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In this paper we consider a distributed optimization scenario in which a set of processors aims at cooperatively solving a class of min-max optimization problems. This set-up is motivated by peak-demand minimization problems in smart grids.…

最优化与控制 · 数学 2016-11-29 Ivano Notarnicola , Mauro Franceschelli , Giuseppe Notarstefano

We consider the problem of controlling the group behavior of a large number of dynamic systems that are constantly interacting with each other. These systems are assumed to have identical dynamics (e.g., birds flock, robot swarm) and their…

最优化与控制 · 数学 2021-08-18 Yongxin Chen

In this paper, we optimize the energy efficiency (bits/s/Hz/J) of device-to-multi-device (D2MD) wireless communications. While the device-to-device scenario has been extensively studied to improve the spectral efficiency in cellular…

网络与互联网体系结构 · 计算机科学 2019-08-19 Mariem Hmila , Manuel Fernández-Veiga , Miguel Rodríguez-Pérez , Sergio Herrería-Alonso

Motivated by an emerging framework of Autonomous Modular Vehicles, we consider the abstract problem of optimally routing two modules, i.e., vehicles that can attach to or detach from each other in motion on a graph. The modules' objective…

最优化与控制 · 数学 2023-02-13 Karan Jagdale , Melkior Ornik

This paper presents the formulation and analysis of a two time-scale optimization algorithm for multi-agent coordination for the purpose of distributed beamforming. Each agent is assumed to be randomly positioned with respect to each other…

信号处理 · 电气工程与系统科学 2019-09-25 Jemin George , Anjaly Parayil , He Bai

Design of energy efficient protocols for modern wireless systems has become an important area of research. In this paper, we propose a distributed optimization algorithm for the channel assignment problem for multiple interfering…

网络与互联网体系结构 · 计算机科学 2018-02-16 Oshri Naparstek , S. M. Zafaruddin , Amir Leshem , Eduard Jorswieck

We study the half-duplex multiple-relay channel (HD-MRC) where every node can either transmit or listen but cannot do both at the same time. We obtain a capacity upper bound based on a max-flow min-cut argument and achievable transmission…

信息论 · 计算机科学 2012-12-04 Lawrence Ong , Mehul Motani , Sarah J. Johnson

We study the problem of optimal traffic prediction and monitoring in large-scale networks. Our goal is to determine which subset of K links to monitor in order to "best" predict the traffic on the remaining links in the network. We consider…

数据结构与算法 · 计算机科学 2013-12-04 Michael Kallitsis , Stilian Stoev , George Michailidis

Community detection is a fundamental problem in computational sciences with extensive applications in various fields. The most commonly used methods are the algorithms designed to maximize modularity over different partitions of the network…

社会与信息网络 · 计算机科学 2023-06-27 Samin Aref , Mahdi Mostajabdaveh , Hriday Chheda

Distributionally robust optimization (DRO) can improve the robustness and fairness of learning methods. In this paper, we devise stochastic algorithms for a class of DRO problems including group DRO, subpopulation fairness, and empirical…

机器学习 · 计算机科学 2025-02-03 Tasuku Soma , Khashayar Gatmiry , Sharut Gupta , Stefanie Jegelka

We derive a fast and optimal algorithm for solving practical weighted max-min SINR problems in cell-free massive MIMO networks. For the first time, the optimization problem jointly covers long-term power control and distributed beamforming…

信息论 · 计算机科学 2022-09-01 Lorenzo Miretti , Renato Luis Garrido Cavalcante , Slawomir Stanczak

We study the problem of maximizing the broadcast rate in peer-to-peer (P2P) systems under \emph{node degree bounds}, i.e., the number of neighbors a node can simultaneously connect to is upper-bounded. The problem is critical for supporting…

网络与互联网体系结构 · 计算机科学 2012-06-20 Shaoquan Zhang , Ziyu Shao , Minghua Chen , Libin Jiang

We approach the hidden subgroup problem by performing the so-called pretty good measurement on hidden subgroup states. For various groups that can be expressed as the semidirect product of an abelian group and a cyclic group, we show that…

量子物理 · 物理学 2007-05-23 Dave Bacon , Andrew M. Childs , Wim van Dam

We first conceive a novel transmission protocol for a multi-relay multiple-input--multiple-output orthogonal frequency-division multiple-access (MIMO-OFDMA) cellular network based on joint transmit and receive beamforming. We then address…

信息论 · 计算机科学 2015-03-04 Kent Tsz Kan Cheung , Shaoshi Yang , Lajos Hanzo

A generalization of recent group-theoretic matrix multiplication algorithms to an analogue of the theory of partial matrix multiplication is presented. We demonstrate that the added flexibility of this approach can in some cases improve…

计算复杂性 · 计算机科学 2009-02-17 Richard Strong Bowen , Bo Chen , Hendrik Orem , Martijn van Schaardenburg

Full-duplex (FD) systems have emerged as an es- sential enabling technology to further increase the data rate of wireless communication systems. The key idea of FD is to serve multiple users over the same bandwidth with a base station (BS)…

信息论 · 计算机科学 2017-02-07 Van-Dinh Nguyen , Hieu V. Nguyen , Chuyen T. Nguyen , Oh-Soon Shin

We investigate the optimal model reduction problem for large-scale quadratic-bilinear (QB) control systems. Our contributions are threefold. First, we discuss the variational analysis and the Volterra series formulation for QB systems. We…

数值分析 · 数学 2017-05-17 Peter Benner , Pawan Goyal , Serkan Gugercin

The problem of distributed rate maximization in multi-channel ALOHA networks is considered. First, we study the problem of constrained distributed rate maximization, where user rates are subject to total transmission probability…

网络与互联网体系结构 · 计算机科学 2015-05-25 Kobi Cohen , Amir Leshem

This paper investigates how to mitigate the impact of both co-channel interference and adjacent channel interference (ACI) on vehicle-to-vehicle (V2V) broadcast communication by scheduling and power control. The optimal joint scheduling and…

信息论 · 计算机科学 2018-12-21 Anver Hisham , Erik G. Ström , Fredrik Brännström , Li Yan

In our paper we consider the Cell Formation Problem in Group Technology with grouping efficiency as an objective function. We present a heuristic approach for obtaining high-quality solutions of the CFP. The suggested heuristic applies an…

离散数学 · 计算机科学 2017-02-24 Ilya Bychkov , Mikhail Batsyn , Panos M. Pardalos