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Spectrum sharing is a new approach to solve the congestion problem in the RF spectrum. A spatial approach for spectrum sharing between a radar and a communication system was proposed, which mitigates the radar interference to communication…

信息论 · 计算机科学 2016-11-17 Awais Khawar , Ahmed Abdelhadi , T. Charles Clancy

Integrated sensing and communication (ISAC) is envisioned as a key pillar for enabling the upcoming sixth generation (6G) communication systems, requiring not only reliable communication functionalities but also highly accurate…

信号处理 · 电气工程与系统科学 2024-05-28 Jiapeng Li , Xiaodan Shao , Feng Chen , Shaohua Wan , Chang Liu , Zhiqiang Wei , Derrick Wing Kwan Ng

The knowledge of channel statistics can be very helpful in making sound opportunistic spectrum access decisions. It is therefore desirable to be able to efficiently and accurately estimate channel statistics. In this paper we study the…

信息论 · 计算机科学 2015-03-17 Quanquan Liang , Mingyan Liu

We investigate the increasingly prominent task of jointly inferring multiple networks from nodal observations. While most joint inference methods assume that observations are available at all nodes, we consider the realistic and more…

信号处理 · 电气工程与系统科学 2025-12-17 Madeline Navarro , Samuel Rey , Andrei Buciulea , Antonio G. Marques , Santiago Segarra

Block transmission systems have been proven successful over frequency-selective channels. For time-varying channel such as in high-speed mobile communication and underwater communication, existing equalizers assume that channels over…

信号处理 · 电气工程与系统科学 2023-05-17 Yifan Wang , Minhao Zhang , Xingbin Tu , Zhipeng Li , Fengzhong Qu , Yan Wei

In this paper, a cooperative diffusion-based molecular communication system is considered where distributed receivers collaboratively determine a transmitter's signal. In this system, the receivers first make local hard decisions about the…

信息论 · 计算机科学 2017-03-20 Yuting Fang , Adam Noel , Nan Yang , Andrew W. Eckford , Rodney A. Kennedy

We propose a joint channel estimation and data detection algorithm for massive multilple-input multiple-output systems based on diffusion models. Our proposed method solves the blind inverse problem by sampling from the joint posterior…

信号处理 · 电气工程与系统科学 2023-11-20 Nicolas Zilberstein , Ananthram Swami , Santiago Segarra

In this paper, we propose a data-driven framework for collaborative wideband spectrum sensing and scheduling for networked unmanned aerial vehicles (UAVs), which act as the secondary users to opportunistically utilize detected spectrum…

信号处理 · 电气工程与系统科学 2023-08-10 Sravan Reddy Chintareddy , Keenan Roach , Kenny Cheung , Morteza Hashemi

Dynamic spectrum access allows the unlicensed wireless users (secondary users) to dynamically access the licensed bands from legacy spectrum holders (primary users) either on an opportunistic or a cooperative basis. In this paper, we focus…

网络与互联网体系结构 · 计算机科学 2015-12-04 Nima Namvar , Fatemeh Afghah

This work considers the problem of mitigating information leakage between communication and sensing in systems jointly performing both operations. Specifically, a discrete memoryless state-dependent broadcast channel model is studied in…

信息论 · 计算机科学 2023-03-22 Onur Günlü , Matthieu R. Bloch , Rafael F. Schaefer , Aylin Yener

We study the problem of joint communication and sensing for data transmission systems using optimal quantum instruments in order to transmit data and, at the same time, estimate environmental parameters. In particular we consider the…

量子物理 · 物理学 2024-11-19 Pere Munar-Vallespir , Janis Nötzel

In the massive machine-type communication (mMTC) scenario, a large number of devices with sporadic traffic need to access the network on limited radio resources. While grant-free random access has emerged as a promising mechanism for…

信号处理 · 电气工程与系统科学 2023-04-13 Xinyu Bian , Yuyi Mao , Jun Zhang

We assume that a buffer-aided transmitter communicates with a receiving node in the presence of an attacker. We investigate the impact of a radio-frequency energy-harvesting attacker that probabilistically operates as a jammer or an…

信息论 · 计算机科学 2017-06-20 Ahmed El Shafie , Kamel Tourki , Zhiguo Ding , Naofal Al-Dhahir

Channel splicing is a rather new and very promising concept. It allows to realize a wideband channel sounder by combining multiple narrow-band measurements. Among others, channel splicing is a sparse sensing techniques suggested for use in…

网络与互联网体系结构 · 计算机科学 2023-05-10 Sigrid Dimce , Anatolij Zubow , Alireza Bayesteh , Giuseppe Caire , Falko Dressler

We have recently proposed a scheme to use the channel equalization blocks of telecommunication systems to sense changes in an environment. We call this communication-sensing, CommSense for short. After some initial positive results we tried…

信号处理 · 电气工程与系统科学 2017-12-25 Abhishek Bhatta , Amit Kumar Mishra

Graphical models have been widely applied in solving distributed inference problems in sensor networks. In this paper, the problem of coordinating a network of sensors to train a unique ensemble estimator under communication constraints is…

分布式、并行与集群计算 · 计算机科学 2016-11-17 Haipeng Zheng , Sanjeev R. Kulkarni , H. Vincent Poor

A simple feedback control algorithm is presented for distributed beamforming in a wireless network. A network of wireless sensors that seek to cooperatively transmit a common message signal to a Base Station (BS) is considered. In this…

信息论 · 计算机科学 2007-07-16 R. Mudumbai , J. Hespanha , U. Madhow , G. Barriac

Spectrum sensing is a fundamental and critical issue for opportunistic spectrum access in cognitive radio networks. Among the many spectrum sensing methods, the information theoretic criteria (ITC) based method is a promising blind method…

信息论 · 计算机科学 2010-08-05 Rui Wang , Meixia Tao

In this paper, a novel covert semantic communication framework is investigated. Within this framework, a server extracts and transmits the semantic information, i.e., the meaning of image data, to a user over several time slots. An attacker…

人工智能 · 计算机科学 2025-08-12 Wenjing Zhang , Ye Hu , Tao Luo , Zhilong Zhang , Mingzhe Chen

In cognitive radio systems, the ability to accurately detect primary user's signal is essential to secondary user in order to utilize idle licensed spectrum. Conventional energy detector is a good choice for blind signal detection, while it…

信息论 · 计算机科学 2019-09-09 Jiabao Gao , Xuemei Yi , Caijun Zhong , Xiaoming Chen , Zhaoyang Zhang