NetWare 2018
September 16 - 20, 2018 - Venice, Italy

  • SENSORCOMM 2018, The Twelfth International Conference on Sensor Technologies and Applications
  • SENSORDEVICES 2018, The Ninth International Conference on Sensor Device Technologies and Applications
  • SECURWARE 2018, The Twelfth International Conference on Emerging Security Information, Systems and Technologies
  • AFIN 2018, The Tenth International Conference on Advances in Future Internet
  • CENICS 2018, The Eleventh International Conference on Advances in Circuits, Electronics and Micro-electronics
  • ICQNM 2018, The Twelfth International Conference on Quantum, Nano/Bio, and Micro Technologies
  • FASSI 2018, The Fourth International Conference on Fundamentals and Advances in Software Systems Integration
  • GREEN 2018, The Third International Conference on Green Communications, Computing and Technologies

SoftNet 2018
October 14 - 18, 2018 - Nice, France

  • ICSEA 2018, The Thirteenth International Conference on Software Engineering Advances
  • ICSNC 2018, The Thirteenth International Conference on Systems and Networks Communications
  • CENTRIC 2018, The Eleventh International Conference on Advances in Human-oriented and Personalized Mechanisms, Technologies, and Services
  • VALID 2018, The Tenth International Conference on Advances in System Testing and Validation Lifecycle
  • SIMUL 2018, The Tenth International Conference on Advances in System Simulation
  • SOTICS 2018,The Eighth International Conference on Social Media Technologies, Communication, and Informatics
  • INNOV 2018, The Seventh International Conference on Communications, Computation, Networks and Technologies
  • HEALTHINFO 2018, The Third International Conference on Informatics and Assistive Technologies for Health-Care, Medical Support and Wellbeing

NexTech 2018
November 18 - 22, 2018 - Athens, Greece

  • UBICOMM 2018, The Twelfth International Conference on Mobile Ubiquitous Computing, Systems, Services and Technologies
  • ADVCOMP 2018, The Twelfth International Conference on Advanced Engineering Computing and Applications in Sciences
  • SEMAPRO 2018, The Twelfth International Conference on Advances in Semantic Processing
  • AMBIENT 2018, The Eighth International Conference on Ambient Computing, Applications, Services and Technologies
  • EMERGING 2018, The Tenth International Conference on Emerging Networks and Systems Intelligence
  • DATA ANALYTICS 2018, The Seventh International Conference on Data Analytics
  • GLOBAL HEALTH 2018, The Seventh International Conference on Global Health Challenges
  • CYBER 2018, The Third International Conference on Cyber-Technologies and Cyber-Systems

DigitalWorld 2019
February 24 - 28, 2019 - Athens, Greece

  • ICDS 2019, The Thirteenth International Conference on Digital Society and eGovernments
  • ACHI 2019, The Twelfth International Conference on Advances in Computer-Human Interactions
  • GEOProcessing 2019, The Eleventh International Conference on Advanced Geographic Information Systems, Applications, and Services
  • eTELEMED 2019, The Eleventh International Conference on eHealth, Telemedicine, and Social Medicine
  • eLmL 2019, The Eleventh International Conference on Mobile, Hybrid, and On-line Learning
  • eKNOW 2019, The Eleventh International Conference on Information, Process, and Knowledge Management
  • ALLSENSORS 2019, The Fourth International Conference on Advances in Sensors, Actuators, Metering and Sensing
  • SMART ACCESSIBILITY 2019, The Fourth International Conference on Universal Accessibility in the Internet of Things and Smart Environments

NexComm 2019
March 24 - 28, 2019 - Valencia, Spain

  • ICDT 2019, The Fourteenth International Conference on Digital Telecommunications
  • SPACOMM 2019, The Eleventh International Conference on Advances in Satellite and Space Communications
  • ICN 2019, The Eighteenth International Conference on Networks
  • ICONS 2019, The Fourteenth International Conference on Systems
  • MMEDIA 2019, The Eleventh International Conference on Advances in Multimedia
  • PESARO 2019, The Ninth International Conference on Performance, Safety and Robustness in Complex Systems and Applications
  • CTRQ 2019, The Twelfth International Conference on Communication Theory, Reliability, and Quality of Service
  • ALLDATA 2019, The Fifth International Conference on Big Data, Small Data, Linked Data and Open Data
  • SOFTENG 2019, The Fifth International Conference on Advances and Trends in Software Engineering

