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Parametric modeling of non-stationary signals is addressed in this article. We present several models based on the characteristic features of the modeled signal, together with the methods for accurate estimation of model parameters.…

Signal Processing · Electrical Eng. & Systems 2018-01-30 Pradip Sircar

Next-generation wireless networks are expected to develop a novel paradigm of integrated sensing and communications (ISAC) to enable both the high-accuracy sensing and high-speed communications. However, conventional mono-static ISAC…

Signal Processing · Electrical Eng. & Systems 2024-10-24 Dan Wang , Yuanming Tian , Chuan Huang , Hao Chen , Xiaodong Xu , Ping Zhang

In this paper, we investigate the hybrid beamforming design for a multiple-input multiple-output (MIMO) integrated sensing and communication (ISAC) system, where a multi-antenna base station (BS) with hybrid analog-digital transmit antenna…

Information Theory · Computer Science 2024-09-09 Yizhuo Wang , Shuowen Zhang

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…

Information Theory · Computer Science 2023-03-22 Onur Günlü , Matthieu R. Bloch , Rafael F. Schaefer , Aylin Yener

A hybrid communication network with a common analog signal and an independent digital data stream as input to each node in a multiple access network is considered. The receiver/base-station has to estimate the analog signal with a given…

Information Theory · Computer Science 2018-11-27 Viswanathan Ramachandran , Sibi Raj B Pillai , Vinod M Prabhakaran

We consider the problem of tensor estimation from noisy observations with possibly missing entries. A nonparametric approach to tensor completion is developed based on a new model which we coin as sign representable tensors. The model…

Machine Learning · Statistics 2021-11-04 Chanwoo Lee , Miaoyan Wang

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…

Information Theory · Computer Science 2022-08-16 Onur Günlü , Matthieu Bloch , Rafael F. Schaefer , Aylin Yener

Sensing performance is typically evaluated by classical radar metrics, such as Cramer-Rao bound and signal-to-clutter-plus-noise ratio. The recent development of the integrated sensing and communication (ISAC) framework motivated the…

Information Theory · Computer Science 2024-02-07 Lei Xie , Fan Liu , Jiajin Luo , Shenghui Song

Next-generation wireless systems are rapidly evolving from communication-only systems to multi-modal systems with integrated sensing and communications. In this paper a novel joint sensing and communication framework is proposed for…

Information Theory · Computer Science 2021-11-30 Christina Chaccour , Walid Saad , Omid Semiari , Mehdi Bennis , Petar Popovski

Wireless communications is often subject to channel fading. Various statistical models have been proposed to capture the inherent randomness in fading, and conventional model-based receiver designs rely on accurate knowledge of this…

Information Theory · Computer Science 2021-03-30 Mahdi Boloursaz Mashhadi , Nir Shlezinger , Yonina C. Eldar , Deniz Gunduz

Integrated sensing and communications (ISAC) is recognized as a key enabling technology for future wireless networks. To shed light on the fundamental performance limits of ISAC systems, this paper studies the deterministic-random tradeoff…

Information Theory · Computer Science 2023-01-05 Fan Liu , Yifeng Xiong , Kai Wan , Tony Xiao Han , Giuseppe Caire

Ambient backscatter communication (AmBC) is becoming increasingly popular for enabling green communication amidst the continual development of the Internet-of-things paradigm. Efforts have been put into backscatter signal detection as the…

Signal Processing · Electrical Eng. & Systems 2020-08-25 Xiyu Wang , Hüseyin Yiğitler , Riku Jäntti

We propose a robust spectrum sensing framework based on deep learning. The received signals at the secondary user's receiver are filtered, sampled and then directly fed into a convolutional neural network. Although this deep sensing is…

Information Theory · Computer Science 2019-08-05 Qihang Peng , Andrew Gilman , Nuno Vasconcelos , Pamela C. Cosman , Laurence B. Milstein

We consider a semantic communication system for speech signals, named DeepSC-S. Motivated by the breakthroughs in deep learning (DL), we make an effort to recover the transmitted speech signals in the semantic communication systems, which…

Audio and Speech Processing · Electrical Eng. & Systems 2021-09-09 Zhenzi Weng , Zhijin Qin , Geoffrey Ye Li

Millimeter-wave (mmWave) and terahertz (THz) communication systems require large antenna arrays and use narrow directive beams to ensure sufficient receive signal power. However, selecting the optimal beams for these large antenna arrays…

Information Theory · Computer Science 2024-02-23 Shoaib Imran , Gouranga Charan , Ahmed Alkhateeb

This work presents a novel robust beamforming design dedicated for dual-functional radar and communication (DFRC) base stations (BSs) in the context of integrated sensing and communications (ISAC). The architecture is intended for…

Signal Processing · Electrical Eng. & Systems 2023-03-15 Ahmad Bazzi , Marwa Chafii

This paper considers a multiple-input multiple-output (MIMO) integrated sensing and communication (ISAC) system, where a multi-antenna base station (BS) with transceiver hybrid analog-digital arrays transmits dual-functional signals to…

Information Theory · Computer Science 2026-02-03 Yizhuo Wang , Shuowen Zhang

We consider a general spectral coexistence scenario, wherein the channels and transmit signals of both radar and communications systems are unknown at the receiver. In this \textit{dual-blind deconvolution} (DBD) problem, a common receiver…

Signal Processing · Electrical Eng. & Systems 2021-11-12 Edwin Vargas , Kumar Vijay Mishra , Roman Jacome , Brian M. Sadler , Henry Arguello

We propose a novel flexible and scalable framework to design integrated communication and computing (ICC) -- a.k.a. over-the-air computing (AirComp)-- receivers. To elaborate, while related literature so far has generally focused either on…

Signal Processing · Electrical Eng. & Systems 2024-11-12 Kuranage Roche Rayan Ranasinghe , Kengo Ando , Giuseppe Thadeu Freitas de Abreu

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…

Signal Processing · Electrical Eng. & Systems 2023-04-13 Xinyu Bian , Yuyi Mao , Jun Zhang