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In this paper, we investigate integrated sensing and communication (ISAC) in high-mobility systems with the aid of an intelligent reflecting surface (IRS). To exploit the benefits of Delay-Doppler (DD) spread caused by high mobility,…

信息论 · 计算机科学 2024-08-01 Xingyu Peng , Qin Tao , Xiaoling Hu , Richeng Jin , Chongwen Huang , Xiaoming Chen

The fifth generation of wireless communications (5G) promises massive increases in traffic volume and data rates, as well as improved reliability in voice calls. Jointly optimizing beamforming, power control, and interference coordination…

网络与互联网体系结构 · 计算机科学 2020-01-01 Faris B. Mismar , Brian L. Evans , Ahmed Alkhateeb

Beamforming design for intelligent reflecting surface (IRS)-assisted multi-user communication (IRS-MUC) systems critically depends on the acquisition of accurate channel state information (CSI). However, channel estimation (CE) in IRS-MUC…

信号处理 · 电气工程与系统科学 2022-11-24 Chang Liu , Xuemeng Liu , Zhiqiang Wei , Derrick Wing Kwan Ng , Robert Schober

Dynamic spectrum access (DSA) benefits from detection and classification of interference sources including in-network users, out-network users, and jammers that may all coexist in a wireless network. We present a deep learning based signal…

网络与互联网体系结构 · 计算机科学 2019-09-27 Yi Shi , Kemal Davaslioglu , Yalin E. Sagduyu , William C. Headley , Michael Fowler , Gilbert Green

Reconfigurable intelligent surface (RIS) is a revolutionary technology for sixth-generation (6G) networks owing to its ability to manipulate wireless environments. As a frequency-selective device, RIS can only effectively shape the…

信息论 · 计算机科学 2022-11-01 Sifan Liu , Rang Liu , Ming Li , Yang Liu , Qian Liu

In this paper, we address inter-beam inter-cell interference mitigation in 5G networks that employ millimeter-wave (mmWave), beamforming and non-orthogonal multiple access (NOMA) techniques. Those techniques play a key role in improving…

网络与互联网体系结构 · 计算机科学 2021-03-10 Medhat Elsayed , Kevin Shimotakahara , Melike Erol-Kantarci

Millimeter-wave (mmWave) communications provide access to spectra with bandwidths and in abundance. However, the high susceptibility of mmWave to blockage imposes crucial challenges, especially to low-latency services. In this paper, a…

信号处理 · 电气工程与系统科学 2021-04-20 Yashuai Cao , Tiejun Lv , Zhipeng Lin , Wei Ni

Due to the rapid densification of small cells in 5G and beyond cellular networks, deploying wired high-bandwidth connections to every small cell base station is difficult, particularly in older metropolitan areas where infrastructure for…

网络与互联网体系结构 · 计算机科学 2020-10-27 Yuchen Liu , Qiang Hu , Douglas M. Blough

To support the modern machine-type communications, a crucial task during the random access phase is device activity detection, which is to detect the active devices from a large number of potential devices based on the received signal at…

信息论 · 计算机科学 2021-12-21 Yang Li , Zhilin Chen , Yunqi Wang , Chenyang Yang , Yik-Chung Wu

Dynamic Metasurface Antennas (DMAs) are transforming reconfigurable antenna technology by enabling energy-efficient, cost-effective beamforming through programmable meta-elements, eliminating the need for traditional phase shifters and…

In this paper, we study data-aided sensing (DAS) for distributed detection in wireless sensor networks (WSNs) when sensors' measurements are correlated. In particular, we derive a node selection criterion based on the J-divergence in DAS…

信息论 · 计算机科学 2020-11-18 Jinho Choi

Integrated Sensing and Communication (ISAC) systems promise to revolutionize wireless networks by concurrently supporting high-resolution sensing and high-performance communication. This paper presents a novel radio access technology (RAT)…

信号处理 · 电气工程与系统科学 2024-10-16 Yulan Gao , Ziqiang Ye , Ming Xiao , Yue Xiao

New millimeter-wave wireless communication systems can be strongly impacted by the blockage introduced by the human body. At 60 GHz, the coverage of these systems is relatively limited due to high propagation losses. Thus, beamforming…

信号处理 · 电气工程与系统科学 2025-01-16 Mbissane Dieng , Gheorghe I. Zaharia , Ghaïs El Zein

Integrated sensing and communication (ISAC) is a promising paradigm for future wireless systems due to spectrum reuse, hardware sharing, and joint waveform design. In dynamic scenes, Doppler shifts degrade both sensing and communication,…

信号处理 · 电气工程与系统科学 2025-12-04 Yuan Liu , Wen-Xuan Long , M. R. Bhavani Shankar , Marco Moretti , Rui Chen , Björn Ottersten

In this paper, we consider joint antenna allocation and transmit beamforming design in secure integrated sensing and communication (ISAC) systems. A dual-function base station (DFBS) aims to securely deliver messages to a single-antenna…

网络与互联网体系结构 · 计算机科学 2024-10-03 Yunxiang Shi , Lixin Li , Wensheng Lin , Wei Liang , Zhu Han

Orthogonal time frequency space (OTFS) modulation stands out as a promising waveform for sixth generation (6G) and beyond wireless communication systems, offering superior performance over conventional methods, particularly in high-mobility…

信号处理 · 电气工程与系统科学 2026-01-21 Emin Akpinar , Emir Aslandogan , Burak Ahmet Ozden , Haci Ilhan , Erdogan Aydin

Joint radar-communications (JRC) benefits from multi-functionality of radar and communication operations using same hardware and radio frequency (RF) spectrum resources. Thus JRC systems possess very high potential to be employed into the…

信号处理 · 电气工程与系统科学 2022-11-17 Aryan Kaushik , Evangelos Vlachos , Muhammad Z. Shakir , Wonjae Shin , Rongke Liu

Millimeter-wave (mmWave) communications rely on directional transmissions to overcome severe path loss. Nevertheless, the use of narrow beams complicates the initial access procedure and increase the latency as the transmitter and receiver…

信息论 · 计算机科学 2018-12-04 Yanpeng Yang , Hossein S. Ghadikolaei , Carlo Fischione , Marina Petrova , Ki Won Sung

The implementation of integrated sensing and communication (ISAC) highly depends on the effective beamforming design exploiting accurate instantaneous channel state information (ICSI). However, channel tracking in ISAC requires large amount…

信息论 · 计算机科学 2022-02-09 Chang Liu , Weijie Yuan , Shuangyang Li , Xuemeng Liu , Derrick Wing Kwan Ng , Yonghui Li

This paper investigates the integrated sensing and communication (ISAC) in vehicle-to-infrastructure (V2I) networks. To realize ISAC, an effective beamforming design is essential which however, highly depends on the availability of accurate…

信号处理 · 电气工程与系统科学 2022-04-28 Chang Liu , Weijie Yuan , Shuangyang Li , Xuemeng Liu , Husheng Li , Derrick Wing Kwan Ng , Yonghui Li