On efficient 3D data dissemination
Wireless Networks
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Data broadcast is an advanced technique to realize large scalability and bandwidth utilization in a mobile computing environment. Three dimensional (3D) contents are emerging data in the data broadcast. However, traditional data broadcast did not consider 3D data to design a data schedule in a broadcast channel. Therefore, the above drawback leads to large access delay in the 3D data broadcast. In this paper, we remedy the problem by devising an indexing technique to index the 3D data of variant geometry shapes. We propose an indexing technique using a 3D data index tree to minimize average waiting time and average tuning time for broadcasting the 3D data. Experimental results show that our approach is able to generate broadcast programs including the 3D data indices with high quality and is very efficient in the 3D data broadcast.