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Deep learning models for channel estimation in Orthogonal Frequency Division Multiplexing (OFDM) systems often suffer from performance degradation under fast-fading channels and low-SNR scenarios. To address these limitations, we introduce…

机器学习 · 计算机科学 2025-05-15 Berkay Guler , Hamid Jafarkhani

We propose a novel recurrent encoder-decoder network model for real-time video-based face alignment. Our proposed model predicts 2D facial point maps regularized by a regression loss, while uniquely exploiting recurrent learning at both…

计算机视觉与模式识别 · 计算机科学 2016-08-24 Xi Peng , Rogerio S. Feris , Xiaoyu Wang , Dimitris N. Metaxas

In coherent optical orthogonal frequency-division multiplexing (CO-OFDM) fiber communications, a novel end-to-end learning framework to mitigate Laser Phase Noise (LPN) impairments is proposed in this paper. Inspired by Autoencoder (AE)…

信号处理 · 电气工程与系统科学 2025-06-24 Omar Alnaseri , Yassine Himeur

Continuous phase modulation (CPM) has extensive applications in wireless communications due to its high spectral and power efficiency. However, its nonlinear characteristics pose significant challenges for detection in frequency selective…

信息论 · 计算机科学 2024-08-15 Zilong Liu , Yi Song , Qinghua Guo , Peng Sun , Kexian Gong , Zhongyong Wang

Interconnecting heterogeneous quantum systems is an important step toward realizing the quantum internet. We propose a quantum network hub that interfaces local quantum devices with dense wavelength-division multiplexing (DWDM) networks in…

A neural network is essentially a high-dimensional complex mapping model by adjusting network weights for feature fitting. However, the spectral bias in network training leads to unbearable training epochs for fitting the high-frequency…

信号处理 · 电气工程与系统科学 2021-06-22 Zhi Zeng , Pengpeng Shi , Fulei Ma , Peihan Qi

This paper develops novel deep learning-based architectures and design methodologies for an orthogonal frequency division multiplexing (OFDM) receiver under the constraint of one-bit complex quantization. Single bit quantization greatly…

信息论 · 计算机科学 2019-05-29 Eren Balevi , Jeffrey G. Andrews

The inherent long decay power delay profile (PDP) in the reverberation chamber (RC) is a major challenge for accurate channel emulation of 3GPP channel model, which is widely used in performance test of the physical layer. To tackle this…

信号处理 · 电气工程与系统科学 2024-04-24 Yunsong Gui , Tian Hong Loh

We establish a continuous-time framework for analyzing Deep Q-Networks (DQNs) via stochastic control and Forward-Backward Stochastic Differential Equations (FBSDEs). Considering a continuous-time Markov Decision Process (MDP) driven by a…

机器学习 · 计算机科学 2025-05-06 Qian Qi

With the advent of the 5G wireless networks, achieving tens of gigabits per second throughputs and low, milliseconds, latency has become a reality. This level of performance will fuel numerous real-time applications, such as autonomy and…

信号处理 · 电气工程与系统科学 2020-09-14 Ashkan Samiee , Yiming Zhou , Tingyi Zhou , Bahram Jalali

We propose a novel receiver for orthogonal frequency division multiplexing (OFDM) transmissions in impulsive noise environments. Impulsive noise arises in many modern wireless and wireline communication systems, such as Wi-Fi and powerline…

信息论 · 计算机科学 2015-06-16 Marcel Nassar , Philip Schniter , Brian L. Evans

Increasing wireless network complexity demands scalable resource management. Classical GNNs excel at graph learning but incur high computational costs in large-scale settings. We present a fully quantum Graph Neural Network (QGNN) that…

机器学习 · 计算机科学 2025-11-25 Tung Giang Le , Xuan Tung Nguyen , Won-Joo Hwang

Deploying periodic inline chromatic dispersion compensation enables reducing the complexity of the digital back propagation (DBP) algorithm. However, compared with nondispersion-managed (NDM) links, dispersion-managed (DM) ones suffer a…

信息论 · 计算机科学 2024-01-25 Kamran Keykhosravi , Marco Secondini , Giuseppe Durisi , Erik Agrell

Building large models with parameter sharing accounts for most of the success of deep convolutional neural networks (CNNs). In this paper, we propose doubly convolutional neural networks (DCNNs), which significantly improve the performance…

机器学习 · 计算机科学 2016-11-01 Shuangfei Zhai , Yu Cheng , Weining Lu , Zhongfei Zhang

Dynamic Graph Neural Networks (DyGNNs) have garnered increasing research attention for learning representations on evolving graphs. Despite their effectiveness, the limited expressive power of existing DyGNNs hinders them from capturing…

机器学习 · 计算机科学 2024-10-03 Zhe Wang , Tianjian Zhao , Zhen Zhang , Jiawei Chen , Sheng Zhou , Yan Feng , Chun Chen , Can Wang

We present a parameter-efficient Diffusion Transformer (DiT) for generating 200bp cell-type-specific regulatory DNA sequences. By replacing the U-Net backbone of DNA-Diffusion with a transformer denoiser equipped with a 2D CNN input…

机器学习 · 计算机科学 2026-03-12 Jonathan Liu , Kia Ghods

A large majority of cellular networks deployed today make use of Frequency Division Duplexing (FDD) where, in contrast with Time Division Duplexing (TDD), the channel reciprocity does not hold and explicit downlink (DL) probing and uplink…

信息论 · 计算机科学 2019-12-09 Mahdi Barzegar Khalilsarai , Yi Song , Tianyu Yang , Saeid Haghighatshoar , Giuseppe Caire

The neural network and quantum computing are both significant and appealing fields, with their interactive disciplines promising for large-scale computing tasks that are untackled by conventional computers. However, both developments are…

量子物理 · 物理学 2021-06-22 Feihong Shen , Jun Liu

Photonic reservoir computer (PRC) is a kind of real-time and adaptive recurrent neural network, where only weights in the readout layer require training. PRC is a promising tool to deal with the crucial issue of nonlinear equalization in…

光学 · 物理学 2025-04-24 Rui-Qian Li , Yi-Wei Shen , Zekun Niu , Guozhi Xu , Jingyi Yu , Xuming He , Lilin Yi , Cheng Wang

Advanced channel decoders rely on soft-decision decoder inputs for which mutual information (MI) is the natural figure of merit. In this paper, we analyze an optical fiber system by evaluating MI as the maximum achievable rate of…

信息论 · 计算机科学 2015-11-20 Tobias Fehenberger , Norbert Hanik