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This paper proposes a deep learning approach to channel sensing and downlink hybrid beamforming for massive multiple-input multiple-output systems operating in the time division duplex mode and employing either single-carrier or…

Information Theory · Computer Science 2022-06-30 Kareem M. Attiah , Foad Sohrabi , Wei Yu

Orthogonal time frequency space (OTFS) is a promising modulation scheme for wireless communication in high-mobility scenarios. Recently, a reservoir computing (RC) based approach has been introduced for online subframe-based symbol…

Signal Processing · Electrical Eng. & Systems 2024-01-26 Jiarui Xu , Karim Said , Lizhong Zheng , Lingjia Liu

In this article, we propose a model-driven deep learning (DL) approach that combines DL with the expert knowledge to replace the existing orthogonal frequency-division multiplexing (OFDM) receiver in wireless communications. Different from…

Signal Processing · Electrical Eng. & Systems 2018-10-23 Xuanxuan Gao , Shi Jin , Chao-Kai Wen , Geoffrey Ye Li

Although the combination of the orthogonal time frequency space (OTFS) modulation and the massive multiple-input multiple-output (MIMO) technology can make communication systems perform better in high-mobility scenarios, there are still…

Information Theory · Computer Science 2021-05-21 Ding Shi , Wenjin Wang , Li You , Xiaohang Song , Yi Hong , Xiqi Gao , Gerhard Fettweis

Orthogonal time frequency space (OTFS) modulation is a recently proposed waveform for reliable communication in high-speed vehicular communication scenarios. It has better resilience to inter-carrier interference (ICI) than orthogonal…

Information Theory · Computer Science 2020-01-29 Vivek Rangamgari , Shashank Tiwari , Suvra Sekhar Das , Subhas Chandra Mondal

Orthogonal time frequency space (OTFS) offers significant advantages in managing mobility for both wireless sensing and communication systems, making it a promising candidate for dual-functional radar-communication (DFRC). However, the…

Signal Processing · Electrical Eng. & Systems 2025-10-24 Borui Du , Yumeng Zhang , Christos Masouros , Bruno Clerckx

Future mobile networks not only envision enhancing the traditional link quality and data rates of mobile broad band (MBB) links, but also development of new control channels to meet the requirements of delay sensitive use cases. In…

Signal Processing · Electrical Eng. & Systems 2018-06-20 Amir Aminjavaheri , Ahmad RezazadehReyhani , Ramon Khalona , Hussein Moradi , Behrouz Farhang-Boroujeny

Orthogonal time frequency space (OTFS) modulation offers superior robustness to high-mobility channels compared to conventional orthogonal frequency-division multiplexing (OFDM) waveforms. However, its explicit delay-Doppler (DD) domain…

Signal Processing · Electrical Eng. & Systems 2026-04-03 Junyao Zheng , Chung-Hsuan Tung , Yuncheng Yao , Nishant Mehrotra , Sandesh Mattu , Zhenzhou Qi , Danyang Zhuo , Robert Calderbank , Tingjun Chen

Mission-critical applications require Ultra-Reliable Low Latency (URLLC) wireless connections, where the packet error rate (PER) goes down to $10^{-9}$. Fulfillment of the bold reliability figures becomes meaningful only if it can be…

Information Theory · Computer Science 2018-09-17 Marko Angjelichinoski , Kasper Fløe Trillingsgaard , Petar Popovski

Channel state information (CSI) is crucial for achieving ultra-reliable low-latency communication (URLLC) in wireless networks. The main associated problems are the CSI acquisition time, which impacts the delay requirements of time-critical…

Networking and Internet Architecture · Computer Science 2023-08-10 Dian Echevarría Pérez , Onel L. Alcaraz López , Hirley Alves

Optical wireless communication (OWC) is a promising technology for future wireless communications owing to its potentials for cost-effective network deployment and high data rate. There are several implementation issues in the OWC which…

Information Theory · Computer Science 2023-12-05 Hoon Lee , Sang Hyun Lee , Tony Q. S. Quek , Inkyu Lee

Channel estimation and signal detection are essential steps to ensure the quality of end-to-end communication in orthogonal frequency-division multiplexing (OFDM) systems. In this paper, we develop a DDLSD approach, i.e., Data-driven Deep…

Information Theory · Computer Science 2021-07-29 Guangliang Pan , Zitong Liu , Wei Wang , Minglei Li

Orthogonal Time Frequency Space (OTFS) is a novel framework that processes modulation symbols via a time-independent channel characterized by the delay-Doppler domain. The conventional waveform, orthogonal frequency division multiplexing…

Signal Processing · Electrical Eng. & Systems 2021-07-20 Zhou Zhou , Lingjia Liu , Jiarui Xu , Robert Calderbank

As one of the key communication scenarios in the 5th and also the 6th generation (6G) of mobile communication networks, ultra-reliable and low-latency communications (URLLC) will be central for the development of various emerging…

Signal Processing · Electrical Eng. & Systems 2021-01-21 Changyang She , Chengjian Sun , Zhouyou Gu , Yonghui Li , Chenyang Yang , H. Vincent Poor , Branka Vucetic

In our first paper [2] we explained why the Zak-OTFS input-output (I/O) relation is predictable and non-fading when the delay and Doppler periods are greater than the effective channel delay and Doppler spreads, a condition which we refer…

Signal Processing · Electrical Eng. & Systems 2023-10-03 Saif Khan Mohammed , Ronny Hadani , Ananthanarayanan Chockalingam , Robert Calderbank

This paper investigates the integrated sensing and communication (ISAC) in vehicle-to-infrastructure (V2I) networks. To realize ISAC, an effective beamforming design is essential which however, highly depends on the availability of accurate…

Signal Processing · Electrical Eng. & Systems 2022-04-28 Chang Liu , Weijie Yuan , Shuangyang Li , Xuemeng Liu , Husheng Li , Derrick Wing Kwan Ng , Yonghui Li

Deep-learning (DL) has emerged as a powerful machine-learning technique for several classic problems encountered in generic wireless communications. Specifically, random Fourier Features (RFF) based deep-learning has emerged as an…

Information Theory · Computer Science 2021-01-14 Rangeet Mitra , Georges Kaddoum

Time series prediction can be generalized as a process that extracts useful information from historical records and then determines future values. Learning long-range dependencies that are embedded in time series is often an obstacle for…

Neural and Evolutionary Computing · Computer Science 2018-10-25 Yuxiu Hua , Zhifeng Zhao , Rongpeng Li , Xianfu Chen , Zhiming Liu , Honggang Zhang

A novel precoding method based on supervised deep neural networks is introduced for the multiple-input multiple-output Gaussian wiretap channel. The proposed deep learning (DL)-based precoding learns the input covariance matrix through…

Information Theory · Computer Science 2019-09-18 Xinliang Zhang , Mojtaba Vaezi

With the recent advancements in wireless technologies, forecasting electromagnetic field (EMF) exposure has become critical to enable proactive network spectrum and power allocation, as well as network deployment planning. In this paper, we…

Machine Learning · Computer Science 2025-04-02 Xavier Mootoo , Hina Tabassum , Luca Chiaraviglio