optical Networks with Physical-Layer Constraints
Sammanfattning : The theme of this thesis is the optimization, design, and analysis of flexible-grid optical networks that are constrained by physical-layer impairments (PLIs). We consider three flexible-grid network scenarios. LÄS MER
5. Performance Analysis of Cognitive Radio Networks under Spectrum Sharing and Security Constraints
Sammanfattning : The cognitive radio network (CRN) concept has been proposed as a solution to the growing demand and underutilization of the radio spectrum. To improve the radio spectrum utilization, CRN technology allows the coexistence of licensed and unlicensed systems over the same spectrum. LÄS MER