Results 11 to 20 of about 2,868,808 (318)
Real Spectrum Versus ℓ-Spectrum via Brumfiel Spectrum [PDF]
Algebras and Representation Theory, 2021 It is well known that the real spectrum of any commutative unital ring, and the ${\ell}$-spectrum of any Abelian lattice-ordered group with order-unit, are all completely normal spectral spaces. We prove the following results: (1) Every real spectrum can be embedded, as a spectral subspace, into some ${\ell}$-spectrum. (2) Not every real spectrum is an
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Spectrum matching in licensed spectrum sharing [PDF]
Transactions on Emerging Telecommunications Technologies, 2018 AbstractSpectrum sharing is one of the promising solutions to meet the spectrum demand in fifth‐generation networks that results from the emerging services like machine‐to‐machine and vehicle‐to‐infrastructure communication. The idea is to allow a set of entities to access the spectrum whenever and wherever it is unused by the licensed users.
M. Majid Butt +5 more
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Spectrum Trading for Efficient Spectrum Utilization [PDF]
EAI Endorsed Transactions on Wireless Spectrum, 2014 The conventional command and control based spectrum management has led to substantial underutilization of some spectrum bands while severely crowding others due to the uneven and dynamic needs that vary over time and at different locations. Spectrum trading has emerged as a promising management approach to substantially improve spectrum utilization and
Cong Xiong +5 more
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Local spectrum and generalized spectrum [PDF]
Proceedings of the American Mathematical Society, 1991 This paper provides the proofs of those results announced in [ 5 , §
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Journal of Cardiothoracic Surgery, 2023 Background Patients infrequently mobilize at the surgical ward after cardiac surgery. Inactivity results in prolonged hospital stay, readmissions and increased cardiovascular mortality. Next, the course of in-hospital mobilization activities for patients
Frank R. Halfwerk +4 more
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Practical Evaluation Method of Large Size IRS: Synthesis of Reflection Pattern of Sub-IRS
IEEE Access, 2023 Intelligent reflecting surfaces (IRSs) have been attracting attention as a solution to coverage hole problems in millimeter-wave communication areas and are considered one of the key technologies of next-generation mobile communication systems.
Hiromi Matsuno +3 more
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Annales Academiae Scientiarum Fennicae Mathematica, 2018 Fil: Da Silva, Joao Vitor. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Matemática; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Investigaciones Matemáticas "Luis A. Santaló".
Rossi, Julio Daniel +2 more
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Cogent Education, 2015 Children diagnosed with autism spectrum disorder often have restricted verbal communication. For children who do not use functional speech, augmentative and alternative communication (AAC) devices can be an important support.
Mary-Ann Naguib Bedwani +2 more
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Spectrum Patrolling With Crowdsourced Spectrum Sensors
IEEE Transactions on Cognitive Communications and Networking, 2020 We use a crowdsourcing approach for RF spectrum patrolling, where heterogeneous, low-cost spectrum sensors are deployed widely and are tasked with detecting unauthorized transmissions while consuming only a limited amount of resources. We pose this as a signal detection problem where the individual sensor’s detection performance may vary widely based ...
Arani Bhattacharya +4 more
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