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This paper proposes a novel multi-carrier modulation framework for high-mobility communication scenarios. Our key idea lies in spreading data symbols across the delay-Doppler (DD) domain through orthogonal chirp-Zak transform (CZT). To…

Signal Processing · Electrical Eng. & Systems 2025-11-25 Chaoyuan Bai , Pingzhi Fan , Zhengchun Zhou , Zilong Liu

With the integration of communication and computing, it is expected that part of the computing is transferred to the transmitter side. In this paper we address the general problem of Frequency Modulation (FM) for function approximation…

Signal Processing · Electrical Eng. & Systems 2023-06-29 Marc Martinez-Gost , Ana Pérez-Neira , Miguel Ángel Lagunas

In this paper, we introduce the concept of space-time channel modulation (STCM), which extends the classical space-time block codes into a new third dimension: channel states (transmission media) dimension. Three novel STCM schemes, which…

Information Theory · Computer Science 2017-02-24 Ertugrul Basar , Ibrahim Altunbas

Ghost imaging (GI) is a high-resolution imaging technology that has been a subject of interest to many fields in the past 20 years. Most GI researchers focus on the reconstruction of signal under-sampling, nevertheless, how to use…

Signal Processing · Electrical Eng. & Systems 2024-09-25 Shuang Liu , Yunkai Hu , Jinquan Qi , Shensheng Han , Zihuai Lin

Coded modulation is a key technique to increase the spectral efficiency of coherent optical communication systems. Two popular strategies for coded modulation are turbo trellis-coded modulation (TTCM) and bit-interleaved coded modulation…

Information Theory · Computer Science 2017-10-12 Eric Sillekens , Alex Alvarado , Chigo Okonkwo , Benn C. Thomsen

Fusing data from multiple modalities provides more information to train machine learning systems. However, it is prohibitively expensive and time-consuming to label each modality with a large amount of data, which leads to a crucial problem…

Computer Vision and Pattern Recognition · Computer Science 2020-07-15 Xinwei Sun , Yilun Xu , Peng Cao , Yuqing Kong , Lingjing Hu , Shanghang Zhang , Yizhou Wang

Recently, semantic communication (SC) has been regarded as one of the potential paradigms of 6G. Current SC frameworks require channel state information (CSI) to handle severe signal distortion induced by channel fading. Since the channel…

Information Theory · Computer Science 2023-12-29 Jin Mao , Ke Xiong , Ming Liu , Zhijin Qin , Wei Chen , Pingyi Fan , Khaled Ben Letaief

In this paper, we propose a spatial coded modulation (SCM) scheme, which improves the accuracy of the active antenna detection by coding over the transmit antennas. Specifically, the antenna activation pattern in the SCM corresponds to a…

Information Theory · Computer Science 2023-09-21 Junshan Luo , Fanggang Wang , Shilian Wang

Low-complexity improved-throughput generalised spatial modulation (LCIT-GSM) is proposed. More explicitly, in GSM, extra information bits are conveyed implicitly by activating a fixed number $N_{a}$ out of $N_{t}$ transmit antennas (TAs) at…

Information Theory · Computer Science 2021-07-28 Jiancheng An , Chao Xu , Yusha Liu , Lu Gan , Lajos Hanzo

Deep learning-based joint source-channel coding (JSCC) is emerging as a potential technology to meet the demand for effective data transmission, particularly for image transmission. Nevertheless, most existing advancements only consider…

Signal Processing · Electrical Eng. & Systems 2024-06-18 Pujing Yang , Guangyi Zhang , Yunlong Cai

This paper proposes a novel module called middle spectrum grouped convolution (MSGC) for efficient deep convolutional neural networks (DCNNs) with the mechanism of grouped convolution. It explores the broad "middle spectrum" area between…

Computer Vision and Pattern Recognition · Computer Science 2023-04-14 Zhuo Su , Jiehua Zhang , Tianpeng Liu , Zhen Liu , Shuanghui Zhang , Matti Pietikäinen , Li Liu

Automatic modulation classification (AMC) is a promising technology to realize intelligent wireless communications in the sixth generation (6G) wireless communication networks. Recently, many data-and-knowledge dual-driven AMC schemes have…

Signal Processing · Electrical Eng. & Systems 2024-03-04 Yike Li , Lu Yua , Fuhui Zhou , Qihui Wu , Naofal Al-Dhahir , Kai-Kit Wong

The construction of channel gain map (CGM) is essential for realizing environment-aware wireless communications expected in 6G, for which a fundamental problem is how to predict the channel gains at unknown locations effectively by a finite…

Networking and Internet Architecture · Computer Science 2025-02-25 Jiayi Chen , Ruifeng Gao , Jue Wang , Shu Sun , Yi Wu

Exposing the rate information of wireless transmission enables highly efficient attacks that can severely degrade the performance of a network at very low cost. In this paper, we introduce an integrated solution to conceal the rate…

Cryptography and Security · Computer Science 2014-11-20 Triet D. Vo-Huu , Guevara Noubir

Optimal modulation (OM) schemes for Gaussian channels with peak and average power constraints are known to require nonuniform probability distributions over signal points, which presents practical challenges. An established way to map…

Information Theory · Computer Science 2022-11-01 Basak Ozaydin , Muriel Médard , Ken Duffy

Deploying convolutional neural networks (CNNs) on embedded devices is difficult due to the limited memory and computation resources. The redundancy in feature maps is an important characteristic of those successful CNNs, but has rarely been…

Computer Vision and Pattern Recognition · Computer Science 2020-03-16 Kai Han , Yunhe Wang , Qi Tian , Jianyuan Guo , Chunjing Xu , Chang Xu

While transmission electron microscopes (TEM) can achieve a much higher resolution than optical microscopes, they face challenges of damage to samples during the high energy processes involved. Here, we explore using computational ghost…

In this paper, we propose to use a Conditional Generative Adversarial Network (CGAN) for distilling (i.e. transferring) knowledge from sensor data and enhancing low-resolution target detection. In unconstrained surveillance settings, sensor…

Image and Video Processing · Electrical Eng. & Systems 2018-07-23 Siddharth Roheda , Benjamin S. Riggan , Hamid Krim , Liyi Dai

In this work, we take the initiative in studying the information-theoretic tradeoff between communication and quickest change detection (QCD) under an integrated sensing and communication setting. We formally establish a joint communication…

Information Theory · Computer Science 2024-10-11 Daewon Seo , Sung Hoon Lim

Ambient backscatter communication (AmBC) enables radio-frequency (RF) powered backscatter devices (BDs) (e.g., sensors, tags) to modulate their information bits over ambient RF carriers in an over-the-air manner. This technology also called…

Information Theory · Computer Science 2017-04-11 Gang Yang , Ying-Chang Liang , Rui Zhang , Yiyang Pei