Global ETD Search
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Showing 1 to 5 of 5 for “"joint spectrum."”.
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Positive traces and analytic Langlands correspondence
… Langlands dual group. On the other side there is joint spectrum of certain operators on L²(Bun subscript G), called Hecke operators, where Bun subscript G is the variety of stable parabolic G-bundles on X and L²(Bun subscript G) is a Hilbert space of square-integrable half-densities. We prove most …
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Cross-Layer Optimization and Distributed Algorithm Design for Frequency-Agile Radio Networks
… in frequency-agile radio technology and dynamic spectrum access network have created a huge space for improving the utilization efficiency of wireless spectrum. Existing algorithms and protocols, however, have not taken full advantage of the new technologies due to obsolete network design …
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Design and Performance Analysis of Next Generation Heterogeneous Cellular Networks for the Internet of Things
… device data rate utility function under both spectrum allocation schemes, full spectrum reuse (FSR) and orthogonal spectrum partition (OSP), for uplink two-hop IoT networks. We develop constraint gradient ascent optimization algorithms to obtain the optimal aggregator association bias (for the …
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Spectrum management in cognitive radio wireless networks
The wireless spectrum is currently regulated by government agencies and is assigned to license holders or services on a long-term basis over vast geographical regions. Recent research has shown that a large portion of the assigned spectrum is used sporadically, leading to underutilization and waste …
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Toroidal Matrix Links: Local Matrix Homotopies and Soft Tori
In this document we solve some local connectivity problems in matrix representations of the form C(T^N) -> M_n and C(T^N) -> M_n <- C([-1, 1]^N) using the so called toroidal matrix links, which can be interpreted as normal contractive matrix analogies of free homotopies in algebraic topology. In …