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相关论文: Discrete Codebook Design for Self-interference Sup…

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This work addresses the radio resource management (RRM) design in downlink full-duplex integrated sensing and communications (ISAC) systems, jointly optimizing timeslot allocation and beam selection under imperfect self-interference…

信号处理 · 电气工程与系统科学 2025-10-23 Luis F. Abanto-Leon , Setareh Maghsudi

In intelligent reflecting surface (IRS) assisted communication, beam search is usually time-consuming as the multiple-input multiple-output (MIMO) of IRS is usually very large. Hierarchical codebooks is a widely accepted method for reducing…

信息论 · 计算机科学 2023-08-04 Xiyuan Liu , Qingqing Wu , Die Hu , Rui Wang , Jun Wu

In this paper, we investigate a self-sensing intelligent reflecting surface (IRS) aided millimeter wave (mmWave) integrated sensing and communication (ISAC) system. Unlike the conventional purely passive IRS, the self-sensing IRS can…

信号处理 · 电气工程与系统科学 2023-11-15 Zijian Chen , Ming-Min Zhao , Min Li , Fan Xu , Qingqing Wu , Min-Jian Zhao

The integration of sensing and communication (ISAC) is a key enabler for next-generation technologies. With high-frequency bands and large-scale antenna arrays, the Rayleigh distance extends, necessitating near-field (NF) models where waves…

信号处理 · 电气工程与系统科学 2025-12-25 Yinchao Yang , Jingxuan Zhou , Zhaohui Yang , Mohammad Shikh-Bahaei

Integrated sensing and communication (ISAC) is expected to be offered as a fundamental service in the upcoming sixth-generation (6G) communications standard. However, due to the exposure of information-bearing signals to the sensing…

信号处理 · 电气工程与系统科学 2023-05-09 Vaibhav Kumar , Marwa Chafii , A. Lee Swindlehurst , Le-Nam Tran , Mark F. Flanagan

In order to improve the ability of cognitive radar (CR) to adapt to the environment, the required ambiguity function (AF) can be synthesized by designing the waveform. The key to this problem is how to minimize the interference power.…

信号处理 · 电气工程与系统科学 2022-09-09 Haoyu Yi , Xinyu Zhang , Weidong Jiang , Kai Huo

In full-duplex millimeter-wave (mmWave) systems, the effects of beam squint and the frequency-selectivity of self-interference exacerbate over wide bandwidths. This complicates the use of beamforming to cancel self-interference when…

信号处理 · 电气工程与系统科学 2024-11-07 Sungho Cho , Ian P. Roberts

Recently, reconfigurable intelligent surface (RIS) has immensely been deployed to overcome blockage issue and widen coverage for enabling superior performance 6G networks. Mainly, systems use RIS as an assistant to redirect the transmitter…

信号处理 · 电气工程与系统科学 2023-06-26 Ahmed M. Nor , S. S. Sefati , Octavian Fratu , Simona Halunga

Achieving effective uplink bistatic ISAC over an OFDM waveform gives rise to challenging interference structures. These are mostly due to unequal direct- and echo-path contributions and Doppler-induced ICI, rendering orthogonal resource…

信号处理 · 电气工程与系统科学 2026-05-22 Bruno F. Costa , Anup Mishra , Israel Leyva-Mayorga , Taufik Abrão , Petar Popovski

Integrated sensing and communications (ISAC) as one of the key technologies is capable of supporting high-speed communication and high-precision sensing for the upcoming 6G. This paper studies a waveform strategy by designing the orthogonal…

信号处理 · 电气工程与系统科学 2024-11-13 Ming Lyu , Hao Chen , Dan Wang , Guangyin Feng , Chen Qiu , Xiaodong Xu

Physical layer security (PLS) is an important technology in wireless communication systems to safeguard communication privacy and security between transmitters and legitimate users. The integration of large-scale antenna arrays (LSAA) and…

信号处理 · 电气工程与系统科学 2025-11-20 Weijie Xiong , Jingran Lin , Zhiling Xiao , Qiang Li

Intelligent reflecting surface (IRS) is a promising new paradigm to achieve high spectral and energy efficiency for future wireless networks by reconfiguring the wireless signal propagation via passive reflection. To reap the potential…

信息论 · 计算机科学 2022-10-26 Ming-Min Zhao , Qingqing Wu , Min-Jian Zhao , Rui Zhang

Sparse coding is an unsupervised learning algorithm that learns a succinct high-level representation of the inputs given only unlabeled data; it represents each input as a sparse linear combination of a set of basis functions. Originally…

机器学习 · 计算机科学 2012-06-26 Roger Grosse , Rajat Raina , Helen Kwong , Andrew Y. Ng

This paper investigates the problem of increasing the security at the physical layer of a Millimeter Wave (mmWave) network equipped with several Intelligent Reflecting Surfaces (IRSs). In this network, multiple IRSs help the Base Station…

信息论 · 计算机科学 2021-10-07 Anahid Rafieifar , S. Mohammad Razavizadeh

This paper considers a reconfigurable intelligent surface (RIS)-aided millimeter wave (mmWave) downlink communication system where hybrid analog-digital beamforming is employed at the base station (BS). We formulate a power minimization…

信息论 · 计算机科学 2022-02-15 Renwang Li , Bei Guo , Meixia Tao , Ya-Feng Liu , Wei Yu

The full-duplex (FD) communication can achieve higher spectrum efficiency than conventional half-duplex (HD) communication; however, self-interference (SI) is the key hurdle. This paper is the first work to propose the intelligent Omni…

信息论 · 计算机科学 2022-08-22 Sisai Fang , Gaojie Chen , Pei Xiao , Kai-Kit Wong , Rahim Tafazolli

This paper proposes methods that can optimize a Convolutional BeamFormer (CBF) for jointly performing denoising, dereverberation, and source separation (DN+DR+SS) in a computationally efficient way. Conventionally, cascade configuration…

音频与语音处理 · 电气工程与系统科学 2020-08-04 Tomohiro Nakatani , Christoph Boeddeker , Keisuke Kinoshita , Rintaro Ikeshita , Marc Delcroix , Reinhold Haeb-Umbach

In this paper, we formalize an optimization framework for analog beamforming in the context of monostatic integrated sensing and communication (ISAC), where we also address the problem of self-interference in the analog domain. As a result,…

信号处理 · 电气工程与系统科学 2024-04-16 Rodrigo Hernangómez , Jochen Fink , Renato L. G. Cavalcante , Zoran Utkovski , Sławomir Stańczak

Integrated sensing and communication (ISAC) is viewed as a key technology in future wireless networks. One of the main challenges in realizing ISAC is developing dual-functional waveforms that can communicate with communication receivers…

信号处理 · 电气工程与系统科学 2024-05-01 Kecheng Zhang , Weijie Yuan , Pingzhi Fan , Xianbin Wang

Millimeter wave (mmWave) and terahertz MIMO systems rely on pre-defined beamforming codebooks for both initial access and data transmission. Being pre-defined, however, these codebooks are commonly not optimized for specific environments,…

信息论 · 计算机科学 2021-02-24 Yu Zhang , Muhammad Alrabeiah , Ahmed Alkhateeb