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This paper addresses the antenna subset selection in multiple antenna systems with full diversity transmission, for both correlated and uncorrelated channels. To reduce the severe performance degradation of traditional selection/combining schemes, we propose to embed phase-shift-only operations in the RF chains before selection. The resulting system shows a significant advantage in utilizing the m
The key adaptive techniques are automatic tuning, gain scheduling and continuous adaptation. This paper describes how these techniques are used for industrial process control When implementing the ideas in products, it is particularly important to make the systems so that they can be used by ordinary plant personnel. Some ways to achieve this are discussed.
Popular Abstract in Swedish Denna avhandling tar sin utgångspunkt i frågor kring markförstörelse och minskad bördighet inom småskaligt jordbruk i Afrika söder om Sahara. Genom empirisk forskning bland småbrukare i Tororo i sydöstra Uganda pekar avhandlingen på olika former av kollektiva strategier på lokal nivå för att hantera förändrade försörjningsvillkor. I en ansats att samproducera kunskap meProceeding from land degradation and soil fertility decline in sub-Saharan African smallholder agriculture and drawing on empirical research with smallholder farmers in Tororo district in south-eastern Uganda (2010-2012), this thesis identifies local collective strategies in response to changing livelihood conditions. In an attempt to co-produce knowledge with a transformative potential, the thesi
Recent research on the Book of Psalms has been dealing intensively with issues relating to its so called “final shape." Proceeding from, among others, an influential dissertation by Gerald H Wilson, scholars have argued that the collection, as it now stands, is “more than the sum of its parts” (so e.g. McCann). Although such a notion is fairly straight forward on a conceptual or general level, it
