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The interference from active to passive users is a well-recognized challenge in millimeter-wave (mmWave) communications. We propose a method that enables to limit the interference on passive users (whose presence may not be detected since…

Information Theory · Computer Science 2023-08-29 Mine Gokce Dogan , Martina Cardone , Christina Fragouli

The multiple access channel (MAC) with many-user is a general model for massive machine type communications. In this paradigm, the number of users may be comparable or even larger than the coding blocklength $n$. In contrast, classical MAC…

Information Theory · Computer Science 2019-08-12 Fan Wei , Yongpeng Wu , Wen Chen , Yanlin Geng , Giuseppe Caire

Error performance of noncoherent detection of on-off frequency shift keying (OOFSK) modulation over fading channels is analyzed when the receiver is equipped with multiple antennas. The analysis is conducted for two cases: 1) the case in…

Information Theory · Computer Science 2009-06-23 Mustafa Cenk Gursoy , Qingyun Wang

Consumer Internet of Things (IoT) devices are increasingly common in everyday homes, from smart speakers to security cameras. Along with their benefits come potential privacy and security threats. To limit these threats we must implement…

Machine Learning · Computer Science 2021-10-28 Oliver Thompson , Anna Maria Mandalari , Hamed Haddadi

Activity recognition is the ability to identify and recognize the action or goals of the agent. The agent can be any object or entity that performs action that has end goals. The agents can be a single agent performing the action or group…

Machine Learning · Computer Science 2019-06-19 Ashwin Geet D'Sa , B. G. Prasad

Emerging applications such as autonomous driving and industrial automation demand ultra-reliable and low-latency communication (URLLC), where maintaining fresh and timely information is critical. A key performance metric in such systems is…

Systems and Control · Electrical Eng. & Systems 2026-02-27 Maryam Ansarifard , Mohit K. Sharma , Kishor C. Joshi , George Exarchakos

The spatial diversity and multiplexing advantages of massive multi-input-multi-output (mMIMO) can significantly improve the capacity of massive non-orthogonal multiple access (NOMA) in machine type communications. However, state-of-the-art…

Signal Processing · Electrical Eng. & Systems 2025-02-17 Yueqing Wang , Yikun Mei , Zhen Gao , Ziwei Wan , Boyu Ning , De Mi , Sami Muhaidat

In this paper, we investigate a time-slotted cognitive setting with buffered primary and secondary users. In order to alleviate the negative effects of misdetection and false alarm probabilities, a novel design of spectrum access mechanism…

Information Theory · Computer Science 2013-03-26 Ahmed El Shafie

Existing works on grant-free access, proposed to support massive machine-type communication (mMTC) for the Internet of things (IoT), mainly concentrate on narrow band systems under flat fading. However, little is known about massive…

Information Theory · Computer Science 2022-01-03 Yuhang Jia , Ying Cui , Wuyang Jiang

Traditional activity recognition systems work on the basis of training, taking a fixed set of sensors into account. In this article, we focus on the question how pattern recognition can leverage new information sources without any, or with…

Computer Vision and Pattern Recognition · Computer Science 2017-01-31 David Bannach , Martin Jänicke , Vitor F. Rey , Sven Tomforde , Bernhard Sick , Paul Lukowicz

Both faster than Nyquist (FTN) signaling and non-orthogonal multiple access (NOMA) are promising next generation wireless communications techniques as a benefit of their capability of improving the system's spectral efficiency. This paper…

Signal Processing · Electrical Eng. & Systems 2020-02-20 Weijie Yuan , Nan Wu , Jinhong Yuan , Derrick Wing Kwan Ng , Lajos Hanzo

Many organisations manage service quality and monitor a large set devices and servers where each entity is associated with telemetry or physical sensor data series. Recently, various methods have been proposed to detect behavioural…

Social and Information Networks · Computer Science 2023-05-10 Len Feremans , Boris Cule , Bart Goethals

This work introduces a new perspective for physical media sharing in multiuser communication by jointly considering (i) the meaning of the transmitted message and (ii) its function at the end user. Specifically, we have defined a scenario…

A power optimal scheduling algorithm that guarantees desired throughput and bounded delay to each user is developed for fading multi-access multi-band systems. The optimization is over the joint space of all rate allocation and coding…

Information Theory · Computer Science 2007-07-13 Prasanna Chaporkar , Kimmo Kansanen , Ralf R. Müller

Code-domain non-orthogonal multiple access (CD-NOMA) systems offer key benefits such as high spectral efficiency, low latency, high reliability, and massive connectivity. NOMA's ability to handle overloading allows multiple devices to share…

Signal Processing · Electrical Eng. & Systems 2024-10-23 Vinjamoori Vikas , Kuntal Deka , A. Rajesh

The performance of systems where multiple users communicate over wireless fading links benefits from channel-adaptive allocation of the available resources. Different from most existing approaches that allocate resources based on perfect…

Information Theory · Computer Science 2009-09-07 Antonio G. Marques , Georgios B. Giannakis , Javier Ramos

This article investigates the problem of dynamic spectrum access for canonical wireless networks, in which the channel states are time-varying. In the most existing work, the commonly used optimization objective is to maximize the…

Information Theory · Computer Science 2017-07-31 Yuhua Xu , Jinlong Wang , Qihui Wu , Jianchao Zheng , Liang Shen , Alagan Anpalagan

Traditional random access schemes are designed based on the aggregate process of user activation, which is created on the basis of independent activations of the users. However, in Machine-Type Communications (MTC), some users are likely to…

Information Theory · Computer Science 2018-03-12 Anders Ellersgaard Kalør , Osama A. Hanna , Petar Popovski

We study mission-critical networking in wireless communication networks, where network users are subject to critical events such as emergencies and crises. If a critical event occurs to a user, the user needs to send necessary information…

Networking and Internet Architecture · Computer Science 2009-04-06 Jaeok Park , Mihaela van der Schaar

Activity recognition, as an important component of behavioral monitoring and intervention, has attracted enormous attention, especially in Mobile Cloud Computing (MCC) and Remote Health Monitoring (RHM) paradigms. While recently resource…

Networking and Internet Architecture · Computer Science 2023-11-17 J. Pagan , R. Fallahzadeh , M. Pedram , José L. Risco-Martín , J. M. Moya , J. L. Ayala , H. Ghasemzadeh