Results 21 to 30 of about 76,758 (254)

Interplay of NOMA and GSSK: Detection Strategies and Performance Analysis

open access: yesIEEE Open Journal of Vehicular Technology, 2023
Non-orthogonal multiple access (NOMA) was identified as a technology enabler for the fifth generation and beyond networks, due to the prominent advantages achieved when integrating NOMA with other wireless technologies.
Rajalekshmi Kishore   +6 more
doaj   +1 more source

Accurate Performance Analysis of Coded Large-Scale Multiuser MIMO Systems with MMSE Receivers

open access: yesSensors, 2019
In this paper, we estimate the uplink performance of large-scale multi-user multiple-input multiple-output (MIMO) networks. By applying minimum-mean-square-error (MMSE) detection, a novel statistical distribution of the signal-to-interference-plus-noise ...
Kai Zhai, Zheng Ma, Xianfu Lei
doaj   +1 more source

Exact Pairwise Error Probability of Differential Space-Time Codes in Spatially Correlated Channels [PDF]

open access: yes2006 IEEE International Conference on Communications, 2006
In this paper, we derive an analytical expression for the exact pairwise error probability (PEP) of a differential space-time coded system operating over a spatially correlated slow fading channel. An analytic model for spatial correlation is used which fully accounts for antenna spacing, antenna geometry and non-isotropic scattering distributions ...
Tharaka A. Lamahewa   +2 more
openaire   +1 more source

Space-Time Frequency Block Codes in LTE-DSRC Hybrid Vehicular Networks

open access: yesInternational Journal of Technology, 2022
In vehicular communication systems, Dedicated Short Range Communication (DSRC) is said to provide fast communication and high security between vehicles. Simultaneously, Long-Term Evolution (LTE) is used due to its high bandwidth, low latency, and high
Azlan Abd Aziz   +4 more
doaj   +1 more source

M-PSK Cooperative Trellis Codes for Coordinate Interleaved Coded Cooperation

open access: yesEURASIP Journal on Wireless Communications and Networking, 2009
M-PSK cooperative trellis codes are proposed for two-user coordinate interleaved coded cooperation operating over quasistatic Rayleigh fading channels.
Özgür Oruç   +1 more
doaj   +2 more sources

Space-Time Codes for Wireless Optical Communications

open access: yesEURASIP Journal on Advances in Signal Processing, 2002
A space-time channel coding technique is presented for overcoming turbulence-induced fading in an atmospheric optical heterodyne communication system that uses multiple transmit and receive apertures. In particular, a design criterion for minimizing the
Tarokh Vahid   +2 more
doaj   +1 more source

Performance Evaluation of STBC MIMO Systems with Linear Precoding [PDF]

open access: yesTelfor Journal, 2010
It is known that transmit channel side information (CSIT) is used to enhance the performance of space-time block codes based multi-antenna communication links.
I. Vermeşan   +4 more
doaj  

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

open access: yesPediatric 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   +11 more
wiley   +1 more source

On Hierarchical Composite Endpoints in Pediatric Cancer Supportive Care: Illustrative Examples From Two Multi‐Center Phase‐III Randomized Clinical Trials

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Pediatric supportive care clinical trials often involve multiple clinically important outcomes, complicating trial interpretation. Hierarchical composite endpoints (HCEs) provide a framework to integrate key outcomes according to clinical importance.
Willem H. Collier   +11 more
wiley   +1 more source

An Error Rate Comparison of Power Domain Non-Orthogonal Multiple Access and Sparse Code Multiple Access

open access: yesIEEE Open Journal of the Communications Society, 2021
Non-orthogonal Multiple Access (NOMA) has been envisioned as one of the key enabling techniques to fulfill the requirements of future wireless networks. The primary benefit of NOMA is higher spectrum efficiency compared to Orthogonal Multiple Access (OMA)
Qu Luo   +6 more
doaj   +1 more source

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