Search for dissertations about: "Spatial Multiplexing"
Showing result 1 - 5 of 44 swedish dissertations containing the words Spatial Multiplexing.
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1. MIMO Channels - Measurements and Analysis
Abstract : Providing increased transmission speed, quality and an efficient spectrum utilization is crucial for high speed wireless services of today and the future. This thesis is a collection of papers that address an important step in that direction -- the utilization of the spatial domain of the wireless channel. READ MORE
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2. 60 GHz Wireless Propagation Channels: Characterization, Modeling and Evaluation
Abstract : To be able to connect wirelessly to the internet is nowadays a part of everyday life and the number of wireless devices accessing wireless networks worldwide are increasing rapidly. However, with the increasing number of wireless devices and applications and the amount available bandwidth, spectrum shortage is an issue. READ MORE
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3. Mobile Satellite Broadcast and Multichannel Communications : analysis and design
Abstract : In this thesis, analytical analysis and design techniques for wireless communications with diversity are studied. The impact of impairments such as correlated fading is analyzed using statistical models. Countermeasures designed to overcome, or even exploit, such effects are proposed and examined. READ MORE
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4. Multiple Antenna Terminals in Realistic Environments - A Composite Channel Modeling Approach
Abstract : For evaluation of specific antenna arrangements in wireless communication systems we need physical channel models that take into account also the directional domain of the propagation channel. In this thesis we investigate, validate and propose a practical approach to wireless channel modeling and, particularly, to mobile communication systems. READ MORE
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5. Spatial Resource Allocation in Massive MIMO Communications : From Cellular to Cell-Free
Abstract : Massive MIMO (multiple-input multiple-output) is considered as an heir of the multi-user MIMO technology and it has gained lots of attention from both academia and industry since the last decade. By equipping base stations (BSs) with hundreds of antennas in a compact array or a distributed manner, this new technology can provide very large multiplexing gains by serving many users on the same time-frequency resources and thereby bring significant improvements in spectral efficiency (SE) and energy efficiency (EE) over the current wireless networks. READ MORE