Sökning: "radio series"
Visar resultat 16 - 20 av 97 avhandlingar innehållade orden radio series.
16. On the Performance of Underlay Cognitive Radio Networks with Interference Constraints and Relaying
Sammanfattning : Efficiently allocating the scarce and expensive radio resources is a key challenge for advanced radio communication systems. To this end, cognitive radio (CR) has emerged as a promising solution which can offer considerable improvements in spectrum utilization. LÄS MER
17. On Parameter Estimation : Applications in Radio Astronomy and Power Networks
Sammanfattning : Signal processing is a common part of the modern society used to obtain high functionality in a vast number of applications. As the development of advanced electronics and powerful computers continue, the limit of the functionality in many systems is increased. LÄS MER
18. 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
19. A Spectrum Decision Support System for Cognitive Radio Networks
Sammanfattning : Cognitive Radio Networks (CRNs) offer a promising capability of alleviating the problem of spectrum insufficiency. In CRNs, the licensed spectrum channels are either exclusively reserved for licensed users or temporarily used by unlicensed users. The requirement for unlicensed users is to not harmfully impair the licensed users transmissions. LÄS MER
20. High-resolution radio imaging of galaxy nuclei
Sammanfattning : Star formation and galaxy evolution are intimately linked together. A detailed understanding of the environment where stars form may help us explain the differences we see between galaxies today and at earlier times in the history of the Universe. LÄS MER