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Semantic communications are expected to become the core new paradigms of the sixth generation (6G) wireless networks. Most existing works implicitly utilize channel information for codecs training, which leads to poor communications when…

Information Theory · Computer Science 2023-12-07 Lan Lin , Wenjun Xu , Fengyu Wang , Yimeng Zhang , Wei Zhang , Ping Zhang

The emerging field semantic communication is driving the research of end-to-end data transmission. By utilizing the powerful representation ability of deep learning models, learned data transmission schemes have exhibited superior…

Information Theory · Computer Science 2023-05-25 Jincheng Dai , Sixian Wang , Ke Yang , Kailin Tan , Xiaoqi Qin , Zhongwei Si , Kai Niu , Ping Zhang

We study the single-channel source separation problem involving orthogonal frequency-division multiplexing (OFDM) signals, which are ubiquitous in many modern-day digital communication systems. Related efforts have been pursued in monaural…

Signal Processing · Electrical Eng. & Systems 2023-06-28 Gary C. F. Lee , Amir Weiss , Alejandro Lancho , Yury Polyanskiy , Gregory W. Wornell

Integrated Sensing and Communication (ISAC) systems have garnered significant attention due to their capability to simultaneously achieve efficient communication and environmental sensing. A core objective in this field is characterizing…

Information Theory · Computer Science 2026-01-16 Gefei Peng , Youlong Wu

For reliable transmission across a noisy communication channel, classical results from information theory show that it is asymptotically optimal to separate out the source and channel coding processes. However, this decomposition can fall…

Machine Learning · Computer Science 2019-05-15 Kristy Choi , Kedar Tatwawadi , Aditya Grover , Tsachy Weissman , Stefano Ermon

This letter considers the transceiver design in frequency division duplex (FDD) massive multiple-input multiple-output (MIMO) orthogonal frequency division multiplexing (OFDM) systems for high-quality data transmission. We propose a novel…

Signal Processing · Electrical Eng. & Systems 2023-12-12 Junyi Yang , Weifeng Zhu , Shu Sun , Xiaofeng Li , Xingqin Lin , Meixia Tao

Large scale multiple-input multiple-output (MIMO) or Massive MIMO is one of the pivotal technologies for future wireless networks. However, the performance of massive MIMO systems heavily relies on accurate channel estimation. While the…

Signal Processing · Electrical Eng. & Systems 2020-02-25 Parna Sabeti , Arman Farhang , Irene Macaluso , Nicola Marchetti , Linda Doyle

Near-space airship-borne communication network is recognized to be an indispensable component of the future integrated ground-air-space network thanks to airships' advantage of long-term residency at stratospheric altitudes, but it urgently…

Signal Processing · Electrical Eng. & Systems 2024-05-31 Minghui Wu , Zhen Gao , Zhaocheng Wang , Dusit Niyato , George K. Karagiannidis , Sheng Chen

Joint source-channel coding schemes based on deep neural networks (DeepJSCC) have recently achieved remarkable performance for wireless image transmission. However, these methods usually focus only on the distortion of the reconstructed…

Image and Video Processing · Electrical Eng. & Systems 2023-10-03 Jiakang Chen , Di You , Deniz Gündüz , Pier Luigi Dragotti

Channel models are crucial for theoretical analysis, performance evaluation, and deployment of wireless communication systems. Traditional channel sounding systems are insufficient for handling the dynamic changes of channels in the…

Signal Processing · Electrical Eng. & Systems 2025-09-23 Yu Zhou , Chao Zou , Nanhao Zhou , Yanqun Tang , Xiaoying Zhang , Haoran Yin , Xiaoran Liu , Ruisi He , Pan Tang , Weijie Yuan , Yong Zeng

In this paper, we propose an orthogonal frequency division multiplexing (OFDM)-based generalized optical quadrature spatial modulation (GOQSM) technique for multiple-input multiple-output optical wireless communication (MIMO-OWC) systems.…

Signal Processing · Electrical Eng. & Systems 2021-12-02 Chen Chen , Lin Zeng , Xin Zhong , Shu Fu , Min Liu , Pengfei Du

This paper introduces a universal federated learning framework that enables over-the-air computation via digital communications, using a new joint source-channel coding scheme. Without relying on channel state information at devices, this…

Information Theory · Computer Science 2024-03-05 Seyed Mohammad Azimi-Abarghouyi , Lav R. Varshney

We study the transmission of correlated sources over discrete memoryless (DM) multiple-access-relay channels (MARCs), in which both the relay and the destination have access to side information arbitrarily correlated with the sources. As…

Information Theory · Computer Science 2014-07-29 Yonathan Murin , Ron Dabora , Deniz Gündüz

Joint source-channel coding systems based on deep neural networks (DeepJSCC) have recently demonstrated remarkable performance in wireless image transmission. Existing methods primarily focus on minimizing distortion between the transmitted…

Image and Video Processing · Electrical Eng. & Systems 2025-03-18 Jiakang Chen , Selim F. Yilmaz , Di You , Pier Luigi Dragotti , Deniz Gündüz

According to the recent 3GPP decisions on 6G air interface, orthogonal frequency-division multiplexing (OFDM)-based waveforms are the primary candidates for future integrated sensing and communication (ISAC) systems. In this paper, we…

Signal Processing · Electrical Eng. & Systems 2025-11-12 Jialiang Zhu , Hamza Haif , Abdelali Arous , Huseyin Arslan , Arman Farhang

This study explores the promising potential of integrating sensing capabilities into multiple-input multiple-output (MIMO)-orthogonal frequency division multiplexing (OFDM)-based networks through innovative multi-sensor fusion techniques,…

Signal Processing · Electrical Eng. & Systems 2023-12-13 Elia Favarelli , Elisabetta Matricardi , Lorenzo Pucci , Wen Xu , Enrico Paolini , Andrea Giorgetti

Efficient multi-user multi-task video transmission is an important research topic within the realm of current wireless communication systems. To reduce the transmission burden and save communication resources, we propose a goal-oriented…

Image and Video Processing · Electrical Eng. & Systems 2026-03-26 Yujie Xu , Shutong Chen , Nan Li , Yansha Deng , Jinhong Yuan , Robert Schober

We propose DepthTCM, a physics-aware end-to-end framework for depth map compression. In our framework of DepthTCM, the high-bit depth map is first converted to a conventional 3-channel image representation losslessly using a method inspired…

Computer Vision and Pattern Recognition · Computer Science 2026-03-24 Young-Seo Chang , Yatong An , Jae-Sang Hyun

This paper proposes a novel and simple orthogonal faster than Nyquist (OFTN) data transmission and detection approach for a single input multiple output (SIMO) system. It is assumed that the signal having a bandwidth $B$ is transmitted…

Information Theory · Computer Science 2017-07-25 Tadilo Endeshaw Bogale , Long Bao Le , Xianbin Wang , Luc Vandendorpe

In this paper we propose an independent channel precoder for orthogonal frequency division multiplexing (OFDM) systems over fading channels. The design of the precoder is based on the information redistribution of the input modulated…

Information Theory · Computer Science 2025-01-27 Jorge Ortin , Paloma Garcia , Fernando Gutierrez , Antonio Valdovinos
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