Results 21 to 30 of about 2,097 (305)

Spectral Efficiency Enhancement for Reconfigurable Intelligent Surface Assisted MIMO System

open access: yesWasit Journal of Engineering Sciences, 2022
Reconfigurable intelligent surfaces (RISs) have emerged as promising contenders for enabling sixth-generation (6G) physical wireless platforms. RISs fine-tune wireless networks to optimize the spectrum and energy use.
Intisar AL-Shaeli, lsmail Hburi
doaj   +1 more source

Optimal natural dualities. II: General theory [PDF]

open access: yesTransactions of the American Mathematical Society, 1996
A general theory of optimal natural dualities is presented, built on the test algebra technique introduced in an earlier paper. Given that a set R R of finitary algebraic relations yields a duality on a class of algebras A = I S
Davey, B. A., Priestley, H. A.
openaire   +2 more sources

Duality theory for optimal investments under model uncertainty [PDF]

open access: yesStatistics & Decisions, 2005
Robust utility functionals arise as numerical representations of investor preferences, when the investor is uncertain about the underlying probabilistic model and averse against both risk and model uncertainty. In this paper, we study the the duality theory for the problem of maximizing the robust utility of the terminal wealth in a general incomplete ...
Alexander Schied, Ching-Tang Wu
openaire   +3 more sources

Optimizing Resource Allocation for 6G NOMA-Enabled Cooperative Vehicular Networks

open access: yesIEEE Open Journal of Intelligent Transportation Systems, 2021
In recent years, the concept of non-orthogonal multiple access (NOMA) has gathered much attention due to its potential to offer high spectral efficiency, present user fairness and grant free access to sixth generation (6G) vehicular networks.
Zain Ali   +5 more
doaj   +1 more source

Robust Bi-Level Optimization for Maritime Emergency Materials Distribution in Uncertain Decision-Making Environments

open access: yesMathematics, 2023
Maritime emergency materials distribution is a key aspect of maritime emergency responses. To effectively deal with the challenges brought by the uncertainty of the maritime transport environment, the multi-agent joint decision-making location-routing ...
Cong Wang, Zhongxiu Peng, Wenqing Xu
doaj   +1 more source

Optimality and duality in set-valued optimization utilizing limit sets

open access: yesOpen Mathematics, 2018
This paper deals with optimality conditions and duality theory for vector optimization involving non-convex set-valued maps. Firstly, under the assumption of nearly cone-subconvexlike property for set-valued maps, the necessary and sufficient optimality ...
Kong Xiangyu, Zhang Yinfeng, Yu GuoLin
doaj   +1 more source

Robust Optimization of Power Grid Investment Decision-Making Considering Regional Development Stage Uncertainties

open access: yesShanghai Jiaotong Daxue xuebao, 2023
Aimed at the problem of uncertainties in the regional development stage and the difficulties in quantifying regional investment demand in different development stages, a robust optimization method for power grid investment decision-making considering ...
HUANG Wandi, ZHANG Shenxi, CHENG Haozhong, CHEN Dan, ZHAI Xiaomeng, WU Shuang
doaj   +1 more source

Gap functions for quasi-variational inequalities via duality

open access: yesJournal of Inequalities and Applications, 2018
This paper deals with an application of duality theory in optimization to the construction of gap functions for quasi-variational inequalities. The same approach was investigated for variational inequalities and equilibrium problems in (Pac. J. Optim.
L Altangerel
doaj   +1 more source

Joint resource optimization algorithm based on queue stability

open access: yesDianzi Jishu Yingyong, 2018
To achieve the dynamic allocation of multiple resources and improve the resource utilization with ensuring the queue stability, the paper proposes a joint resource optimization algorithm based on queue stability in wireless virtualized networks ...
Hu Xiaodong   +3 more
doaj   +1 more source

Dual S-matrix bootstrap. Part I. 2D theory

open access: yesJournal of High Energy Physics, 2020
Using duality in optimization theory we formulate a dual approach to the S-matrix bootstrap that provides rigorous bounds to 2D QFT observables as a consequence of unitarity, crossing symmetry and analyticity of the scattering matrix. We then explain how
Andrea L. Guerrieri   +2 more
doaj   +1 more source

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