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Millimeter-wave (mmWave) communication is a promising technology to meet the ever-growing data traffic of vehicular communications. Unfortunately, more frequent channel estimations are required in this spectrum due to the narrow beams…

信号处理 · 电气工程与系统科学 2019-11-06 Sina Shaham , Matthew Kokshoorn , Ming Ding , Zihuai Lin , Mahyar Shirvanimoghaddam

A free-space optical communication system using non-mode-selective photonic lantern (PL) based coherent receiver is studied. Based on the simulation of photon distribution, the power distribution at the single-mode fiber end of the PL is…

信号处理 · 电气工程与系统科学 2020-11-25 Bo Zhang , Renzhi Yuan , Jianfeng Sun , Julian Cheng , Mohamed-Slim Alouini

This paper addresses the problem of data detection for a massive Multiple-Input-Multiple-Output (MIMO) base station which utilizes 1-bit Analog-to-Digital Converters (ADCs) for quantizing the uplink signal. The existing literature on…

信息论 · 计算机科学 2018-06-29 Daniel Plabst , Jawad Munir , Amine Mezghani , Josef A. Nossek

Streaming codes represent a packet-level FEC scheme for achieving reliable, low-latency communication. In the literature on streaming codes, the commonly-assumed Gilbert-Elliott channel model, is replaced by a more tractable,…

信息论 · 计算机科学 2021-04-15 Vinayak Ramkumar , Myna Vajha , P. Vijay Kumar

The bound of the information transmission rate of direct current biased optical orthogonal frequency division multiplexing (DCO-OFDM) for visible light communication (VLC) with finite-alphabet inputs is yet unknown, where the corresponding…

信息论 · 计算机科学 2022-02-03 Ruixin Yang , Shuai Ma , Zihan Xu , Hang Li , Xiaodong Liu , Xintong Ling , Xiong Deng , Xun Zhang , Shiyin Li

The low earth orbit (LEO) satellite network is undergoing rapid development with the maturing of satellite communications and rocket launch technologies, and the demand for a global coverage network. However, current satellite communication…

信息论 · 计算机科学 2023-08-10 Zhuoao Xu , Gaojie Chen , Ryan Fernandez , Yue Gao , Rahim Tafazolli

OFDM is widely adopted in modern wireless communication systems, but its power efficiency is limited by high envelope fluctuations. Although various high power-efficiency waveforms have been proposed, most are incompatible with the CP-OFDMA…

信号处理 · 电气工程与系统科学 2025-10-29 Yiming Zhu , Zhuhong Zhu , Xiaodong Xu , Hongwei Hou , Wenjin Wang , Rui Ding

The continuously increasing IP data traffic demand, with geometrical growth rate exceeding 26%, requires a large transmission capacity increment from the fiber optical infrastructure. As the deploy of new fiber cables requires extensive…

系统与控制 · 电气工程与系统科学 2023-04-25 Andrea D'Amico , Giacomo Borraccini , Vittorio Curri

In order to simulate elastic wave propagation in a complex structure with inhomogeneous media, we often need to obtain the propagating eigenmodes of an elastic waveguide. As the waveguide is assumed uniform in one direction, the original…

计算物理 · 物理学 2021-08-18 An Qi Ge , Ming Wei Zhuang , Jie Liu , Qing Huo Liu

To address the complexities of spatial non-stationary (SnS) effects and spherical wave propagation in near-field channel estimation (CE) for extremely large-scale multiple-input multiple-output (XL-MIMO) systems, this paper proposes an…

信号处理 · 电气工程与系统科学 2025-12-01 Shuhang Yang , Puguang An , Peng Yang , Xianbin Cao , Dapeng Oliver Wu , Tony Q. S. Quek

We present a bi-waveguide paradigm composed of joined Positive-Index-Material PIM)/Negative-Index-Material (NIM) slabs, demonstrating ultra-slow light propagation stemming from the competing propagation disposition in the PIM and NIM…

光学 · 物理学 2020-06-17 S. Foteinopoulou , J. P. Vigneron

Signal clipping is a classic technique for reducing peak-to-average power ratio (PAPR) in orthogonal frequency division multiplexing (OFDM) systems. It has been widely applied in consumer electronic devices owing to its low complexity and…

信号处理 · 电气工程与系统科学 2024-02-20 Yuyang Du , Liang Hao , Yiming Lei , Qun Yang , Shiqi Xu

Spectrally and energy efficient orthogonal frequency division multiplexing (SEE-OFDM) is an optical OFDM technique based on combining multiple asymmetrically clipped optical OFDM (ACO-OFDM) signals into one OFDM signal. By summing different…

信息论 · 计算机科学 2015-10-29 Emily Lam , Sarah Kate Wilson , Hany Elgala , Thomas D. C. Little

Spatially distributed cavity (SDC) lasers are a promising technology for simultaneous light information and power transfer (SLIPT), offering benefits such as increased mobility and intrinsic safety, which are advantageous for various…

系统与控制 · 电气工程与系统科学 2026-02-24 Mingliang Xiong , Zeqian Guo , Qingqing Zhang , Qingwen Liu , Gang Wang , Gang Li , Bin He

One of the important applications of Golay complementary sets (GCSs) is the reduction of peak-to-mean envelope power ratio (PMEPR) in orthogonal frequency division multiplexing (OFDM) systems. OFDM has played a major role in modern wireless…

信息论 · 计算机科学 2025-01-06 Abhishek Roy , Sudhan Majhi , Subhabrata Paul

Millimeter-wave (mmWave) communications are highly promising to improve the capacity of modern wireless networks, while the physical layer security (PLS) techniques hold great potential to enhance the critical secrecy performance therein.…

信息论 · 计算机科学 2020-09-07 Yuanyu Zhang , Yulong Shen , Xiaohong Jiang , Shoji Kasahara

Motivated by problems where the response is needed at select localized regions in a large computational domain, we devise a novel finite element discretization that results in exponential convergence at pre-selected points. The two key…

数值分析 · 数学 2016-08-03 Murthy N. Guddati , Vladimir Druskin , Ali Vaziri Astaneh

High-density communication through optical fiber is made possible by Wavelength Division Multiplexing, which is the simultaneous transmission of many discrete signals at different optical frequencies. Vast quantities of data may be…

光学 · 物理学 2020-02-19 Paul Fisher , Matteo Villa , Francesco Lenzini , Mirko Lobino

This paper analyzes the unified performance of energy detection (ED) of spectrum sensing (SS) over generalized fading channels in cognitive radio (CR) networks. The detective performance of SS schemes will be obviously affected by fading…

信息论 · 计算机科学 2018-01-01 He Huang , Chaowei Yuan

An emerging technology to enhance the spectral efficiency (SE) and energy efficiency (EE) of wireless communication systems is reconfigurable intelligent surface (RIS), which is shown to be very powerful in single-carrier systems. However,…

信息论 · 计算机科学 2024-01-23 Mohammad Soleymani , Ignacio Santamaria , Aydin Sezgin , Eduard Jorswieck
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