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相关论文: IANS: Intelligibility-aware Null-steering Beamform…

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In this paper, we investigate an intelligent reflecting surface (IRS)-assisted millimeter-wave multiple-input single-output downlink wireless communication system. By jointly calculating the active beamforming at the base station and the…

信息论 · 计算机科学 2022-03-11 Wencai Yan , Gangcan Sun , Wanming Hao , Zhengyu Zhu , Zheng Chu , Pei Xiao

Intelligent reflecting surfaces (IRSs) enable multiple-input multiple-output (MIMO) transmitters to modify the communication channels between the transmitters and receivers. In the presence of eavesdropping terminals, this degree of freedom…

信息论 · 计算机科学 2022-02-03 Saba Asaad , Yifei Wu , Ali Bereyhi , Ralf R. Müller , Rafael F. Schaefer , H. Vincent Poor

In this work, we consider the Direction-of-Arrival (DOA) estimation problem in a low-cost architecture where only one antenna as the receiver is aided by a reconfigurable intelligent surface (RIS). We introduce the one-bit RIS as a signal…

信号处理 · 电气工程与系统科学 2022-12-14 Zihan Yang , Peng Chen , Ziyu Guo , Dahai Ni

The integration of backscatter communication (BackCom) technology with integrated sensing and communication (ISAC) technology not only enhances the system sensing performance, but also enables low-power information transmission. This is…

信号处理 · 电气工程与系统科学 2024-11-04 Zongyao Zhao , Yuhan Dong , Tiankuo Wei , Xinke Tang , Xiao-Ping Zhang , Zhenyu Liu

Intelligent reflecting surface (IRS) is a new and disruptive technology to achieve spectrum- and energy-efficient as well as cost-efficient wireless networks. This paper considers an IRS-assisted downlink non-orthogonal-multiple-access…

信息论 · 计算机科学 2020-01-01 Gang Yang , Xinyue Xu , Ying-Chang Liang

We introduce a new method for robust beamforming, where the goal is to estimate a signal from array samples when there is uncertainty in the angle of arrival. Our method offers state-of-the-art performance on narrowband signals and is…

信号处理 · 电气工程与系统科学 2024-06-25 Nakul Singh , Coleman DeLude , Mark A. Davenport , Justin Romberg

Large intelligent surface (LIS) has emerged as a promising new solution to improve the energy and spectrum efficiency of wireless networks. A LIS, composed of a large number of low-cost and energy-efficient reconfigurable passive reflecting…

信息论 · 计算机科学 2019-08-09 Wenjing Yan , Xiaoyan Kuai , Xiaojun Yuan

The concept of reconfiguring wireless propagation environments using intelligent reflecting surfaces (IRS)s has recently emerged, where an IRS comprises of a large number of passive reflecting elements that can smartly reflect the impinging…

The spectrum shift from the sub-6G band to the high-frequency band has posed an ever-increasing demand on the paradigm shift from narrowband beamforming to wideband beamforming. Despite recent research efforts, the problem of wideband…

计算工程、金融与科学 · 计算机科学 2024-07-09 Xiaowei Qian , Xiaoling Hu , Chenxi Liu , Mugen Peng

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

Amodal Instance Segmentation (AIS) aims to segment the region of both visible and possible occluded parts of an object instance. While Mask R-CNN-based AIS approaches have shown promising results, they are unable to model high-level…

计算机视觉与模式识别 · 计算机科学 2024-03-19 Minh Tran , Khoa Vo , Kashu Yamazaki , Arthur Fernandes , Michael Kidd , Ngan Le

This paper investigates a simultaneously transmitting and reflecting reconfigurable intelligent surface (STARS)-aided integrated sensing and communication (ISAC) systems in support of full-space energy-efficient data transmissions and…

信号处理 · 电气工程与系统科学 2025-11-20 Li-Hsiang Shen , Yi-Hsuan Chiu

Beam alignment is essential to compensate for the high path loss in the millimeter-wave (mmWave) Unmanned Aerial Vehicle (UAV) network. The integrated sensing and communication (ISAC) technology has been envisioned as a promising solution…

信号处理 · 电气工程与系统科学 2023-06-29 Yanpeng Cui , Qixun Zhang , Zhiyong Feng , Fan Liu , Ce Shi , Jinpo Fan , Ping Zhang

Wearable devices like smart glasses are approaching the compute capability to seamlessly generate real-time closed captions for live conversations. We build on our recently introduced directional Automatic Speech Recognition (ASR) for smart…

音频与语音处理 · 电气工程与系统科学 2024-01-22 Ju Lin , Niko Moritz , Yiteng Huang , Ruiming Xie , Ming Sun , Christian Fuegen , Frank Seide

End-to-end neural TTS has shown improved performance in speech style transfer. However, the improvement is still limited by the available training data in both target styles and speakers. Additionally, degenerated performance is observed…

声音 · 计算机科学 2022-01-25 Xiaochun An , Frank K. Soong , Lei Xie

Text-to-Speech (TTS) models have advanced significantly, aiming to accurately replicate human speech's diversity, including unique speaker identities and linguistic nuances. Despite these advancements, achieving an optimal balance between…

音频与语音处理 · 电气工程与系统科学 2024-08-28 Jinhyeok Yang , Junhyeok Lee , Hyeong-Seok Choi , Seunghun Ji , Hyeongju Kim , Juheon Lee

In this study, we have presented a novel approach to predict the Short-Time Objective Intelligibility (STOI) metric using a bottleneck transformer architecture. Traditional methods for calculating STOI typically requires clean reference…

音频与语音处理 · 电气工程与系统科学 2026-03-11 Amartyaveer , Murali Kadambi , Chandra Mohan Sharma , Anupam Mondal , Prasanta Kumar Ghosh

This paper considers unmanned aerial vehicle (UAV)-carried intelligent reflecting surface (IRS) for secure data collection in wireless sensor networks. An eavesdropper (Eve) lurks within the vicinity of the main receiver (Bob) while several…

信息论 · 计算机科学 2021-01-19 Christantus O. Nnamani , Muhammad R. A. Khandaker , Mathini Sellathurai

In this paper, the sensing beam pattern gain under simultaneously transmitting and reflecting reconfigurable intelligent surfaces (STAR-RIS)-enabled integrated sensing and communications (ISAC) systems is investigated, in which multiple…

信息论 · 计算机科学 2024-02-07 Shuang Zhang , Wanming Hao , Gangcan Sun , Zhengyu Zhu , Xingwang Li , Qingqing Wu

Reconfigurable intelligent surface (RIS) has shown its great potential in facilitating device-based integrated sensing and communication (ISAC), where sensing and communication tasks are mostly conducted on different time-frequency…

信息论 · 计算机科学 2023-06-09 Xiaowei Qian , Xiaoling Hu , Chenxi Liu , Mugen Peng , Caijun Zhong
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