ComputationWorld 2019
May 5 - 9, 2019 - Venice, Italy

  • SERVICE COMPUTATION 2019, The Eleventh International Conference on Advanced Service Computing
  • CLOUD COMPUTING 2019, The Tenth International Conference on Cloud Computing, GRIDs, and Virtualization
  • FUTURE COMPUTING 2019, The Eleventh International Conference on Future Computational Technologies and Applications
  • COGNITIVE 2019, The Eleventh International Conference on Advanced Cognitive Technologies and Applications
  • ADAPTIVE 2019, The Eleventh International Conference on Adaptive and Self-Adaptive Systems and Applications
  • CONTENT 2019, The Eleventh International Conference on Creative Content Technologies
  • PATTERNS 2019, The Eleventh International Conference on Pervasive Patterns and Applications
  • COMPUTATION TOOLS 2019, The Tenth International Conference on Computational Logics, Algebras, Programming, Tools, and Benchmarking
  • BUSTECH 2019, The Ninth International Conference on Business Intelligence and Technology

InfoSys 2019
June 2 - 6, 2019 - Athens, Greece

  • ICNS 2019, The Fiteenth International Conference on Networking and Services
  • ICAS 2019, The FIfteenth International Conference on Autonomic and Autonomous Systems
  • ENERGY 2019, The Ninth International Conference on Smart Grids, Green Communications and IT Energy-aware Technologies
  • WEB 2019, The Sseventh International Conference on Building and Exploring Web Based Environments
  • DBKDA 2019, The Eleventh International Conference on Advances in Databases, Knowledge, and Data Applications
  • SIGNAL 2019, The Fourth International Conference on Advances in Signal, Image and Video Processing
  • BIOTECHNO 2019, The Eleventh International Conference on Bioinformatics, Biocomputational Systems and Biotechnologies

(to be completed)

 


ThinkMind // International Journal On Advances in Networks and Services, volume 2, number 2 and 3, 2009 // View article netser_v2_n23_2009_8


Diffusion Approximation Models for Transient States and their Application to Priority Queues

Authors:
Tadeusz Czachórski
Tomasz Nycz
Ferhan Pekergin

Keywords: diffusion approximation, transient states, priority queues.

Abstract:
The article presents a diffusion approximation model applied to investigate the behavior of priority queues. We discusses the use of the diffusion approximation in transient analysis of queueing models in the case of a single station and of a queueing network presenting the solutions. We emphasize the numerical aspect of the solution and analyze the errors. In classical queuing theory, the analysis of transient states is complex and practically does not go far beyond M/M/1 queue and its modifications. However, the time dependent flows in computer networks and especially in Internet focus our interest on transient-state analysis, which is necessary to investigate the dynamics of TCP flows cooperating with active queue management or to see the changes of priority queues which assure the differentiated QoS. With the use of G/G/1/N and G/G/1/N/PRIOR models, we present the potentials of the diffusion approximation and in conclusions we compare it with alternative methods: Markovian queues solved numerically, fluid-flow approximation and simulation. Diffusion approximation allows us to include fairly general assumptions in queueing models. Besides the transient state analysis, it gives us a tool to consider input streams with general interarrival time distributions and servers with general service time distributions. Single server models can be easily incorporated into the network of queues. Here we apply the diffusion approximation formalism to study transient and steadystate behavior of G/G/1 and G/G/1/N priority preemptive models. The models can be easily converted to non-preemptive queueing discipline. The introduction of self-similar traffic is possible as well. The models can be useful in performance evaluation of mechanisms to differentiate the quality of service e.g. in IP routers, WiMAX, metro networks, etc.

Pages: 205 to 217

Copyright: Copyright (c) to authors, 2009. Used with permission.

Publication date: December 1, 2009

Published in: journal

ISSN: 1942-2644

SERVICES CONTACT
2010 - 2017 © ThinkMind. All rights reserved.
Read Terms of Service and Privacy Policy.