Dynamic images carousel transmissions over multiple multicast groups
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Date
2004
Authors
Supakorn, Ratsameemonthol
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Abstract
The skyrocketing growth of internet and the advancement of high-end desktop computers have facilitated multimedia data distribution in large-scale. Congruously, the demand of this kind services and the bandwidth volume grow endlessly. The requirements of multimedia applications for the capability in transmitting real-time data with scalability and heterogeneity have motivated the research into data delivering structure, data delivering scheduling and large-scale transmission services. This work proposes a dynamic images carousel transmission over multiple multicast groups. The transmission service offers three demands that were described previously. The First, it provides a scalable dynamic images structure. Instead of sending a big image all at once, the image is tiled into small parts before being distributed to a large number of receivers. The suitable tile size will be analyzed in order to balance between the temporal removing processing time and the traffic load caused by the temporal image. The image encoders also will be tested. The second demand is that it prepares a cyclic data transmission for resilience. This data carousel technique gains the benefit of eliminating the management of the explosion request for lost packets from the huge number of clients. The process of updating data, tiled images, into the carousel cycle is the main key of this technique. With this proposed updating scheme, it takes a short latency time to retransmit the data compared to other techniques. Moreover, the by-product of this method serves the late arrival of receivers. The third demand, the transmission service provides scalability and heterogeneity. The multicast network supports the scalable protocol. The heterogeneity of receivers has been fulfilled by transmitting data over multiple multicast groups. The key point of this service is the method to schedule tiled image data over multicast groups and to handle the sequence of sending data. Using object-oriented technique to implement such method helps to ease the transmission of the peculiar tiled images. Moreover, the traffic rate control has been achieved by controlling the duplication of data caused by a scheduling algorithm and periodical multicasting data that conveys a bulk of pre-fragmented data. Finally, our work contributes to the large-scale distributing dynamic images to the large number of dissimilar kinds of receivers with resiliency that provide by cyclic transmission.
Description
Ph.D
Keywords
Computer Science , Carousel transmission