NDLI: Reliable Wireless Multicasting with Minimum Overheads in OFDM-Based WLANs

Content Provider	IEEE Xplore Digital Library
Author	Byung-Seo Kim Sung Won Kim Ishmanov, F.
Copyright Year	2008
Description	Author affiliation: Comput. & Inf. Commun. Eng., Hongik Univ., Jochiwon (Byung-Seo Kim)
Abstract	Even though multicast data transmissions in wireless communication standards doesn't require ARQ, to achieve reliable multicast over wireless channel, using ARQ is inevitable. However, unlike unicast, a sender needs to receive multiple acknowledgements (ACKs) from group members, and transmitting ACK from each group member degrades the network performance due to the overhead including multiple ACK packet transmissions and channel access process for ACKs and so on. An acknowledgement method with a minimum overhead is proposed in this paper, called OFDMA-based Multicast ACK (OMACK). The scheme uses one OFDM symbol for acknowledgements from all member stations (STAs), and each member STA indicates their packet reception status by allocating a symbol on previously allocated its own sub-carrier within the OFDM symbol. The proposed scheme is extensively evaluated by using simulation, and the results show that the scheme significantly reduces the aforementioned overhead comparing to legacy solutions and as a consequence improves the performance of the wireless networks.
Starting Page	2519
Ending Page	2523
File Size	458062
Page Count	5
File Format	PDF
ISBN	9781424420759
DOI	10.1109/ICC.2008.477
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-05-19
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Automatic repeat request Unicast OFDM Wireless networks Multicast protocols Feedback Radio access networks Telecommunication traffic Wireless communication Computer network reliability
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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