Sökning: "Union bounds"

Visar resultat 1 - 5 av 9 avhandlingar innehållade orden Union bounds.

  1. 1. Bounds on Hilbert Functions

    Författare :Ornella Greco; Mats Boij; Aldo Conca; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Hilbert Functions; Commutative Algebra;

    Sammanfattning : This thesis is constituted of two articles, both related to Hilbert functions and h-vectors. In the first paper, we deal with h-vectorsof reduced zero-dimensional schemes in the projective plane, and, in particular, with the problem of finding the possible h-vectors for the union of two sets of points of given h-vectors. LÄS MER

  3. 2. Adaptive Concatenated Coding for Wireless Real-Time Communications

    Författare :Elisabeth Uhlemann; Högskolan i Halmstad; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; Incremental redundancy hybrid ARQ; Multiple concatenated codes; Iterative decoding; Rate compatible punctured codes; Union bounds; EXIT charts; Convergence analysis; Wireless real-time communication; Quality of service; TECHNOLOGY; TEKNIKVETENSKAP;

    Sammanfattning : The objective of this thesis is to improve the performance of real-time communication overa wireless channel, by means of specifically tailored channel coding. The deadlinedependent coding (DDC) communication protocol presented here lets the timeliness and thereliability of the delivered information constitute quality of service (QoS) parametersrequested by the application. LÄS MER

  4. 3. Bounds on Hilbert Functions and Betti Numbers of Veronese Modules

    Författare :Ornella Greco; Mats Boij; Maria Evelina Rossi; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Hilbert function; Betti numbers; Veronese modules; Pinched veronese; h-vectors; Mathematics; Matematik;

    Sammanfattning : The thesis is a collection of four papers dealing with Hilbert functions and Betti numbers.In the first paper, we study the h-vectors of reduced zero-dimensional schemes in  . In particular we deal with the problem of findingthe possible h-vectors for the union of two sets of points of given h-vectors. LÄS MER

  5. 4. Trade, Unemployment and Labour Market Institutions

    Författare :Jaewon Kim; Ann-Sofie Kolm; Anders Forslund; Stockholms universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; unemployment; labour market institutions; openness; trade; external risk; ethnic fractionalisation; panel data analysis; meta-regression analysis; extreme-bounds analysis; Economics; Nationalekonomi; Economics; nationalekonomi;

    Sammanfattning : The thesis consists of three papers, summarized as follows.        "The Determinants of Labour Market Institutions: A Panel Data Study"    This paper analyses the argument that labour market institutions can be thought of as devices for social insurance. LÄS MER

  7. 5. Multiantenna Wireless Architectures with Low Precision Converters

    Författare :Yasaman Ettefagh; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; massive MIMO; fronthaul link; normal approximation; random coding union bound with parameter s; data converters; outage probability;

    Sammanfattning : One of the main key technology enablers of the next generation of wireless communications is massive multiple input multiple output (MIMO), in which the number of antennas at the base station (BS) is scaled up to the order of tens or hundreds. It provides considerable energy and spectral efficiency by spatial multiplexing, which enables serving multiple user equipments (UEs) on the same time and frequency resource. LÄS MER