New measures for multicast gain and their application to IPTV delivery in WiMAX-based access networks

Author

Abdollahpouri, Alireza ; Wolfinger, Bernd E.

Author_Institution

Dept. of Comput. Sci. - TKRN, Univ. of Hamburg, Hamburg, Germany

fYear

2011

fDate

26-28 Oct. 2011

Firstpage

1

Lastpage

9

Abstract

Support for multicasting, wide coverage range and high bandwidth, makes WiMAX a leading solution to deliver bandwidth-hungry services like IPTV to mobile subscribers. The smallest logical bandwidth allocation unit in OFDMA-based WiMAX is a slot. In this article, we use the term slot to introduce a new performance criterion, called multicast gain, which can be used for computing multicast efficiency. We analyze multicast transmission for delivery of live TV channels in WiMAX-based access networks, and determine the gain to be expected for access links in order to quantify the benefits of multicasting. We show that for unpopular TV channels, using unicast flows can be a better choice.

Keywords

IPTV; OFDM modulation; WiMax; bandwidth allocation; frequency division multiple access; multicast communication; radio access networks; IPTV delivery; OFDMA; TV channels; WiMAX-based access networks; access links; bandwidth-hungry services; logical bandwidth allocation unit; mobile subscribers; multicast efficiency; multicast gain; multicast transmission; unicast flows; Bandwidth; Gain measurement; IPTV; Mobile communication; Unicast; WiMAX; IPTV; Multicast gain; WiMAX; performance metrics;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless and Mobile Networking Conference (WMNC), 2011 4th Joint IFIP

Conference_Location

Toulouse

Print_ISBN

978-1-4577-1192-3

Electronic_ISBN

978-1-4577-1191-6

Type

conf

DOI

10.1109/WMNC.2011.6097221

Filename

6097221