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Integrated sensing and communication (ISAC) is considered to be a promising technology for future wireless systems due to its ability to provide communication and sensing services using shared hardware and spectrum resources. Moreover, the…

信息论 · 计算机科学 2026-05-19 Nemanja Stefan Perović , Keshav Singh , Chih-Peng Li

Uplink sensing is still a relatively unexplored scenario in integrated sensing and communication which can be used to improve positioning and sensing estimates. We introduce a pilot-based maximum likelihood, and a maximum a posteriori…

信号处理 · 电气工程与系统科学 2024-06-13 Enrique T. R. Pinto , Markku Juntti

In this correspondence, we propose an unmanned aerial vehicle (UAV)-enabled integrated sensing and communication (ISAC) system, where a full-duplex UAV equipped with uniform planar array (UPA) is adopted as a base station for the multiuser…

信号处理 · 电气工程与系统科学 2024-04-11 Chaedam Son , Seongah Jeong

We propose an improved convergence analysis technique that characterizes the distributed learning paradigm of federated learning (FL) with imperfect/noisy uplink and downlink communications. Such imperfect communication scenarios arise in…

机器学习 · 计算机科学 2023-07-17 Antesh Upadhyay , Abolfazl Hashemi

The paper treats a multiuser relay scenario where multiple user equipments (UEs) have a two-way communication with a common Base Station (BS) in the presence of a buffer-equipped Relay Station (RS). Each of the uplink (UL) and downlink (DL)…

信息论 · 计算机科学 2016-09-23 Rongkuan Liu , Petar Popovski , Gang Wang

In this paper, downlink (DL) precoding and power allocation strategies are identified for a time-division-duplex (TDD) multi-cell multi-user massive Full-Dimension MIMO (FD-MIMO) network. Utilizing channel reciprocity, DL channel state…

信息论 · 计算机科学 2018-09-27 Rubayet Shafin , Lingjia Liu

To mitigate the radar and communication frequency overlapping caused by massive devices access, we propose a novel joint communication and sensing (JCS) system in this paper, where a micro base station (MiBS) can realize target sensing and…

The in-band Full Duplex (FD) technology is lately gaining attention as an enabler for the emerging paradigm of Integrated Sensing and Communications (ISAC), which envisions seamless integration of sensing mechanisms for unconnected entities…

信息论 · 计算机科学 2025-07-18 George C. Alexandropoulos , Ioannis Gavras

Integrated Sensing and Communication (ISAC) systems are recognised as one of the key ingredients of the sixth generation (6G) network. A challenging topic in ISAC is the design of a single waveform combining both communication and sensing…

The uplink (UL)/downlink (DL) decoupled access has been emerging as a novel access architecture to improve the performance gains in cellular networks. In this paper, we investigate the UL/DL decoupled access performance in cellular…

信号处理 · 电气工程与系统科学 2022-12-13 Luofang Jiao , Kai Yu , Yunting Xu , Tianqi Zhang , Haibo Zhou , Xuemin , Shen

We propose a time-division uplink transmission scheme that is applicable to future cellular systems by introducing hybrid device-to-device (D2D) and infrastructure cooperation. We analyze its spectral efficiency and outage performance and…

信息论 · 计算机科学 2024-10-30 Ahmad Abu Al Haija , Mai Vu

Integrated sensing and communication (ISAC) has recently emerged as a viable technique for establishing sensing and communication using the same resources. Nonetheless, the operation of ISAC networks is often challenged by the absence of a…

信息论 · 计算机科学 2025-04-30 Elmehdi Illi , Ahmad Bazzi , Marwa Qaraqe , Ali Ghrayeb

This paper studies a communication-centric integrated sensing and communication (ISAC) system, where a multi-antenna base station (BS) simultaneously performs downlink communication and target detection. A novel target detection and…

信息论 · 计算机科学 2024-02-21 Meng Hua , Qingqing Wu , Wen Chen , Abbas Jamalipour , Celimuge Wu , Octavia A. Dobre

Our traditional notion of a cell is changing dramatically given the increasing degree of heterogeneity in 4G and emerging 5G systems. Rather than belonging to a specific cell, a device would choose the most suitable connection from the…

网络与互联网体系结构 · 计算机科学 2014-10-28 Katerina Smiljkovikj , Hisham Elshaer , Petar Popovski , Federico Boccardi , Mischa Dohler , Liljana Gavrilovska , Ralf Irmer

The integration of sensing and communication enables wireless communication systems to serve environment-aware applications. In this paper, we propose to leverage sensing to enhance physical layer security (PLS) in multiuser communication…

信息论 · 计算机科学 2023-12-27 Dongfang Xu , Yiming Xu , Zhiqiang Wei , Shenghui Song , Derrick Wing Kwan Ng

In this paper, we combine the network-assisted full-duplex (NAFD) technology and distributed radar sensing to implement integrated sensing and communication (ISAC). The ISAC system features both uplink and downlink remote radio units (RRUs)…

信息论 · 计算机科学 2023-11-14 Fan Zeng , Jingxuan Yu , Jiamin Li , Feiyang Liu , Dongming Wang , Xiaohu You

We investigate joint localization and synchronization in the downlink of a distributed multiple-input-multiple-output (D-MIMO) system, aiming to estimate the position and phase offset of a single-antenna user equipment (UE) using downlink…

信号处理 · 电气工程与系统科学 2025-04-15 Sauradeep Dey , Musa Furkan Keskin , Dario Tagliaferri , Gonzalo Seco-Granados , Henk Wymeersch

Reliable surveillance and communication for unmanned aerial vehicles (UAVs) are crucial for enabling and sustaining the accelerated growth of the low-altitude economy. Integrated sensing and communications (ISAC) offers a cost-effective and…

信号处理 · 电气工程与系统科学 2026-04-22 Xianxin Song , Xianghao Yu , Jie Xu , Derrick Wing Kwan Ng

Orthogonal time frequency space (OTFS) modulation is a promising candidate for supporting reliable information transmission in high-mobility vehicular networks. In this paper, we consider the employment of the integrated (radar) sensing and…

信号处理 · 电气工程与系统科学 2021-12-15 Weijie Yuan , Zhiqiang Wei , Shuangyang Li , Jinhong Yuan , Derrick Wing Kwan Ng

We propose a novel framework for optimizing antenna parameter settings in a heterogeneous cellular network. We formulate an optimization problem for both coverage and capacity - in both the downlink (DL) and uplink (UL) - which configures…

信号处理 · 电气工程与系统科学 2022-10-31 Ezgi Tekgul , Thomas Novlan , Salam Akoum , Jeffrey G. Andrews