Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 16 of 16 for “"SDMA"”.
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Modelo de toma de decisiones y aprendizaje en sistemas multi-agente
… de Sistema de Decisión MultiAgente (SDMA) que permite esta integración de sistemas de toma de decisión autónomos, y que consta de: una arquitectura, un modelo de agente, un lenguaje de comunicación entre agentes, un algoritmo de toma de decisión distribuida y un algoritmo de …
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Developing and Using Methyl-Specific Antibodies to Study The Biological Roles of Arginine Methylation
… (ADMA), symmetric dimethylarginine (SDMA), and monomethylarginine (MMA). These modifications are catalyzed by a family of nine protein arginine methyltransferases (PRMT1-9), which are of three types (I, II, and III). The majority of Type I enzymes asymmetrically dimethylate Glycine- …
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A Study of The Snd1/Prmt5 Axis In Liver Cancer By Genetic Mouse Models
… that catalyzes symmetric dimethyl arginine (SDMA) and requires methylosome protein 50 (MEP50) for stability and enzymatic activity which are necessary for life and development. Effector proteins bind different types of PTM’s to facilitate signaling. Staphylococcal nuclease Tudor domain …
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Conception d'une antenne intelligente à faisceau commutable assistée par un système de locaisation des mobiles
… que la dimension spatiale, via la technique SDMA (Space Division Multiple Access) à exploiter. Un système de communication sans fil doté de la technique SDMA via un réseau d'antennes est capable de multiplier la capacité et d'améliorer l'efficacité spectrale. Ce mémoire traite l'impact des …
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Integrated broadband microphotonic beamformer for adaptive nulling in smart antennas
… is also known as Space Division Multiple Access (SDMA). SDMA systems allow significant improvement in the area of capacity, signal bandwidth, signal-to-interference ratio, and frequency reuse. Due to the increasing complexity of the smart antennas system, innovations and improvements in …
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Near-capacity co-located and distributed MIMO systems
… a multiuser space divisionmultiple access (SDMA) uplink system designed for an interference-limited scenario, where the multiple access interference (MAI) significantly degrades the overall system performance. For the sake of supporting rank-deficient overloaded systems, a maximum …
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Exploiting Spatial Degrees-of-Freedom for Energy-Efficient Next Generation Cellular Systems
… access (OFDMA)/space division multiple access (SDMA) downlink transmission from DASs. Grouping-based SDMA is applied to exploit the spatial diversity while avoiding performance degradation from correlated channels. The developed scheme considers the impact of both system data rate and effective …
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Low-complexity near-optimum detection techniques for non-cooperative and cooperative MIMO systems
… devoted to Spatial Division Multiple Accessing (SDMA) aided Orthogonal Frequency Division Multiplexing (OFDM) systems, which are considered to constitute a promising candidate for next-generation mobile communications.<br/>It is widely recognized that the conventional List SD (LSD) employed in …
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Kinetic Characterization, Inhibition, and Activity-Based Protein Profiling of Protein Arginine Methyltransferase 1
… form symmetrically dimethylated arginine (SDMA). The predominant member of the PRMT family is PRMT1, as it is responsible for approximately 85% of the arginine methylation in mammalian cells. Since PRMT1 exhibits type I activity, it is the primary producer of the competitive NOS inhibitor, …
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Exploring the role of the arginine-methylation writer-reader pair PRMT5/SND1 in JAK2-mutant myeloproliferative neoplasms
… for reading the symmetric dimethyl-arginine (SDMA) marks deposited by PRMT5, underpinning a potential critical role in MPN pathogenesis and treatment. SND1 is the only human protein known to contain the Staphylococcal nuclease-like domain, making it a uniquely promising therapeutic target for …
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Optimal Hybrid MIMO Beamforming Designs for Energy-Efficient Communication Systems
… of CAP-MIMO with space division multiple access (SDMA) and time division multiple access (TDMA) approaches. The third chapter presents the energy efficiency formulation for CAP-MIMO, also utilizing EIT, and analyzes simulation results to validate the proposed methodologies. Ultimately, this thesis …
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Fountain codes for the wireless Internet
… coded Spatial Division Multiple Access (LT-SDMA) scenario considered. The thesis also investigates the potential of Systematic Luby Transform (SLT) codes using soft-bit decoding and analyses their Bit Error Ratio (BER) performance using EXtrinsic Information Transfer (EXIT) charts. SLT codes …
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Towards self-organizing wireless networks
… (and intra-cell) interference coordination in SDMA-based cellular networks. Based on a local maximization of a network-wide utility function over average user rates, the proposed algorithms autonomously adapt the transmit power budgets of particular resources. Using system-level simulations, we …
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OFDM turbo transceivers
… to a multi-user Space Division MultipleAccess (SDMA) OFDM scheme. Novel turbo MUDs are designed and investigated in terms of their complexity, EXIT characteristics and BER performance. More explicitly, the linear turbo MUDs considered include the Complex-valued Minimum Mean Square Error …
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Parallele Prozessarchitektur für die Raum-Zeit-Entzerrung in breitbandigen Funksystemen mit adaptiven Gruppenantennen
Spatial multiplexing with adaptive antenna arrays will by applied to increase the data rate in future broadband radio systems. For an economic implementation of the required signal processing there is a demand for highly efficient parallel processors. Transformation in the frequency domain enables …