Results 111 to 120 of about 42,286 (292)

Queueing network model of a call center with customer retrials and impatient customers [PDF]

Известия Саратовского университета. Новая серия: Математика. Механика. Информатика
The subject of mathematical study and modelling in this paper is an inbound call center that receives calls initiated by customers. A closed exponential queueing network with customer retrials and impatient customers is used as a stochastic model of call
Rusilko, Tatiana V., Pankov, Andrey V.
doaj   +1 more source

Inference for double Pareto lognormal queues with applications [PDF]

, 2008
In this article we describe a method for carrying out Bayesian inference for the double Pareto lognormal (dPlN) distribution which has recently been proposed as a model for heavy-tailed phenomena. We apply our approach to inference for the dPlN/M/1 and
Lillo Rodríguez, Rosa Elvira, Ramírez Cobo, Josefa, Wilson, Simon P., Wiper, Michael Peter   +3 more
core  

Path‐Based Deep Reinforcement Learning for On‐Board Routing in Satellite Constellation Networks

International Journal of Satellite Communications and Networking, EarlyView.
ABSTRACT Efficient usage of available network resources is a crucial factor for broadband services in interconnected satellite constellations. To meet required quality of service standards under heavy network loads, it is essential to optimize traffic distribution among the intersatellite links. To address this challenge, we propose an adaptive traffic
Manuel M. H. Roth, Thomas Jerkovits, Anupama Hegde, Thomas Delamotte, Andreas Knopp   +4 more
wiley   +1 more source

Tracing Three Decades of Low Earth Orbit Satellite Communication Development: A Bibliometric and Main Path Analysis of Network Architectures, Protocol Evolution, and Emerging Intelligent Services

International Journal of Satellite Communications and Networking, EarlyView.
ABSTRACT Low Earth Orbit (LEO) satellite communication systems have evolved into a critical component of global broadband networks, enabling wide‐area connectivity, IoT services, and intelligent multilayer satellite–terrestrial integration. Despite rapid advancements in constellation deployment, routing mechanisms, resource management, and LEO–5G/6G ...
Wei‐Hao Su, Ya‐Chen Chuang, Long‐Sheng Chen   +2 more
wiley   +1 more source

Stochastic modelling of energy harvesting for low power sensor nodes [PDF]

, 2012
Battery lifetime is a key impediment to long-lasting low power sensor nodes. Energy or power harvesting mitigates the ependency on battery power, by converting ambient energy into electrical energy.
De Cuypere, Eline, De Turck, Koen, Fiems, Dieter   +2 more
core  

Isolation, Insularity and Resilience: A Review of the Geophysical, Socioeconomic, and Environmental Vulnerabilities of Gran Canaria and Lesvos Islands for Policy Interventions to Global Change

Sustainable Development, EarlyView.
ABSTRACT The dynamic nature of small islands being geographically isolated and their perceived connectedness with global networks complicates research attempts to draw general conclusions on whether insularity leads to marginalization or strengthens their resilience for sustainable development.
Toheeb Lekan Jolaosho, Mazen Marouani, Takwa Boughanmi   +2 more
wiley   +1 more source

Does Economic Growth Drive Equitable Water and Sanitation Access? Assessing Inequality Reduction Across 64 Nations

Sustainable Development, EarlyView.
ABSTRACT This article examines whether economic growth reduces inequalities in access to water and sanitation across 64 countries over an average period of 13.5 years. Drawing on disaggregated data by income quintiles and rural–urban location, and employing ordinary least squares (OLS), two‐stage least squares (2SLS), and Seemingly Unrelated Regression
Marcos García‐López, Samara López‐Ruiz, Gabriela Cuadrado‐Quesada   +2 more
wiley   +1 more source

Exploring non-Markovian dynamics: Stochastic analysis of a single-server retrial queue with recurrent clients and balking behavior under extended Bernoulli vacations

Heliyon
The present study delves into the dynamics of a specific form of queueing system described as an M/G/1 retrial queue. Here, the queue comprises two distinct categories of clients: transit clients and recurrent clients.
Kalaiselvi J, Saravanarajan MC
doaj   +1 more source

Association of insomnia, insulin resistance traits, and cardiovascular disease risk: A two‐step Mendelian randomization study

Sleep Research, EarlyView.
The causal roles of metabolic traits in mediating the effects of insomnia on CVDs. CAD, coronary artery disease; HbA1c, hemoglobin A1c; HDL‐C, high‐density lipoprotein cholesterol; IR, insulin resistance; MI, myocardial infarction; TG, triglyceride; T2DM, type 2 diabetes.
Binhe Yu, Yanmin Xu, Xiaoyu Wang, Shuo Ye, Ruixiang Cui, Yujing Sun, Meng Li, Yan Li, Wenhui Yuan, Sheng Guo, Zhigang Chen, Xiaohong Kang, Sizhi Ai   +12 more
wiley   +1 more source

On Queueing Processes with Bulk Service

Journal of the Royal Statistical Society Series B: Statistical Methodology, 1954
Summary A mathematical investigation has been made of a simple queueing process in which customers arrive at random, form a single queue in order of arrival, and are served in batches, the size of each batch having a fixed maximum. In most of the results obtained the time intervals between successive occasions of service are assumed to ...
openaire   +2 more sources