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Paper Abstract and Keywords
Presentation 2026-03-04 11:35
Packet Scheduling Method Aimed at Economic Fairness Among ISPs
Airi Sano, Noriaki Kamiyama (Ritsumeikan Univ) NS2025-236
Abstract (in Japanese) (See Japanese page) 
(in English) The Internet is a best-effort network based on the TCP/IP protocol suite, fundamentally offering no guaranteed communication quality. Consequently, increasing traffic leads to latency and throughput degradation, creating unfair communication quality between specific users or services.
Currently, in edge areas such as access ISPs (Internet Service Providers), packet priority control and fair bandwidth allocation per flow are achieved by combining SPQ (Strict Priority Queuing) and WFQ (Weighted Fair Queuing). However, in backbone networks where massive traffic concentrates, implementing WFQ for detailed flow-level control is difficult from the perspectives of computational cost and scalability. Consequently, control is generally limited to coarse-grained management at the QoS class level.
Meanwhile, among ISPs constituting the backbone network, downstream ISPs pay transit fees to upstream ISPs based on the bandwidth they consume. However, under the current class-based control, this difference in payment amounts is not reflected in bandwidth allocation, creating an unfair cost-benefit disparity between ISPs paying high connection fees and those paying less.

Therefore, this paper proposes a new bandwidth control method using Deficit Weighted Round Robin (DWRR) in backbone networks to achieve economic fairness among ISPs.
The proposed method determines the DWRR weight based on the transit fees paid by each ISP. This enables assigning a larger weight (quantum) to ISPs paying higher connection fees, allowing them to receive priority bandwidth allocation.
DWRR utilizes a deficit counter, enabling it to maintain fairness according to weight while keeping computational load low even for variable-length packets. This makes it suitable for implementation on high-speed backbone routers.
To verify the effectiveness of the proposed method, we simulate a network environment where multiple ISPs with different transit fees are connected and evaluate the throughput distribution effect achieved by the proposed scheme.
Keyword (in Japanese) (See Japanese page) 
(in English) Bandwidth Control / Economic Fairness / DWRR / Transit Fee / Backbone Network / / /  
Reference Info. IEICE Tech. Rep., vol. 125, no. 385, NS2025-236, pp. 90-94, March 2026.
Paper # NS2025-236 
Date of Issue 2026-02-25 (NS) 
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 NS2025-236

Conference Information
Committee IN NS  
Conference Date 2026-03-04 - 2026-03-06 
Place (in Japanese) (See Japanese page) 
Place (in English) Okinawa-Ken Shichoson Jichi Kaikan 
Topics (in Japanese) (See Japanese page) 
Topics (in English) General 
Paper Information
Registration To NS 
Conference Code 2026-03-IN-NS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Packet Scheduling Method Aimed at Economic Fairness Among ISPs 
Sub Title (in English)  
Keyword(1) Bandwidth Control  
Keyword(2) Economic Fairness  
Keyword(3) DWRR  
Keyword(4) Transit Fee  
Keyword(5) Backbone Network  
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1st Author's Name Airi Sano  
1st Author's Affiliation Ritsumeikan University (Ritsumeikan Univ)
2nd Author's Name Noriaki Kamiyama  
2nd Author's Affiliation Ritsumeikan University (Ritsumeikan Univ)
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Speaker Author-1 
Date Time 2026-03-04 11:35:00 
Presentation Time 25 minutes 
Registration for NS 
Paper # NS2025-236 
Volume (vol) vol.125 
Number (no) no.385 
Page pp.90-94 
#Pages 5 
Date of Issue 2026-02-25 (NS) 

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