15 research outputs found
ADMM-based Subcarrier Allocation and Power Control for Uplink OFDMA Channels
No full textIn this paper, the problem of subcarrier allocation and power control for uplink orthogonal frequency division multiple access (OFDMA) channels is studied. Each user may have a different strategy of power control due to his/her own limits of battery, quality-of-service (QoS) requirement, and the amount of information to transmit. The problem is first formulated as a minimization problem, and the alternating direction method of multipliers (ADMM) is then introduced to solve the problem in a distributed manner. Necessary conditions of each subproblem are derived to obtain a deeper understanding in the structure of the solutions. Numerical results show that the algorithm converges fast and obtains a near-optimal solution within only a few iterations
Some Problems of Development of New Areas in Industrially Developed Capitalist Countries (as Illustrated by the Canadian Far West)
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Investigation of Water Tree Degradation in Dry-Cured and Extruded Three-Layer (E-E Type) 6.6-kV Removed XLPE Cables
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Iron and infection: narrative review of a major iron supplementation study in Papua New Guinea undertaken by the Department of Tropical Paediatrics, Liverpool School of Tropical Medicine, 1979–1983, its aftermath and the continuing relevance of its results
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Vested interests as driver of the clean energy transition: Evidence from Russia's solar energy policy
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