Sökning: "Zero forcing"
Visar resultat 11 - 15 av 23 avhandlingar innehållade orden Zero forcing.
11. Organiseringens dynamik : Strukturskapande processer i ett telematikföretag
Sammanfattning : Organization studies are transforming, changing focus from static entities to dynamic,organizational processes. Some critics point out that contemporary literature has not observednor specified these processes. The concepts lack thorough descriptions of the content of theprocesses. They do not account for the ordinary-but. LÄS MER
12. Adaptation in multiple input multiple output systems with channel state information at transmitter
Sammanfattning : This thesis comprises two parts: the first part presents channel-adaptive techniques to achieve high spectral efficiency in a single user multiple-input multiple-output (MIMO) system; the second part exhibits a programmable and reconfigurable software-defined-radio orkbench(SDR-WB) in the Matlab/Octave environment that accommodates a variety of wireless applications. In an attempt to achieve high spectral efficiency, an adaptive modulation technique is applied at the transmitter to vary the data rate depending on the channel state information (CSI). LÄS MER
13. MIMO Systems with Residual Hardware Impairments
Sammanfattning : Recent years have witnessed an unprecedented explosion in mobile data traffic, due to the expansion of numerous types of wireless devices, which have enabled a plethora of data-hungry applications. Novel techniques, such as large-scale multiple-input multiple-output (MIMO) systems, represent potential candidates to support the ever-growing demands. LÄS MER
14. Performance Analysis of Massive MIMO in Non-Ideal Settings
Sammanfattning : Recent years have witnessed an unprecedented explosion in mobile data traffic, due to the expansion of numerous types of wireless devices, which have enabled a plethora of data-hungry applications. Novel techniques, such as massive multiple-input multiple-output (MIMO) systems, represent potential candidates to support these formidable demands. LÄS MER
15. Coverage Analysis and Cooperative Hybrid Precoding for 5G Cellular Networks
Sammanfattning : 5G innovations have been made in both the network deployment and the transceiver architectures in order to increase coverage, energy- and spectrum-efficiency. Future base stations (BSs) are expected to be densely deployed in places such as walls and lamp posts and cover a smaller area compared to current macro BS systems. LÄS MER