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Future Internet 2010, 2(4), 431-445; doi:10.3390/fi2040431
Article

Exploiting the In-Network Capabilities of Multicast to Discover Proximate IPTV Channels

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Received: 11 August 2010; in revised form: 24 September 2010 / Accepted: 25 September 2010 / Published: 29 September 2010
(This article belongs to the Special Issue Network vs. Application Based Solutions for NGN)
Download PDF [224 KB, uploaded 29 September 2010]
Abstract: IPTV has become the next generation of television due, in part, to its ability to support features that have been lacking in conventional broadcasting—for example, end-user interactivity, personalisation and localisation. Providers are also searching for the most efficient delivery methods to provide the greatest amount of contents at the lowest cost. At present IPTV uses IP multicast to deliver live TV channels in an over-provisioned walled-garden network due to issues of deploying multicast and QoS challenges in the public Internet. However, IPTV is likely to shift into some parts of the public Internet in the future as a managed service. Multicast routing is performed on a per-session destination-address basis so each router maintains a table of all of the multicast addresses to which the content is being forwarded. We exploit this information to discover and join the in-progress channels of geographically proximate users and to create a new incentivised premium service in future IPTV networks called ProxyTV. This approach is expected to minimise network bandwidth requirements as it enables ISPs to optimise bandwidth on their edge networks. This becomes increasingly significant as TV content consumes more and more bandwidth, especially with the onset of HD and 3D capabilities. In this paper, we have presented in detail the concept with the results of a survey and an analysis of network traffic to justify the proposed approach.
Keywords: IP multicast; IPTV; channel proximity; user-provided networking; social TV; traffic localisation IP multicast; IPTV; channel proximity; user-provided networking; social TV; traffic localisation
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Kulatunga, C.; Kielthy, J.; Botvich, D.; Donnelly, W. Exploiting the In-Network Capabilities of Multicast to Discover Proximate IPTV Channels. Future Internet 2010, 2, 431-445.

AMA Style

Kulatunga C, Kielthy J, Botvich D, Donnelly W. Exploiting the In-Network Capabilities of Multicast to Discover Proximate IPTV Channels. Future Internet. 2010; 2(4):431-445.

Chicago/Turabian Style

Kulatunga, Chamil; Kielthy, Jesse; Botvich, Dmitri; Donnelly, William. 2010. "Exploiting the In-Network Capabilities of Multicast to Discover Proximate IPTV Channels." Future Internet 2, no. 4: 431-445.


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