NDLI: Voice over wireless LAN via wireless distribution system

Content Provider	IEEE Xplore Digital Library
Author	Ping Chung Ng Soung Chang Liew Wei Wang
Copyright Year	2004
Description	Author affiliation: Dept. of Inf. Eng., Chinese Univ. of Hong Kong, Shatin, China (Ping Chung Ng; Soung Chang Liew; Wei Wang)
Abstract	A multiplex-multicast (M.-M) scheme previously proposed by us (W. Wang et al, IEEE ISCC'04, 2004) can improve the VoIP capacity in a WLAN operating as an infrastructure basic service set (BSS) by close to 100%. This paper extends the M-M scheme for WLAN connected via a wireless distribution system (WDS). Specifically, we show that given a fixed delay requirement, the M-M scheme can increase the number of supportable VoIP sessions by ten times as compared to ordinary VoIP transmission over the WDS. In addition, with 22 VoIP sessions (max limit in an 802.11b infrastructure BSS connected via a wired distribution system), the M-M scheme can achieve acceptable packet delays, (average of 27.1 ms and standard deviation of 7.5 ms) in a 10-hop WDS. Last but not least, we show that the use of packet scheduling in conjunction with the M-M scheme can further double the VoIP capacity while extending voice-service coverage at the same time.
Starting Page	2564
Ending Page	2567
File Size	848479
Page Count	4
File Format	PDF
ISBN	0780385217
ISSN	10903038
DOI	10.1109/VETECF.2004.1400519
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2004-09-26
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Ping Chung Ng Soung Chang Liew Wei Wang Power cables Multiplexing Spread spectrum communication Quality of service Internet telephony Telecommunication traffic Scheduling algorithm
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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