Results 91 to 100 of about 50,918 (285)

Limited Feedback for 3D Massive MIMO under 3D-UMa and 3D-UMi Scenarios

open access: yesInternational Journal of Antennas and Propagation, 2015
For three-dimensional (3D) massive MIMO utilizing the uniform rectangular array (URA) in the base station (BS), we propose a limited feedback transmission scheme in which the channel state information (CSI) feedback operations for horizontal domain and ...
Zheng Hu, Shaoli Kang, Xin Su
doaj   +1 more source

Codebook-based precoding for generalized spatial modulation with diversity

open access: yesEURASIP Journal on Wireless Communications and Networking, 2019
This paper investigates codebook-based precoding for spatial modulation (SM) and generalized spatial modulation (GSM) systems. Codebook-based precoding allows the system to dispense with full channel state information at the transmitter (CSIT).
Essam Sourour
doaj   +1 more source

Application Simulation Based on Floating Codebook Encryption

open access: yes, 2009
[[abstract]]Encryption is a treatment for hiding a piece of information via a specific method in order to make the information unreadable without the piece of information of the specific method.
Li,Chih Pan
core  

CEO Duality and Corporate Social Responsibility. A Literature Review With a Focus on Country Effects

open access: yesCorporate Social Responsibility and Environmental Management, EarlyView.
ABSTRACT In recent years, many researchers have become interested in the relationship between CEO duality (where one individual serves as both CEO and board chair) and CSR outcomes. Given the varied research results, this structured literature review concentrates on the country effects of this dynamic link.
Patrick Velte
wiley   +1 more source

Designing a resource-allocating codebook for patch-based visual object recognition

open access: yes, 2010
The state-of-the-art approach in visual object recognition is the use of local information extracted at several points or image patches from an image. Local information at specific points can deal with object shape variability and partial occlusions. The
Ramanan, Amirthalingam
core  

Intersecting Structures and Gendered Perceptions in Entrepreneurship: A Life‐Course Comparison of Institutional Inclusivity in Italy and the United Kingdom

open access: yesCorporate Social Responsibility and Environmental Management, EarlyView.
ABSTRACT Using Global Entrepreneurship Monitor (GEM) 2024 data for Italy and the United Kingdom, this study examines how gender gaps in entrepreneurial perceptions, measured as perceived entrepreneurial skills and fear of failure, vary across age and education within contrasting institutional regimes.
Giusy Sica   +4 more
wiley   +1 more source

A Superimposed Codebook Design for Downlink Sparse Code Multiple Access Visible Light Communication System

open access: yesPhotonics
The capacity performance of visible light communication (VLC) systems can be improved by using sparse code multiple access (SCMA). Since SCMA is a codebook-based multiple access scheme, the design of the codebook is crucial.
Jingxuan Dong   +3 more
doaj   +1 more source

Sustainable curriculum innovation through educational design research in conservatoire education

open access: yesThe Curriculum Journal, EarlyView.
Abstract This study reported a four‐year educational design research (EDR) project at a Dutch conservatoire, where researchers and practitioners collaboratively redesigned the Bachelor of Music curriculum. Through iterative, practitioner‐led cycles of exploration, prototyping, implementation, and evaluation, the intervention produced a shared ...
Tamara Rumiantsev   +2 more
wiley   +1 more source

Codebook Generation Using Partition and Agglomerative Clustering

open access: yesAdvances in Electrical and Computer Engineering, 2011
In this paper, we present a codebook generation algorithm to produce a codebook with lower distortion. Our method combines a fast codebook generation algorithm (CGAUCD) with doubling technique and fast agglomerative clustering algorithm (FACA) to ...
CHANG, C.-T., LAI, J. Z. C., JENG, M.-D.
doaj   +1 more source

Investigating Perceptions of the Eating Disorder Examination‐Questionnaire Among Undergraduate Students: A Qualitative Approach

open access: yesInternational Journal of Eating Disorders, EarlyView.
ABSTRACT Objective Quantitative methods that have evaluated the Eating Disorder Examination Questionnaire (EDE‐Q) have found consistent evidence that the original four‐factor structure does not replicate across diverse samples and genders. Emerging evidence in the broader psychology literature shows that qualitative methods can provide nuanced insight ...
Katarina L. Huellemann   +3 more
wiley   +1 more source

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