Results 1 to 10 of about 20,895 (184)

Probabilistic Shaping for Finite Blocklengths: Distribution Matching and Sphere Shaping [PDF]

Entropy, 2020
In this paper, we provide a systematic comparison of distribution matching (DM) and sphere shaping (SpSh) algorithms for short blocklength probabilistic amplitude shaping. For asymptotically large blocklengths, constant composition distribution matching (
Yunus Can Gültekin, Tobias Fehenberger, Alex Alvarado, Frans M. J. Willems   +3 more
doaj   +4 more sources

Probabilistic Constellation Shaping for Optical Fiber Communications [PDF]

Journal of Lightwave Technology, 2019
We review probabilistic constellation shaping (PCS), which has been a key enabler for several recent record-setting optical fiber communications experiments. PCS provides both fine-grained rate adaptability and energy efficiency (sensitivity) gains. We discuss the reasons for the fundamentally better performance of PCS over other constellation shaping ...
Junho Cho, Peter J. Winzer
openaire   +2 more sources

Probabilistic Constellation Shaping for OFDM-Based ISAC Signaling [PDF]

2023 IEEE Globecom Workshops (GC Wkshps), 2023
Integrated Sensing and Communications (ISAC) has garnered significant attention as a promising technology for the upcoming sixth-generation wireless communication systems (6G). In pursuit of this goal, a common strategy is that a unified waveform, such as Orthogonal Frequency Division Multiplexing (OFDM), should serve dual-functional roles by enabling ...
Du, Zhen, Liu, Fan, Xiong, Yifeng, Han, Tony Xiao, Yuan, Weijie, Cui, Yuanhao, Yao, Changhua, Eldar, Yonina C.   +7 more
openaire   +3 more sources

Probabilistic Constellation Shaping for Molecular Communications

IEEE Transactions on Communications, 2023
Molecular communication (MC) is an emerging field aiming at realizing information exchange via chemical signals between nanomachines in nanonetworks. Information transmission that is energy-efficient and relies on relatively low-complexity transceiver techniques is of practical importance for MC systems. Based on the fact that constellation shaping can
Yuankun Tang, Fei Ji, Miaowen Wen, Qianqian Wang, Chan-Byoung Chae, Lie-Liang Yang   +5 more
openaire   +4 more sources

Optimization of Probabilistic Shaping for Nonlinear Fiber Channels with Non-Gaussian Noise [PDF]

Entropy, 2020
Probabilistic constellation shaping is investigated in the context of nonlinear fiber optic communication channels. Based on a general framework, different link types are considered—1. dispersion-managed channels, 2.
Henrik Enggaard Hansen, Metodi P. Yankov, Leif Katsuo Oxenløwe, Søren Forchhammer   +3 more
doaj   +2 more sources

Designand Implementation of a Novel Wideband HF Communication System Based on NC-OFDM and Probabilistic Shaping [PDF]

Sensors
This paper proposes a novel wideband high-frequency (HF) communication system supporting video transmission based on non-contiguous orthogonal frequency division multiplexing (NC-OFDM) and probabilistic shaping (PS).
Rifei Yang, Yong Bai, Zhuhua Hu
doaj   +2 more sources

Probabilistic Constellation Shaping With Denoising Diffusion Probabilistic Models: A Novel Approach [PDF]

arXiv.org, 2023
With the incredible results achieved from generative pre-trained transformers (GPT) and diffusion models, generative AI (GenAI) is envisioned to yield remarkable breakthroughs in various industrial and academic domains. In this paper, we utilize denoising diffusion probabilistic models (DDPM), as one of the state-of-the-art generative models, for ...
Letafati, Mehdi, Ali, Samad, Latva-aho, Matti   +2 more
openaire   +3 more sources

A High-Security Probabilistic Constellation Shaping Transmission Scheme Based on Recurrent Neural Networks

Photonics, 2023
In this paper, a high-security probabilistic constellation shaping transmission scheme based on recurrent neural networks (RNNs) is proposed, in which the constellation point probabilistic distribution is generated based on recurrent neural network ...
Shuyu Zhou, Bo Liu, Jianxin Ren, Yaya Mao, Xiangyu Wu, Zeqian Guo, Xu Zhu, Zhongwen Ding, Mengjie Wu, Feng Wang, Rahat Ullah, Yongfeng Wu, Lilong Zhao, Ying Li   +13 more
doaj   +2 more sources

Does Probabilistic Constellation Shaping Benefit IM-DD Systems Without Optical Amplifiers? [PDF]

Journal of Lightwave Technology, 2021
Probabilistic constellation shaping (PCS) has been widely applied to amplified coherent optical transmissions owing to its shaping gain over the uniform signaling and fine-grained rate adaptation to the underlying fiber channel condition. These merits stimulate the study of applying PCS to short-reach applications dominated by intensity modulation (IM)
Di Che, Junho Cho, Xi Chen
openaire   +4 more sources

Mutual Information Neural-Estimation-Driven Constellation Shaping Design and Performance Analysis [PDF]

Entropy
The choice of constellations largely affects the performance of both wireless and optical communications. To address increasing capacity requirements, constellation shaping, especially for high-order modulations, is imperative in high-speed coherent ...
Xiuli Ji, Qian Wang, Liping Qian, Pooi-Yuen Kam   +3 more
doaj   +2 more sources