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In this letter, we investigate the resource allocation for downlink multi-cell coordinated OFDMA wireless networks, in which power allocation and subcarrier scheduling are jointly optimized. Aiming at maximizing the weighted sum of the…

信息论 · 计算机科学 2012-09-18 Zesong Fei , Shuo Li , Chengwen Xing , Yiqing Zhou , Jingming Kuang

We consider downlink OFDMA in which users are imposed with different proportional-rate constraints, and a base station would like to maximise user rate over subcarrier assignment (SA) and power allocation (PA). To attain the objective, we…

信息论 · 计算机科学 2017-07-24 Juthatip Wisanmongkol , Wiroonsak Santipach

This paper considers coordinated linear precoding in downlink multicell multiuser orthogonal frequency-division multiple access (OFDMA) network. A less-complex, fast and provably convergent algorithm that maximizes the weighted sum-rate…

信息论 · 计算机科学 2017-08-17 Mirza Golam Kibria , Hidekazu Murata , Susumu Yoshida

In this paper, we propose Advanced Tree-algorithm with Interference Cancellation (ATIC), a variant of binary tree-algorithm with successive interference cancellation (SICTA) introduced by Yu and Giannakis. ATIC assumes that Interference…

信息论 · 计算机科学 2025-03-04 Quirin Vogel , Yash Deshpande , Čedomir Stefanović , Wolfgang Kellerer

In this paper, the problem of uplink (UL) and downlink (DL) resource optimization, mode selection and power allocation is studied for wireless cellular networks under the assumption of in-band full duplex (IBFD) base stations,…

信息论 · 计算机科学 2017-06-20 Mohammed S. Elbamby , Mehdi Bennis , Walid Saad , Mérouane Debbah , Matti Latva-aho

Cell-free massive multiple-input multiple-output (MIMO) is an emerging technology that will reshape the architecture of next-generation networks. This paper considers the sequential fronthaul, whereby the access points (APs) are connected…

信号处理 · 电气工程与系统科学 2023-12-12 Vida Ranjbar , Robbert Beerten , Marc Moonen , Sofie Pollin

The $k$-Facility Location problem is a generalization of the classical problems $k$-Median and Facility Location. The goal is to select a subset of at most $k$ facilities that minimizes the total cost of opened facilities and established…

数据结构与算法 · 计算机科学 2017-04-25 Jarosław Byrka , Krzysztof Fleszar , Bartosz Rybicki , Joachim Spoerhase

This paper considers coordinated linear precoding for rate optimization in downlink multicell, multiuser orthogonal frequency- division multiple access networks. We focus on two different design criteria. In the first, the weighted sum-rate…

信息论 · 计算机科学 2015-06-17 Mirza Golam Kibria , Hidekazu Murata

We propose an effective interference management and beamforming mechanism for uplink communication systems that yields fair allocation of rates. In particular, we consider a hotspot area of a millimeter-wave (mmWave) access network…

网络与互联网体系结构 · 计算机科学 2021-08-10 Rafail Ismayilov , Bernd Holfeld , Renato L. G. Cavalcante , Megumi Kaneko

In this study, we propose a new method for constrained combinatorial optimization using variational quantum circuits. Quantum computers are considered to have the potential to solve large combinatorial optimization problems faster than…

量子物理 · 物理学 2025-07-15 Hyakka Nakada , Kotaro Tanahashi , Shu Tanaka

We consider a cell-free massive multiple-input multiple-output (MIMO) network utilizing a virtually full-duplex (vFD) mode, where access points (APs) with a downlink (DL) mode and those with an uplink (UL) mode simultaneously serve DL and…

信息论 · 计算机科学 2022-05-16 Mohammadali Mohammadi , Tung T. Vu , Behnaz Naderi Beni , Hien Quoc Ngo , Michail Matthaiou

Small cell networks are evolving as an economically viable solution to ameliorate the capacity and coverage of state-of-the-art wireless cellular systems. Nonetheless, the dense and unplanned deployment of the small cells (e.g., femtocells,…

信息论 · 计算机科学 2014-01-31 Hina Tabassum , Zaher Dawy , Ekram Hossain , Mohamed-Slim Alouini

Parameterized quantum circuits (PQCs) are ubiquitous in the design of hybrid quantum-classical algorithms. In this work, we propose an interpolation-based coordinate descent (ICD) method to address the parameter optimization problem in…

量子物理 · 物理学 2026-01-14 Zhijian Lai , Jiang Hu , Taehee Ko , Jiayuan Wu , Dong An

This paper is about minimum cost constrained selection of inputs and outputs for generic arbitrary pole placement. The input-output set is constrained in the sense that the set of states that each input can influence and the set of states…

最优化与控制 · 数学 2018-01-11 Shana Moothedath , Prasanna Chaporkar , Madhu N. Belur

We consider a convex unconstrained optimization problem that arises in a network of agents whose goal is to cooperatively optimize the sum of the individual agent objective functions through local computations and communications. For this…

最优化与控制 · 数学 2008-03-11 Angelia Nedić , Alex Olshevsky , Asuman Ozdaglar , John N. Tsitsiklis

We consider joint caching, routing, and channel assignment for video delivery over coordinated small-cell cellular systems of the future Internet. We formulate the problem of maximizing the throughput of the system as a linear program in…

网络与互联网体系结构 · 计算机科学 2016-05-31 Abdallah Khreishah , Jacob Chakareski , Ammar Gharaibeh

This paper investigates a hybrid radio frequency (RF)/visible light communication (VLC) ultra-small cell network consisting of multiple optical angle-diversity transmitters, one multi-antenna RF access point (AP), and multiple terminal…

This paper studies the commonly utilized windowed Anderson acceleration (AA) algorithm for fixed-point methods, $x^{(k+1)}=q(x^{(k)})$. It provides the first proof that when the operator $q$ is linear and symmetric the windowed AA, which…

数值分析 · 数学 2025-08-01 Casey Garner , Gilad Lerman , Teng Zhang

In this work, we consider the uplink of a scalable cell-free massive MIMO system where the users are served only by a subset of access points (APs) in the network. The APs are physically grouped into predetermined "cell-centric clusters",…

信息论 · 计算机科学 2021-03-10 Carmen D'Andrea , Erik G. Larsson

This work considers the multi-access caching system proposed by Hachem et al., where each user has access to L neighboring caches in a cyclic wrap-around fashion. We first propose a placement strategy called the consecutive cyclic…

信息论 · 计算机科学 2022-09-08 Jinyu Wang , Minquan Cheng , Youlong Wu