


Parkvall S, Englund E, Lundevall M, Torsner J.

Third-generation Partnership Project (3GPP), 3GPP Technical Specification TS 23.246, "Multimedia Broadcast/Multicast Service (MBMS) Architecture and functional description", V6.11.1, December 2006.Third-generation Partnership Project (3GPP), 3GPP Technical Specification TS 26.346, "Multimedia Broadcast/Multicast Service (MBMS) Protocols and codes", V6.7.0, December 2006.Weiser M., "Some computer science issues in ubiquitous computing", Communication of ACM, 36(7): 75-84, 1993.Chlamtac I., Lin Y.-B., "Mobile computing: When mobility meets computation", IEEE Trans."A survey of peer-to-peer content distribution technologies". In Proceedings of the 14th IST Mobile Summit, 2005. "Group Management for the Multimedia Broadcast/Multicast Service". R., "Data on air: Organization and access", IEEE Trans. Imielinski T., Viswanathan S., Badrinath B.Ko Y.-B., and Kim J.-H., "Disconnected Operation Service in Mobile Grid Computing," In Proceedings of International Conference on Service Oriented Computing (ICSOC'2003), Trento, Italy, December 2003. We demonstrate the effectiveness of related mechanisms using a number of examples and some performance experiments. The algorithms proposed could deliver information in a very high-performance way to larger user groups so as to achieve shorter response time and less network latency, both for the source-side and for the destination-side. Moreover, we systemically study the parallel channels content organization for non-concurrent and concurrent content retrieval, and then contribute better content organization and retrieving algorithms which fully utilized the concurrent parallel content retrieval capability. This paper develops the PTM parallel channels content organization mechanism to support timely and reliable access to the common interested information on the Mobile Grid, which has great practical value in the mobile IPTV application scenario. Point-to-multipoint (PTM) communication is an effective solution to this limitation. Accordingly, the bottleneck exists at the last mile from the Grid backbone to those mobile terminals where wireless environment places limitations on the rate and amount of communication. Abundant information in the Grid is being delivered to enormous destinations among which the mobile users maybe the mainstream in near future.
