Video multicast with heterogeneous user interests in multi-rate wireless networks

Ching-Ju Lin*, Shang Po Chou, Cheng Fu Chou

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

3 Scopus citations

Abstract

As mobile devices, such as smart phones and tablet PCs, become more and more ubiquitous, it is increasingly popular for users to watch online video streaming on their mobile devices. Because of the nature of wireless broadcast, a wireless router (e.g., an access point or cellular tower) can retrieve video streams from the video server and then efficiently multicast them via wireless medium to multiple clients who are interested in those videos. However, clients could locate in different positions and therefore experience various wireless channel conditions. In addition, clients might be interested in different video content so that different video clips could have various popularity. The heterogeneity in wireless conditions and user interests makes bandwidth allocation in a wireless router for video multicast a challenging problem. In this paper, we propose a marginal-utility-based video multicast scheme that takes variant channel qualities and heterogeneous user interests into account. Our evaluation shows that, compared to interest-oblivious multicast, the proposed interest-aware approach can improve the average visual quality by up to 9 dB.

Original languageEnglish
Title of host publication2012 IEEE Wireless Communications and Networking Conference, WCNC 2012
Pages2092-2097
Number of pages6
DOIs
StatePublished - 1 Aug 2012
Event2012 IEEE Wireless Communications and Networking Conference, WCNC 2012 - Paris, France
Duration: 1 Apr 20124 Apr 2012

Publication series

NameIEEE Wireless Communications and Networking Conference, WCNC
ISSN (Print)1525-3511

Conference

Conference2012 IEEE Wireless Communications and Networking Conference, WCNC 2012
CountryFrance
CityParis
Period1/04/124/04/12

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