Results 51 to 60 of about 4,731,628 (237)

Convex Formulations for Antenna Array Pattern Optimization Through Linear, Quadratic, and Second-Order Cone Programming

open access: yesMathematics
This work presents a comprehensive study on formulations for the radiation pattern design of antenna arrays through convex optimization techniques, with a focus on linear, quadratic, and second-order cone programming. The proposed approaches heavily rely
Álvaro F. Vaquero, Juan Córcoles
doaj   +1 more source

Particle Swarm Optimization for Hydraulic Analysis of Water Distribution Systems [PDF]

open access: yesCivil Engineering Infrastructures Journal, 2015
The analysis of flow in water-distribution networks with several pumps by the Content Model may be turned into a non-convex optimization uncertain problem with multiple solutions.
Naser Moosavian   +1 more
doaj   +1 more source

Relatively Smooth Convex Optimization by First-Order Methods, and Applications [PDF]

open access: yesSIAM Journal on Optimization, 2016
The usual approach to developing and analyzing first-order methods for smooth convex optimization assumes that the gradient of the objective function is uniformly smooth with some Lipschitz constant $L$.
Haihao Lu, R. Freund, Y. Nesterov
semanticscholar   +1 more source

Communication and Computation Cooperation in Wireless Network for Mobile Edge Computing

open access: yesIEEE Access, 2019
The advantages of mobile edge computing (MEC) in lower energy consumption, improved bandwidth and reduced delay have attracted extensive studies. We consider a multiple smart wearable devices (SWDs) single smart mobile device (SMD) MEC system where the ...
Yang Li   +4 more
doaj   +1 more source

Information-theoretic lower bounds on the oracle complexity of stochastic convex optimization

open access: yes, 2011
Relative to the large literature on upper bounds on complexity of convex optimization, lesser attention has been paid to the fundamental hardness of these problems.
Agarwal, Alekh   +3 more
core   +5 more sources

Efficient Convex Optimization of Reentry Trajectory via the Chebyshev Pseudospectral Method

open access: yesInternational Journal of Aerospace Engineering, 2019
A novel sequential convex (SCvx) optimization scheme via the Chebyshev pseudospectral method is proposed for efficiently solving the hypersonic reentry trajectory optimization problem which is highly constrained by heat flux, dynamic pressure, normal ...
Chun-Mei Yu, Dang-Jun Zhao, Ye Yang
doaj   +1 more source

Optimal Energy-Delay in Energy Harvesting Wireless Sensor Networks with Interference Channels

open access: yesSensors, 2019
In this work, we investigate the capacity allocation problem in the energy harvesting wireless sensor networks (WSNs) with interference channels. For the fixed topologies of data and energy, we formulate the optimization problem when the data flow ...
Dongbin Jiao   +3 more
doaj   +1 more source

Joint Transceiver Optimization for Multiuser Multi-Antenna Relay Systems With Energy Harvesting

open access: yesIEEE Access, 2019
In this paper, a multiuser multi-antenna relay system with wireless power transfer is investigated, where the relay node harvests energy from the radio frequency signal sent from the source node and utilizes the harvested energy to forward the ...
Jinlong Wang   +4 more
doaj   +1 more source

Polyhedral approximation in mixed-integer convex optimization

open access: yes, 2017
Generalizing both mixed-integer linear optimization and convex optimization, mixed-integer convex optimization possesses broad modeling power but has seen relatively few advances in general-purpose solvers in recent years.
Bent, Russell   +3 more
core   +1 more source

A Sparse Representation-Based Deployment Method for Optimizing the Observation Quality of Camera Networks

open access: yesSensors, 2013
Deployment is a critical issue affecting the quality of service of camera networks. The deployment aims at adopting the least number of cameras to cover the whole scene, which may have obstacles to occlude the line of sight, with expected observation ...
Guangming Shi   +3 more
doaj   +1 more source

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