Real-time stable personal broadcasting community for mobile terminals

Many people from all over the world have been supplied with mobile terminals, and this has increased the computing power of each individual. Based on this increased utilization of mobile terminals, there are new services that are emerging as well. Also, as User Created Contents (UCC) is becoming widely available, the new era of easily sharing contents with others has started. As the result of these two factors, users can now record materials easily with mobile terminals, create UCC, and eventually share with others as means of communication. Also, users prefer the real-time UCC broadcasting because of their desires to communicate with other users through contents, which they have created by themselves, and to receive contents services that they want. Thus, this study will present the mobile terminal and additional servers for its maintenance of configuring the realtime personal broadcasting service using the mobile terminal. This study will also present functions that help transfer of data by managing the network and participating in the network. For evaluation, we choose two multicast schemes: ZIGZAG and PRIME. ZIGZAG shows the great performance on low B/W usage and it is used for single-tree structure; PRIME has advantage on fast transmission and the usage of comparing mesh methods. With the mobile environment probabilities at 10% and 20%, our proposed idea showed 11% and 24%, respectively, higher node surviving rates than ZIGZAG, and 4% and 12%, respectively, higher node surviving rates than PRIME. And with the mobile environment probabilities at 10% and 20%, our proposed idea needed half B/W than PRIME and almost same B/W with ZIGZAG.