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Paper Abstract and Keywords
Presentation 2026-06-11 15:45
A Note on QoS-Aware Quantitative Evaluation of Load Balancing Strategies in Web Server Clusters
Junjun Zheng, Hiroyuki Okamura, Tadashi Dohi (Hiroshima Univ.) R2026-11
Abstract (in Japanese) (See Japanese page) 
(in English) This paper presents a QoS-aware quantitative evaluation framework for load balancing strategies in web server clusters. To capture dynamic request routing, server congestion, and fallback behaviors under overload conditions, a hierarchical modeling framework based on Petri nets, continuous-time Markov chains (CTMCs), and multi-state systems (MSSs) is developed. Representative load balancing strategies, including random, round robin, least connection, and their fallback-enhanced variants, are incorporated into the unified model. Two QoS-oriented metrics, namely service health probability and request loss probability, are introduced for quantitative evaluation.
Keyword (in Japanese) (See Japanese page) 
(in English) Web server cluster / load balancing / Petri net / continuous-time Markov chain / multi-state system / / /  
Reference Info. IEICE Tech. Rep., vol. 126, no. 66, R2026-11, pp. 18-23, June 2026.
Paper # R2026-11 
Date of Issue 2026-06-04 (R) 
ISSN Online edition: ISSN 2432-6380
Copyright
and
reproduction		 All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF R2026-11

Conference Information
Committee R  
Conference Date 2026-06-11 - 2026-06-11 
Place (in Japanese) (See Japanese page) 
Place (in English) Kikai-Shinko-Kaikan Bldg. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Reliability General 
Paper Information
Registration To R 
Conference Code 2026-06-R 
Language English (Japanese title is available) 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Note on QoS-Aware Quantitative Evaluation of Load Balancing Strategies in Web Server Clusters 
Sub Title (in English)  
Keyword(1) Web server cluster  
Keyword(2) load balancing  
Keyword(3) Petri net  
Keyword(4) continuous-time Markov chain  
Keyword(5) multi-state system  
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1st Author's Name Junjun Zheng  
1st Author's Affiliation Hiroshima University (Hiroshima Univ.)
2nd Author's Name Hiroyuki Okamura  
2nd Author's Affiliation Hiroshima University (Hiroshima Univ.)
3rd Author's Name Tadashi Dohi  
3rd Author's Affiliation Hiroshima University (Hiroshima Univ.)
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Speaker Author-1 
Date Time 2026-06-11 15:45:00 
Presentation Time 25 minutes 
Registration for R 
Paper # R2026-11 
Volume (vol) vol.126 
Number (no) no.66 
Page pp.18-23 
#Pages 6 
Date of Issue 2026-06-04 (R) 

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