NDLI: QoS-aware adaptive MPDU aggregation of VoIP traffic on IEEE 802.11n WLANs

Content Provider	IEEE Xplore Digital Library
Author	Seytnazarov, S. Young-Tak Kim
Copyright Year	2014
Description	Author affiliation: Dept. of Inf. & Commun. Eng., Yeungnam Univ., Gyeongsan, South Korea (Seytnazarov, S.; Young-Tak Kim)
Abstract	MPDU aggregation is not applied to real-time voice traffic (e.g., VoIP) in currently available IEEE 802.11n WLAN implementations considering the strict upper bounds of end-to-end delay and jitter. As a result, when real-time voice and non-real-time heavy load traffics are intermixed the resource utilization and overall throughput become poor due to the overhead produced by individual voice MPDU transmissions. In this paper, we propose QoS-aware Adaptive MPDU aggregation scheduler which applies aggregation to voice traffic and adaptively adjusts the aggregation size based on time-varying end-to-end delay and WLAN contention, and QoS requirements (e.g. less than 150 ms end-to-end delay). Experimental results of the proposed scheme show that the overall throughput increased by 57% when 10 stations generate 64 Kbps PCM voice traffic on 270 Mbps PHY rate for 2 ms transit delay representing campus network communication. For 120 ms transit delay configuration that represents intercity communication, the throughput enhancement was 45 % compared to the existing scheme1.
Starting Page	356
Ending Page	359
File Size	719795
Page Count	4
File Format	PDF
ISBN	9783901882678
DOI	10.1109/CNSM.2014.7014193
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-11-17
Publisher Place	Brazil
Access Restriction	Subscribed
Rights Holder	IFIP
Subject Keyword	Wireless LAN Conferences QoS Quality of service Frame aggregation Throughput Hardware Delays IEEE 802.11n Standard IEEE 802.11n Aggregation scheduler
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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