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In the evolving landscape of sixth-generation (6G) wireless networks, which demand ultra high data rates, this study introduces the concept of super constellation communications. Also, we present super amplitude phase shift keying (SAPSK),…

Emerging systems such as Internet-of-things (IoT) and machine-to-machine (M2M) communications have strict requirements on the power consumption of used equipments and associated complexity in the transceiver design. As a result,…

Signal Processing · Electrical Eng. & Systems 2021-01-26 Sultan Aldirmaz-Colak , Erdogan Aydin , Yasin Celik , Yusuf Acar , Ertugrul Basar

Optical wireless communication (OWC) leveraging single-photon avalanche diode (SPAD) arrays offers exceptional sensitivity for photon-starving links. However, the inherent dead time of SPADs critically limits achievable data rates by…

Signal Processing · Electrical Eng. & Systems 2026-05-28 Chen Wang , Zhiyong Xu , Jingyuan Wang , Jianhua Li , Weifeng Mou , Huatao Zhu

We present experimental measurements on a model quantum system that demonstrate our ability to dramatically suppress qubit error rates by the application of optimized dynamical decoupling pulse sequences in a variety of experimentally…

In-band full-duplex relay (FDR) has attracted much attention as an effective solution to improve the coverage and spectral efficiency in wireless communication networks. The basic problem for FDR transmission is how to eliminate the…

Information Theory · Computer Science 2023-07-10 Pu Yang , Xiang-Gen Xia , Qingyue Qu , Han Wang , Yi Liu

Out-of-distribution (OOD) detection is essential for deploying deep learning models in open-world environments. Existing approaches, such as energy-based scoring and gradient-projection methods, typically rely on high-dimensional…

Machine Learning · Statistics 2025-11-04 Zhexiao Huang , Weihao He , Shutao Deng , Junzhe Chen , Chao Yuan , Hongxin Wang , Changsheng Zhou

We introduce a high-order dynamical decoupling (DD) scheme for arbitrary system-bath interactions in the weak-coupling regime. Given any decoupling group $\mathcal G$ that averages the interaction to zero, our construction yields pulse…

Quantum Physics · Physics 2026-02-06 Leeseok Kim , Milad Marvian

In order to support diverse scenarios and deployments, the numerology of orthogonal frequency division multiplexing (OFDM) is defined for the parametrization of subcarrier spacing and cyclic prefix (CP). The time-frequency dispersion of…

Signal Processing · Electrical Eng. & Systems 2020-11-10 Xiaoran Liu , Jiao Zhang , Jibo Wei

The emerging orbital angular momentum (OAM) based wireless communication is expected to be a high spectrum-efficiency communication paradigm to solve the growing transmission data rate and limited bandwidth problem. Academic researchers…

Signal Processing · Electrical Eng. & Systems 2024-07-19 Liping Liang , Wenchi Cheng , Wei Zhang , Hailin Zhang

This work proposes a superimposed pilot (SP)-based channel estimation and data detection framework for orthogonal time-frequency space (OTFS) scheme, wherein low-powered pilots are superimposed on to data symbols in the delay-Doppler…

Signal Processing · Electrical Eng. & Systems 2020-10-29 Himanshu B. Mishra , Prem Singh , Abhishek K. Prasad , Rohit Budhiraja

In this paper, we consider diffusive molecular communication (MC) systems affected by signal-dependent diffusive noise, inter-symbol interference, and external noise. We design linear and nonlinear fractionally-spaced equalization schemes…

Information Theory · Computer Science 2020-04-28 Trang Ngoc Cao , Vahid Jamali , Nikola Zlatanov , Phee Lep Yeoh , Jamie Evans , Robert Schober

Deep neural networks have found widespread adoption in solving complex tasks ranging from image recognition to natural language processing. However, these networks make confident mispredictions when presented with data that does not belong…

Machine Learning · Computer Science 2020-12-16 Deepak Ravikumar , Sangamesh Kodge , Isha Garg , Kaushik Roy

Aiming at bridging the gap between the maximum likelihood decoding (MLD) and the suboptimal iterative decodings for short or medium length LDPC codes, we present a generalized ordered statistic decoding (OSD) in the form of syndrome…

Information Theory · Computer Science 2008-05-16 Guangwen Li , Guangzeng Feng

Orthogonal frequency division multiplexing (OFDM) is an emerging research field of wireless communication. It is one of the most proficient multi-carrier transmission techniques widely used today as broadband wired & wireless applications…

Networking and Internet Architecture · Computer Science 2014-04-09 Md. Munjure Mowla , S. M. Mahmud Hasan

Vector orthogonal frequency division multiplexing (V-OFDM) is a general system that builds a bridge between OFDM and single-carrier frequency domain equalization in terms of intersymbol interference and receiver complexity. In this paper,…

Information Theory · Computer Science 2015-12-22 Qi Feng , Xiang-Gen Xia , Zhihui Ye , Naitong Zhang

In this paper, the design and analysis of a new bandwidth-efficient signaling method over the bandlimited intensity-modulated direct-detection (IM/DD) channel is presented. The channel can be modeled as a bandlimited channel with…

Information Theory · Computer Science 2015-03-19 Mehrnaz Tavan , Erik Agrell , Johnny Karout

In orthogonal frequency-division multiplexing (OFDM) systems operating over rapidly time-varying channels, the orthogonality between subcarriers is destroyed leading to inter-carrier interference (ICI) and resulting in an irreducible error…

Information Theory · Computer Science 2009-11-03 Erdal Panayirci , Hakan Dogan , H. Vincent Poor

This paper considers base station cooperation (BSC) strategies for the uplink of a multi-user multi-cell high frequency reuse scenario where distributed iterative detection (DID) schemes with soft/hard interference cancellation algorithms…

Information Theory · Computer Science 2014-01-03 Peng Li , Rodrigo C. de Lamare

The proof test and debugging of the multi-pulsed electron accelerator, Dragon-2,requires a thorough comprehension of the quality of the beams. This puts forward a rigid requirement on the measurement system that it should have the ability…

In recent years, there has been a growing interest in the use of single-photon avalanche diode (SPAD) in optical wireless communication (OWC). SPAD operates in the Geiger mode and can act as a photon counting receiver obviating the need for…

Information Theory · Computer Science 2022-06-07 Shenjie Huang , Yichen Li , Cheng Chen , Mohammad Dehghani Soltani , Robert Henderson , Majid Safari , Harald Haas
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