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Adaptive Equalization Techniques for ISI Mitigation in PAM System over Rayleigh Fading Channel [PDF]

ITM Web of Conferences
Pulse Amplitude Modulation (PAM) system with high application advantages of low implementation complexity and high spectral efficiency have been widely used in modern communication design like WI-FI, Bluetooth or 5G.
Zhou Zhongqian
doaj   +1 more source

Optimization of an OFDM Rayleigh fading system

International Journal of Communication Systems, 2006
AbstractAn OFDM cellular system operating in a Rayleigh fading environment is described and its spectral efficiency is estimated in terms of the theoretically achievable average channel capacity (in the Shannon sense) per user. The analysis covers the operation over a downlink cellular time‐varying link and leads to a simple novel closed‐form ...
openaire   +2 more sources

Beyond Nanoporosity: A CO2‐Conditioned Glassy Matrix Contributes to the Brittle‐to‐Ductile Transition of Nanocellular Polyetherimide

Advanced Materials, EarlyView.
The mechanical performance of nanocellular polyetherimide cannot be explained by nanoporosity alone. It is shown that CO2 saturation and desorption leave a distinct mechanical signature in the glassy matrix before foaming. This matrix contribution provides a new route to understand and optimize the brittle to ductile transition in nanocellular polymers.
Félix Lizalde‐Arroyo, Frederik Van Loock, Victoria Bernardo, Tuuli Peltola, René Bes, Alberto Tena, Miguel Ángel Rodríguez‐Pérez, Judith Martín‐de León   +7 more
wiley   +1 more source

Latency and Networking Aspects of Adaptive Modems over Slow Indoors Rayleigh Fading Channels

, 1999
Adaptive modulation exploits the time-variant channel capacity fluctuation of fading channels using a range of different modem modes. Specifically, no information is transmitted when the instantaneous channel signal-to-noise ratio (SNR) is low, and ...
J.M. Torrance, J. M. Torrance, Torrance, J.M., L. Hanzo, Hanzo, L.   +4 more
core   +2 more sources

Capacity analysis over fractional order Rayleigh fading channel under additive white generalized Gaussian noise

IET Communications
This study presents an innovative fractional order Rayleigh fading model that can be used for channel capacity estimation in the presence of additive white generalized Gaussian noise.
Mehran Kakavand, Mohammadreza Hassannejad Bibalan, Mina Baghani   +2 more
doaj   +1 more source

On‐Chip Photonic Neural Network Architectures

Advanced Optical Materials, EarlyView.
This review presents a comprehensive overview of on‐chip photonic neural network architectures, covering key photonic building blocks, representative network types, and emerging applications. Recent advances, implementation challenges, and future directions are examined, highlighting the potential of integrated photonics to enable ultrafast, energy ...
Seokjin Hong, Berkay Neseli, Seungyeon Cho, Seungsoo Lee, Yeonjun Kim, Seungyoon Choi, Hyo‐Hoon Park, Hamza Kurt   +7 more
wiley   +1 more source

New Golay decoding method using auto-encoder and OSD

ICT Express
In this study, we explore the potential of leveraging machine learning techniques, specifically auto-encoders (AE), for the decoding of linear block codes.
Hyun Woo Cho, Young Joon Song
doaj   +1 more source

A Unified Approach to BER Analysis of Synchronous Downlink CDMA Systems with Random Signature Sequences in Fading Channels with Known Channel Phase

EURASIP Journal on Advances in Signal Processing, 2008
A detailed analysis of the multiple access interference (MAI) for synchronous downlink CDMA systems is carried out for BPSK signals with random signature sequences in Nakagami-m fading environment with known channel phase.
M. Deriche, A. Zerguine, A. U. H. Sheikh, M. Moinuddin   +3 more
doaj   +1 more source

Resource-Efficient Fusion over Fading and Non-Fading Reporting Channels for Cooperative Spectrum Sensing

Sensors, 2015
Recently, a novel resource-efficient technique for the reporting channel transmissions in cooperative spectrum sensing was proposed. In this technique, secondary users are allowed to simultaneously send their local decisions to the fusion center, saving ...
Dayan Adionel Guimarães, Guilherme Pedro Aquino   +1 more
doaj   +1 more source

Visible‐Blind Near‐Infrared Organic Vision Sensors for Imaging in Adverse Environmental Conditions

Advanced Optical Materials, EarlyView.
This work presents high‐performance visible‐blind NIR OPDs enabled by a multilayer optical modulation layer. The devices achieve strong visible‐light suppression and enhanced NIR sensitivity, enabling robust imaging in foggy or low‐light environments.
Baozhong Deng, Kean Lu, Zhouyi Lu, Yi Li, Gaoyu Dai, Luqiao Yin, Zihan Wang, Bruno Grandidier, Tao Xu, Furong Zhu   +9 more
wiley   +1 more source