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We experimentally study the synchronization of chaos generated by semiconductor lasers in a cascade injection configuration, i.e., a tunable master laser is used to generate chaos by optical injection in a transmitter laser that injects…

Optics · Physics 2024-05-08 Jules Mercadier , Yaya Doumbia , Stefan Bittner , Marc Sciamanna

We propose a new signaling scheme for on-chip optical-electrical-optical artificial neural networks that utilizes orthogonal delay-division multiplexing and pilot-tone based self-homodyne detection. This scheme offers a more efficient…

Emerging Technologies · Computer Science 2023-10-20 Andrea Zazzi , Arka Dipta Das , Lukas Hüssen , Renato Negra , Jeremy Witzens

Streaming ASR with strict latency constraints is required in many speech recognition applications. In order to achieve the required latency, streaming ASR models sacrifice accuracy compared to non-streaming ASR models due to lack of future…

Computation and Language · Computer Science 2022-03-30 Jay Mahadeokar , Yangyang Shi , Ke Li , Duc Le , Jiedan Zhu , Vikas Chandra , Ozlem Kalinli , Michael L Seltzer

Audio coding is an essential module in the real-time communication system. Neural audio codecs can compress audio samples with a low bitrate due to the strong modeling and generative capabilities of deep neural networks. To address the poor…

Sound · Computer Science 2023-10-18 Wenzhe Liu , Wei Xiao , Meng Wang , Shan Yang , Yupeng Shi , Yuyong Kang , Dan Su , Shidong Shang , Dong Yu

In this work, we propose to use various artificial neural network (ANN) structures for modeling and compensation of intra- and inter-subcarrier fiber nonlinear interference in digital subcarrier multiplexing (DSCM) optical transmission…

Information Theory · Computer Science 2023-08-09 Ali Bakhshali , Hossein Najafi , Behnam Behinaein Hamgini , Zhuhong Zhang

Neural networks (NNs) inspired by the forward-backward algorithm (FBA) are used as equalizers for bandlimited channels with a memoryless nonlinearity. The NN-equalizers are combined with successive interference cancellation (SIC) to…

Information Theory · Computer Science 2024-08-29 Daniel Plabst , Tobias Prinz , Francesca Diedolo , Thomas Wiegart , Georg Böcherer , Norbert Hanik , Gerhard Kramer

Massive multiple input multiple output(MIMO)-based fully-digital receive antenna arrays bring huge amount of complexity to both traditional direction of arrival(DOA) estimation algorithms and neural network training, which is difficult to…

Signal Processing · Electrical Eng. & Systems 2023-01-18 Yiwen Chen , Xichao Zhan , Feng Shu

Networks of superconducting optoelectronic neurons are investigated for their near-term technological potential and long-term physical limitations. Networks with short average path length, high clustering coefficient, and power-law degree…

Neural and Evolutionary Computing · Computer Science 2018-05-17 Jeffrey M. Shainline , Jeff Chiles , Sonia M. Buckley , Adam N. McCaughan , Richard P. Mirin , Sae Woo Nam

Nowadays, long distance optical fibre transmission systems use polarization diversity multiplexed signals to enhance transmission performance. Distributed acoustic sensors (DAS) use the same propagation medium ie. single mode optical fibre,…

Signal Processing · Electrical Eng. & Systems 2020-07-03 Sterenn Guerrier , Christian Dorize , Elie Awwad , Jérémie Renaudier

Wireless communications over fast fading channels are challenging, requiring either frequent channel tracking or complicated signaling schemes such as orthogonal time frequency space (OTFS) modulation. In this paper, we propose…

Information Theory · Computer Science 2020-11-30 Hongyang Zhang , Xiaojing Huang , J. Andrew Zhang

This paper presents a method for approximating a class of complex transfer function matrices corresponding to physically realizable complex linear quantum systems. The class of linear quantum systems under consideration includes…

Systems and Control · Computer Science 2011-07-29 Ian R. Petersen

Coherent states have been increasingly considered in optical quantum communications (OQCs). With the inherent non-orthogonality of coherent states, non-orthogonal multiple-access (NOMA) naturally lends itself to the implementation of…

Quantum Physics · Physics 2025-12-09 Zhichao Dong , Xiaolin Zhou , Yongkang Chen , Wei Ni , Ekram Hossain , Xin Wang

In this paper, we propose a scheme that utilizes the optimization ability of artificial intelligence (AI) for optimal transceiver-joint equalization in compensating for the optical filtering impairments caused by wavelength selective…

Signal Processing · Electrical Eng. & Systems 2021-09-29 Zhiqun Zhai , Hexun Jiang , Mengfan Fu , Lei Liu , Lilin Yi , Weisheng Hu , Qunbi Zhuge

Compensating for nonlinear effects using digital signal processing (DSP) is complex and computationally expensive in long-haul optical communication systems due to intractable interactions between Kerr nonlinearity, chromatic dispersion…

Signal Processing · Electrical Eng. & Systems 2023-08-24 Naveenta Gautam , Sai Vikranth Pendem , Brejesh Lall , Amol Choudhary

In distributed optimization and machine learning, multiple nodes coordinate to solve large problems. To do this, the nodes need to compress important algorithm information to bits so that it can be communicated over a digital channel. The…

Optimization and Control · Mathematics 2020-12-02 Sindri Magnússon , Hossein Shokri-Ghadikolaei , Na Li

Neural networks have proven effective for solving many difficult computational problems. Implementing complex neural networks in software is very computationally expensive. To explore the limits of information processing, it will be…

Neural and Evolutionary Computing · Computer Science 2017-04-20 Jeffrey M. Shainline , Sonia M. Buckley , Richard P. Mirin , Sae Woo Nam

The achievable information rates of optical communication networks have been widely increased over the past four decades with the introduction and development of optical amplifiers, coherent detection, advanced modulation formats, and…

Information Theory · Computer Science 2017-05-16 Tianhua Xu

In optical transport networks, signal lightpaths between two terminal nodes can be different due to current network conditions. Thus the transmission distance and accumulated dispersion in the lightpath cannot be predicted. Therefore, the…

Information Theory · Computer Science 2018-05-09 Tianhua Xu , Gunnar Jacobsen , Jie Li , Mark Leeson , Sergei Popov

In this study, we experimentally investigate the application of a transient signal with complex frequencies to the absorption and transmission of sound waves. Indeed, the emission of a wave with an exponentially varying amplitude in time is…

Applied Physics · Physics 2025-03-18 Anis Maddi , Gaelle Poignand , Vassos Achilleos , Vincent Pagneux , Guillaume Penelet

Massive machine type communication (mMTC) has attracted new coding schemes optimized for reliable short message transmission. In this paper, a novel deep learning based near-orthogonal superposition (NOS) coding scheme is proposed for…

Information Theory · Computer Science 2021-11-12 Chenghong Bian , Mingyu Yang , Chin-Wei Hsu , Hun-Seok Kim