NDLI: Power-Saving Mechanism for IEEE 802.11 Clients in a Multicast Multimedia Streaming Network

Content Provider	IEEE Xplore Digital Library
Author	Morisawa, Y. Kawahara, Y. Asami, T.
Copyright Year	2014
Description	Author affiliation: Grad. Sch. of Inf. Sci. & Technol., Univ. of Tokyo, Tokyo, Japan (Morisawa, Y.; Kawahara, Y.; Asami, T.)
Abstract	Wireless LAN multicast is a suitable mechanism for multimedia streaming because of its bandwidth efficiency. However, wireless multicast has several problems in terms of power efficiency. In this study, we analyze the power efficiency of multicast in IEEE 802.11 networks and show that multicast increases the power consumption of clients significantly irrespective of whether the clients join multicast groups or not. The main reason is that IP multicast packets are transferred as broadcast frames in IEEE 802.11 networks. To improve power efficiency, we propose a new multicast streaming mechanism. Our work is strongly motivated by Flexible Multicast Service (FMS), which is a new IEEE 802.11 standard. FMS permits access points (APs) to transmit multicast frames in more than one delivery traffic indication message (DTIM) interval, which allows clients to wake up at alternate DTIM intervals, rather than every DTIM. However, our analysis proved that FMS is not an optimal mechanism in terms of power efficiency. We propose a new mechanism that provides more power-efficient multicast multimedia streaming, without delay or throughput penalty. Our method focuses on how to reduce the number of unnecessary frames received by clients. The key idea is to stagger the transmission timing to let clients avoid receiving unnecessary frames. We evaluate the mechanism by comprehensive analysis and simulations. The results show that the mechanism achieves significant power savings in wireless LAN multicast networks.
Sponsorship	IEEE Comput. Soc.
Starting Page	289
Ending Page	298
File Size	344638
Page Count	10
File Format	PDF
ISBN	9781479935758
ISSN	07303157
DOI	10.1109/COMPSAC.2014.39
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-07-21
Publisher Place	Sweden
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Power demand IEEE 802.11 Standards Radiation detectors Streaming media Educational institutions Throughput Multicast Power Saving Wireless LAN
Content Type	Text
Resource Type	Article
Subject	Computer Science Applications Software

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