NDLI: Pushing uplink goodput of an asymmetric access network beyond its uplink bandwidth

Content Provider	IEEE Xplore Digital Library
Author	Cao Minh Trang Xin Huang Cheng-Hsin Hsu
Copyright Year	2012
Description	Author affiliation: Deutsche Telekom R&D Lab USA, 5050 El Camino Real 221, Los Altos, CA 94022 (Xin Huang) \|\| Department of Computer Science, National Tsing Hua University, Hsin Chu, Taiwan (Cheng-Hsin Hsu) \|\| NETS Research Group, Universitat Pompeu Fabra (UPF), Barcelona, Spain (Cao Minh Trang)
Abstract	Asymmetric access networks with downlink bandwidth 10–1000 times higher than uplink bandwidth are common, and upgrading these links may not be economically feasible in many usage scenarios. In this paper, we design, implement, and evaluate a parameterized Asymmetric Communication Layer (ACL) protocol that capitalizes the otherwise idling downlink bandwidth to boost the uplink goodput. The ACL protocol is different from existing techniques such as caching, protocol-independent redundancy elimination, WAN optimization, and online compression algorithms, because the ACL protocol is the first concrete network protocol to increase uplink goodput using downlink bandwidth. We implement the ACL protocol in ns-2 simulator, and conduct extensive simulations using synthetic traffic traces. The simulation results show the potential of the ACL protocol: compared to plain TCP/IP, 40–90% uplink goodput gain is possible. Users can also trade the goodput gain for lower delivery delay, as low as 1 RTT, or lower downlink payload amount, as low as 2.13 times of the actual data size. We also conduct a trace-driven simulation using a one-week real traffic trace of a Web server. We observe 24% uplink goodput gain, which shows the practicality of the ACL protocol.
Starting Page	3223
Ending Page	3228
File Size	734545
Page Count	6
File Format	PDF
ISBN	9781457720529
ISSN	15503607
e-ISBN	9781457720536
e-ISBN	9781457720512
DOI	10.1109/ICC.2012.6364265
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-06-10
Publisher Place	Canada
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Protocols Downlink Receivers Bandwidth Payloads Delay redundancy elimination Network protocol asymmetric communications goodput optimization
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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