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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…

Signal Processing · Electrical Eng. & Systems 2024-09-26 Xiangyu Li , Bodong Shang , Qingqing Wu

A fundamental problem arising in dense wireless networks is the high co-channel interference. Interference alignment (IA) was recently proposed as an effective way to combat interference in wireless networks. The concept of IA, though, is…

Networking and Internet Architecture · Computer Science 2017-12-12 Konstantinos Dovelos , Boris Bellalta

This paper studies a downlink secure integrated sensing and communication (ISAC) system, in which a multi-antenna base station (BS) transmits confidential messages to a single-antenna communication user (CU) while performing sensing on…

Information Theory · Computer Science 2022-07-29 Zixiang Ren , Ling Qiu , Jie Xu , Derrick Wing Kwan Ng

In this paper, a cooperative two-hop communication scheme, together with opportunistic relaying (OR), is applied within a mobile wireless body area network (WBAN). Its effectiveness in interference mitigation is investigated in a scenario…

Networking and Internet Architecture · Computer Science 2012-12-20 Jie Dong , David Smith

WiFi sensing has emerged as a compelling contactless modality for human activity monitoring by capturing fine-grained variations in Channel State Information (CSI). Its ability to operate continuously and non-intrusively while preserving…

Signal Processing · Electrical Eng. & Systems 2025-11-21 Guozhen Zhu , Yuqian Hu , Weihang Gao , Wei-Hsiang Wang , Beibei Wang , K. J. Ray Liu

This paper investigates the security enhancement of an intelligent reflecting surface (IRS) assisted non-orthogonal multiple access (NOMA) network, where a distributed IRS enabled NOMA transmission framework is proposed to serve users…

Information Theory · Computer Science 2021-04-16 Zheng Zhang , Jian Chen , Qingqing Wu , Yuanwei Liu , Lu Lv , Xunqi Su

A key feature in the design of any MAC protocol is the throughput it can provide. In wireless networks, the channel of a user is not fixed but varies randomly. Thus, in order to maximize the throughput of the MAC protocol at any given time,…

Information Theory · Computer Science 2009-09-17 Syed T. Qaseem , Tareq Y. Al-Naffouri

The emerging pinching antenna (PA) technology has high flexibility to reconfigure wireless channels and combat line-of-sight blockage, thus holding transformative potential for indoor immersive applications in 6G. This paper investigates…

Performance · Computer Science 2025-06-10 Yulei Wang , Yalin Liu , Yaru Fu , Zhiguo Ding

Ensuring performance robustness for a variety of situations that can occur in real-world environments is one of the challenging tasks in sound event classification. One of the unpredictable and detrimental factors in performance, especially…

Sound · Computer Science 2021-04-22 Jaejun Lee , Donmoon Lee , Hyeong-Seok Choi , Kyogu Lee

Noise suppression models running in production environments are commonly trained on publicly available datasets. However, this approach leads to regressions due to the lack of training/testing on representative customer data. Moreover, due…

Audio and Speech Processing · Electrical Eng. & Systems 2023-04-05 Xavier Gitiaux , Aditya Khant , Ebrahim Beyrami , Chandan Reddy , Jayant Gupchup , Ross Cutler

This paper presents a self-supervised method for visual detection of the active speaker in a multi-person spoken interaction scenario. Active speaker detection is a fundamental prerequisite for any artificial cognitive system attempting to…

Computer Vision and Pattern Recognition · Computer Science 2019-07-19 Kalin Stefanov , Jonas Beskow , Giampiero Salvi

The acoustic environment can degrade speech quality during communication (e.g., video call, remote presentation, outside voice recording), and its impact is often unknown. Objective metrics for speech quality have proven challenging to…

Audio and Speech Processing · Electrical Eng. & Systems 2022-06-30 Karl El Hajal , Milos Cernak , Pablo Mainar

Recently, hybrid systems of clustering and neural diarization models have been successfully applied in multi-party meeting analysis. However, current models always treat overlapped speaker diarization as a multi-label classification…

Sound · Computer Science 2022-11-21 Zhihao Du , Shiliang Zhang , Siqi Zheng , Zhijie Yan

Faced with the threat of identity leakage during voice data publishing, users are engaged in a privacy-utility dilemma when enjoying convenient voice services. Existing studies employ direct modification or text-based re-synthesis to…

Sound · Computer Science 2022-11-11 Meng Chen , Li Lu , Jiadi Yu , Yingying Chen , Zhongjie Ba , Feng Lin , Kui Ren

Efficient data collection from a multitude of Internet of Things (IoT) devices is crucial for various applications, yet existing solutions often struggle with minimizing access delay and Age of Information (AoI), especially when managing…

Networking and Internet Architecture · Computer Science 2024-07-24 A. B. Abdul Razzaque , A. Baiocchi

We present an IoT-based intelligent bed sensor system that collects and analyses respiration-associated signals for unobtrusive monitoring in the home, hospitals and care units. A contactless device is used, which contains four load sensors…

Signal Processing · Electrical Eng. & Systems 2021-03-26 Qingju Liu , Mark Kenny , Ramin Nilforooshan , Payam Barnaghi

The use of deep networks to extract embeddings for speaker recognition has proven successfully. However, such embeddings are susceptible to performance degradation due to the mismatches among the training, enrollment, and test conditions.…

Sound · Computer Science 2019-04-30 Zhong Meng , Yong Zhao , Jinyu Li , Yifan Gong

The INTERSPEECH 2020 Deep Noise Suppression (DNS) Challenge is intended to promote collaborative research in real-time single-channel Speech Enhancement aimed to maximize the subjective (perceptual) quality of the enhanced speech. A typical…

Spoofing detection systems are typically trained using diverse recordings from multiple speakers, often assuming that the resulting embeddings are independent of speaker identity. However, this assumption remains unverified. In this paper,…

Sound · Computer Science 2026-02-25 Anh-Tuan Dao , Driss Matrouf , Nicholas Evans

Polysomnography (PSG), the current gold standard method for monitoring and detecting sleep disorders, is cumbersome and costly. At-home testing solutions, known as home sleep apnea testing (HSAT), exist. However, they are contact-based, a…

Computer Vision and Pattern Recognition · Computer Science 2024-08-08 Kai Del Regno , Alexander Vilesov , Adnan Armouti , Anirudh Bindiganavale Harish , Selim Emir Can , Ashley Kita , Achuta Kadambi
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