Scheduling techniques for mobile broadcast and multicast services
Knappmeyer, M., Chiang, R., Baker, N. and Tonjes, R. (2008) Scheduling techniques for mobile broadcast and multicast services. In: Frigyes, I., Bakki, P. and Bito, J., eds. (2008) Advances in Mobile and Wireless Communications. (16) Berlin: Springer, pp. 201-220. ISBN 9783540790402 Available from: http://eprints.uwe.ac.uk/12473
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Publisher's URL: http://www.springer.com/engineering/signals/book/9...
With the increasing capabilities of mobile terminals, the reception of mul-timedia content is becoming more and more attractive for customers. Im-proving high bandwidth provision enables 3G cellular systems to deliver such data to the end user. The 3G mobile experience is following a trend towards personalized services and applications which are used not only for voice communication but also for entertainment. Customers favour short video/audio clips rather than watching complete movies on their small screen. The deployment of new broadcasting networks like Digital Video Broadcasting - Handheld (DVB-H) results in large costs both in terms of capital as well as operating expenditure. Hence it is an enormous commer-cial risk for providers to install such systems. Multimedia Broadcast Multicast Service (MBMS) is considered a prom-ising technology to distribute multicast and broadcast services efficiently and at reasonable costs within existing 3GPP cellular networks. Enriched interactive multimedia services can be offered providing, for example, the latest news or publishing the current top ten music video clips. The trend towards user generated content distribution which is observed in the Inter-net will no doubt increase the number of available services and content. Set against this background of predicted increase both in terms of num-ber of services/content and users, the competition for limited resources will only intensify. MBMS is regarded as a bearer technology and not a com-plete service provisioning system therefore efficient scheduling for optimal utilization of radio and network resources is essential. Scheduling in MBMS comprises several levels of abstraction which require different strategies. This chapter presents several scheduling techniques and ap-proaches for MBMS content distribution. It explains the concepts of (1) a Dynamic MBMS Resource Scheduler located in the Radio Access Network (RAN), (2) a Carousel Service Scheduling approach and (3) means for an optimal scheduling of Multicast Streaming Services. The latter two sched-ule services and content while the first deals with IP packets.
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