Results 21 to 30 of about 34,233 (259)

Joint Coding Design based on CSK and FSM

Guangtongxin yanjiu, 2021
In the Visible Light Communication (VLC) system based on circle Color Shift Keying (CSK) modulation constellation, the bit error rate performance is poorer under certain number of modulation order.
LI Jia-hui, LI Zong-yan, LI Shi-yin
doaj   +3 more sources

Designing Good Multi-Dimensional Constellations [PDF]

IEEE Wireless Communications Letters, 2012
In this letter we consider the design of multi-dimensional compact constellations that minimize the average symbol energy for a given minimum Euclidian distance between constellation points. We formulate the constellation design as a non-convex quadratically constrained quadratic programming. We propose a simple and efficient optimization method, which
Marko Beko, Rui Dinis 0001
openaire   +2 more sources

SCMA codebook design based on resource block constellation

Tongxin xuebao, 2018
Aiming at the problems of typical sparse code multiple access codebook design scheme based on multidimensional mother constellation that the complexity is high and the minimum Euclidean distance between constellation points on resource blocks is ...
Xiaotao SHAO, Mingkun GUO, Wei YANG
doaj   +2 more sources

Cross-Domain Fusion Constellation Design of Communication, Navigation and Remote Sensing

Applied Sciences, 2023
Low earth orbit (LEO) mega-constellations have once again triggered a wave of space-based system construction. On the one hand, LEO communication, LEO navigation, LEO remote sensing constellations and so on are proposed.
Junxiang Qin, Xuan Li, Xiaotian Ma, Xiye Guo, Jun Yang   +4 more
doaj   +1 more source

On the Design of Super Constellations

IEEE Open Journal of the Communications Society
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), an innovative modulation technique designed to achieve these ultra high data rate demands.
Thrassos K. Oikonomou, Dimitrios Tyrovolas, Sotiris A. Tegos, Panagiotis D. Diamantoulakis, Panagiotis G. Sarigiannidis, George K. Karagiannidis   +5 more
openaire   +3 more sources

Linear Optimal Signal Designs for Multi-Color MISO-VLC Systems Adapted to CCT Requirement

IEEE Access, 2018
In visible light communications (VLC), multi-color light emitting diodes (LEDs) have higher modulation bandwidth and better chromatic property compared with traditional phosphor-converted LEDs. For multi-color multi-input single-output (MISO) VLC systems,
Ye Xiao, Yi-Jun Zhu, Yan-Yu Zhang, Zheng-Guo Sun   +3 more
doaj   +1 more source

Constellation design for channels affected by phase noise [PDF]

2013 IEEE International Conference on Communications (ICC), 2013
In this paper we optimize constellation sets to be used for channels affected by phase noise. The main objective is to maximize the achievable mutual information of the constellation under a given power constraint. The mutual information and pragmatic mutual information of a given constellation is calculated approximately assuming that both the channel
KAYHAN, FARBOD, MONTORSI, Guido
openaire   +2 more sources

Phase Angle as an Early Functional Biomarker of Cancer‐Related Fatigue in Pediatric Oncology: A Prospective Longitudinal Study

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Pediatric cancer remains a leading cause of morbidity and mortality worldwide, particularly in low‐and middle‐income countries. Cancer treatment may impair nutritional status, alter body composition, and exacerbate cancer‐related fatigue (CRF).
Luís Carlos Lopes‐Junior, Luiz Claudio Barreto Silva Neto, Fabiano Kenji Haraguchi, Letícia Batista de Azevedo, Marcelo Brenner Nascimento Carlini, Raphael Manhães Pessanha, Mariana Rabello Laignier, Wesley Rocha Grippa, Tania Mara Lopes Bitti Bortolini, Gláucia Zouain‐Figueiredo, Regina Aparecida Garcia de Lima, Liliana Vasquez   +11 more
wiley   +1 more source

Comparative Evaluation of Hemodiafiltration, Hemoperfusion, and Standard Hemodialysis on Efficacy, Inflammatory Control, Dialysis Adequacy, and Safety in End‐Stage Renal Disease: A Prospective Observational Study

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Chronic micro‐inflammation in patients with end‐stage renal disease (ESRD) is a significant driver of cardiovascular complications and diminished quality of life. While standard hemodialysis (SHD) effectively manages small‐molecule clearance, its ability to remove medium‐to‐large uremic toxins—the primary catalysts of systemic ...
Hongwei Zuo, Weisi Dai, Jie Mao, Mei Ye, Xingshan Lu, Xiaocui Zhang   +5 more
wiley   +1 more source

Multidimensional Constellation Design Based on Geometric Shaping for MISO VLC With Per-LED Optical Power Constraints

IEEE Photonics Journal
Visible light communication (VLC) integrates illumination and communication, offering significant potential for 6G mobile communications. In 6G communications, reliability and low latency are critical.
Bo Gao, Jia-Ning Guo, Jian Zhang, Yan-Yu Zhang, Dun Li   +4 more
doaj   +1 more source