Measures to quantify the gain of multicast with application to IPTV transmissions via WiMAX networks

In applications like IPTV, multicasting provides beneficial services. However, due to overhead and problems of multicast transmission, multicasting is not always profitable. In order to make well-justified decisions whether it is worthwhile to use multicasting or not, its efficiency must be quantified. Therefore, the metric of ‘multicast gain’ is introduced as a measure for the bandwidth reduction which can be expected when using multicast (instead of multiple unicast). Different definitions for multicast gain are given to cover different types of links. As an application of our metric, multicast transmission of live TV channels in WiMAX-based access networks is analyzed. WiMAX as one of the 4G candidates can transmit IPTV services to mobile subscribers because of salient features such as multicast support, wide coverage range and high bandwidth. In OFDMA-based WiMAX the smallest logical bandwidth allocation unit is a slot. In this article, we use the term slot to measure the efficiency of multicasting in WiMAX networks. We show that for unpopular TV channels, using unicast flows can be preferable.

[1]  Marvin A. Sirbu,et al.  Pricing Multicast Communication: A Cost-Based Approach , 2001, Telecommun. Syst..

[2]  Anan Phonphoem,et al.  Performance Analysis and Comparison Between Multicast and Unicast over Infrastructure Wireless LAN , 2006, AINTEC.

[3]  Bernd E. Wolfinger,et al.  New measures for multicast gain and their application to IPTV delivery in WiMAX-based access networks , 2011, 2011 4th Joint IFIP Wireless and Mobile Networking Conference (WMNC 2011).

[4]  Amitabh Kumar.  Mobile Broadcasting with WiMAX: Principles, Technology, and Applications , 2008 .

[5]  Bernd E. Wolfinger,et al.  Decision Support for the Usage of Multicast versus Unicast in Broadband TV Networks , 2010, 2010 Sixth Advanced International Conference on Telecommunications.

[6]  Peter Lambert,et al.  Delivering scalable video with QoS to the home , 2012, Telecommun. Syst..

[7]  Raj Jain,et al.  Capacity Evaluation for IEEE 802.16e Mobile WiMAX , 2010, J. Comput. Networks Commun..

[8]  Didier Sornette,et al.  Theory of Zipf's Law and Beyond , 2009 .

[9]  Kamran Etemad,et al.  Multicast and broadcast multimedia services in mobile WiMax networks , 2009, IEEE Communications Magazine.

[10]  Woo-Yong Lee,et al.  Design and analysis of hybrid approach to mobile TV service over WiMAX network , 2009, 2009 2nd IFIP Wireless Days (WD).

[11]  Christos Bouras,et al.  An improved MBMS power counting mechanism towards long term evolution , 2010, Telecommun. Syst..

[12]  Loutfi Nuaymi,et al.  Wimax Technology for Broadband Wireless Access , 2007 .

[13]  Ronny Yongho Kim,et al.  WiMAX femtocell: requirements, challenges, and solutions , 2009, IEEE Communications Magazine.

[14]  Samuli Aalto,et al.  Multicasting vs. unicasting in mobile communication systems , 2002, WOWMOM '02.

[15]  Erik Dahlman,et al.  3G Evolution, Second Edition: HSPA and LTE for Mobile Broadband , 2008 .

[16]  Junyu Lai,et al.  Unicast versus Multicast for Live TV Delivery in Networks with Tree Topology , 2010, WWIC.

[17]  Piet Van Mieghem,et al.  On the efficiency of multicast , 2001, TNET.

[18]  Jim Kurose,et al.  Computer Networking: A Top-Down Approach , 1999 .

[19]  Yuntao Shi,et al.  Optimized Multicast Service Management in a Mobile WiMAX TV System , 2009, 2009 6th IEEE Consumer Communications and Networking Conference.

[20]  Pablo Rodriguez,et al.  Watching television over an IP network , 2008, IMC '08.

[21]  Seungjoon Lee,et al.  Modeling channel popularity dynamics in a large IPTV system , 2009, SIGMETRICS '09.

[22]  Tijani Chahed,et al.  QoS-oriented resource allocation for streaming flows in IEEE802.16e Mobile WiMAX , 2012, Telecommun. Syst..