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Macro placement is the problem of placing memory blocks on a chip canvas. It can be formulated as a combinatorial optimization problem over sequence pairs, a representation which describes the relative positions of macros. Solving this…

Sensor placement optimization methods have been studied extensively. They can be applied to a wide range of applications, including surveillance of known environments, optimal locations for 5G towers, and placement of missile defense…

机器学习 · 计算机科学 2024-05-22 Lukas Taus , Yen-Hsi Richard Tsai

Cooperative communication using unmanned aerial vehicles (UAVs) is a promising technology for infrastructureless wireless networks. One of the key challenges in UAV based communications is the backhaul throughput. In this paper, we propose…

信号处理 · 电气工程与系统科学 2018-11-07 Samer Hanna , Han Yan , Danijela Cabric

The joint base station (BS) association and beamforming problem has been studied extensively in recent years, yet the computational complexity for even the simplest SISO case has not been fully characterized. In this paper, we consider the…

信息论 · 计算机科学 2015-12-16 Wei Liu , Ruoyu Sun , Zhi-Quan Luo , Jiandong Li

We consider the positioning problem in non line-of-sight (NLoS) situations, where several base stations (BS) try to locate a user equipment (UE) based on uplink angle of arrival (AoA) measurements and a digital twin of the environment. Ray…

信息论 · 计算机科学 2024-08-22 Vincent Corlay , Viet-Hoa Nguyen , Nicolas Gresset

Sensing is anticipated to have wider extensions in communication systems with the boom of non-terrestrial networks (NTNs) during the past years. In this paper, we study a bistatic sensing system by maximizing the…

信号处理 · 电气工程与系统科学 2024-09-26 Xiangyu Li , Bodong Shang , Qingqing Wu

Due to the ultra-dense constellation, efficient beam coverage and interference mitigation are crucial to low-earth orbit (LEO) satellite communication systems, while the conventional directional antennas and fixed-position antenna (FPA)…

信息论 · 计算机科学 2024-04-25 Lipeng Zhu , Xiangyu Pi , Wenyan Ma , Zhenyu Xiao , Rui Zhang

Directional transmission patterns (a.k.a. narrow beams) are the key to wireless communications in millimeter wave (mmWave) frequency bands which suffer from high path loss and severe shadowing. In addition, the propagation channel in mmWave…

信息论 · 计算机科学 2020-05-29 Abbas Khalili , Shahram Shahsavari , Mohammad A. Amir Khojastepour , Elza Erkip

The integration of Low Earth Orbit (LEO) satellite constellations into 5G and Beyond is essential to achieve efficient global connectivity. As LEO satellites are a global infrastructure with predictable dynamics, a pre-planned fair and…

网络与互联网体系结构 · 计算机科学 2022-11-14 Israel Leyva-Mayorga , Vineet Gala , Federico Chiariotti , Petar Popovski

The burgeoning and ubiquitous deployment of the Internet of Things (IoT) landscape struggles with ultra-low latency demands for computation-intensive tasks in massive connectivity scenarios. In this paper, we propose an innovative uplink…

网络与互联网体系结构 · 计算机科学 2026-02-10 Yuang Chen , Fengqian Guo , Chang Wu , Mingyu Peng , Hancheng Lu , Chang Wen Chen

Movable antenna (MA) systems have recently attracted significant attention in the field of wireless communications owing to their exceptional capability to proactively reconfigure wireless channels via flexible antenna movements. In this…

信号处理 · 电气工程与系统科学 2025-07-22 Nianzu Li , Peiran Wu , Lipeng Zhu , Weidong Mei , Boyu Ning , Derrick Wing Kwan Ng

This paper studies the improvement of the achievable end-to-end data rate of ground users assisted with unmanned aerial vehicles (UAVs) and tethered balloons (TBs). The goal is to maximize the end-to-end throughput of a network suffering…

网络与互联网体系结构 · 计算机科学 2019-12-10 Ala Alzidaneen , Ahmad Alsharoa , Mohamed-Slim Alouini

We consider the problem of coordinated multi- cell downlink beamforming in massive multiple input multiple output (MIMO) systems consisting of N cells, Nt antennas per base station (BS) and K user terminals (UTs) per cell. Specifically, we…

信息论 · 计算机科学 2015-04-09 Subhash Lakshminarayana , Mohamad Assaad , Merouane Debbah

UV-parameterized Gaussian Splatting (UVGS) maps an unstructured set of 3D Gaussians to a regular UV tensor, enabling compact storage and explicit control of representation capacity. Existing UVGS, however, uses a deterministic spherical…

图形学 · 计算机科学 2026-04-22 Byunghyun Kim

This paper considers a Massive multiple-input multiple-output (MIMO) network, where the base station (BS) with a large number of antennas communicates with a smaller number of users. The signals are transmitted using frequency division…

信息论 · 计算机科学 2018-04-24 Manijeh Bashar , Alister G. Burr , Katsuyuki Haneda Kanapathippillai Cumanan

Electric vehicles face significant energy supply challenges due to long charging times and congestion at charging stations. Battery swapping stations (BSSs) offer a faster alternative for energy replenishment, but their deployment costs are…

最优化与控制 · 数学 2024-12-23 Guangyuan Liu , Yu Zhang , Tianshi Ming , Chunlong Yu

Fluid antennas (FAs) and movable antennas (MAs) have attracted increasing attention in wireless communications recently. As compared to the conventional fixed-position antennas (FPAs), their geometry can be dynamically reconfigured, such…

信号处理 · 电气工程与系统科学 2024-08-26 Dong Wang , Weidong Mei , Boyu Ning , Zhi Chen

Unmanned Aerial Vehicle (UAV) networks have emerged as a promising technique to rapidly provide wireless coverage to a geographical area, where a flying UAV can be fast deployed to serve as cell site. Existing work on UAV-enabled wireless…

网络与互联网体系结构 · 计算机科学 2021-09-01 Xiao Zhang , Lingjie Duan

In this paper, a novel joint design of beamforming and power allocation is proposed for a multi-cell multiuser multiple-input multiple-output (MIMO) non-orthogonal multiple access (NOMA) network. In this network, base stations (BSs) adopt…

信息论 · 计算机科学 2018-06-13 Xiaofang Sun , Nan Yang , Shihao Yan , Zhiguo Ding , Derrick Wing Kwan Ng , Chao Shen , Zhangdui Zhong

With the rapid development in mobile network effective network planning tool is needed to satisfy the need of customers. However, deciding upon the optimum placement for the base stations (BS) to achieve best services while reducing the…

网络与互联网体系结构 · 计算机科学 2015-07-19 Lamiaa Fattouh Ibrahim , Manal El Harby