naa a22 4500 510795153 CHVBK 20180411083333.0 cr unu---uuuuu 180411e20130401xx s 000 0 eng 10.1007/s11277-012-0671-x doi (NATIONALLICENCE)springer-10.1007/s11277-012-0671-x Dynamic Bandwidth and Carrier Allocation for Video Broadcast/Multicast Over Multi-Cell Environments [Elektronische Daten] [Taegeun Oh, Hyungkeuk Lee, Sanghoon Lee] Recently, broadcast/multicast over cellular networks has been actively discussed over commercial wireless mobile terminals. Compared to conventional terrestrial or satellite broadcasting systems, the quality-of-service (QoS) for edge users is an important issue due to inter-cell interference over multi-cell environments. In this paper, we introduce a dynamic bandwidth and carrier allocation (DBCA) technique by fully utilizing different visual importance of each layer in multi-layer video for broadcast/multicast services when the number of users is limited over macro/micro/femto cell environments. To ensure an acceptable video quality for edge users, the bandwidth and the loading ratio are dynamically controlled to enhance the utility through the radio resource control in accordance with the visual importance. The simulation results show that DBCA exhibits much better QoS by sending visually more important data with high priority in the cell border region. Springer Science+Business Media, LLC., 2012 Multicast service nationallicence Layered video coding nationallicence Visual entropy nationallicence Loading ratio nationallicence Orthogonal frequency division multiple access (OFDMA) nationallicence Collision avoidance nationallicence Oh Taegeun The Center for Information Technology of Yonsei, Yonsei University, 120-749, Seoul, Korea aut Lee Hyungkeuk The Center for Information Technology of Yonsei, Yonsei University, 120-749, Seoul, Korea aut Lee Sanghoon The Center for Information Technology of Yonsei, Yonsei University, 120-749, Seoul, Korea aut Wireless Personal Communications Springer US; http://www.springer-ny.com 69/4(2013-04-01), 1925-1945 0929-6212 69:4<1925 2013 69 11277 https://doi.org/10.1007/s11277-012-0671-x text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11277-012-0671-x text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Oh Taegeun The Center for Information Technology of Yonsei, Yonsei University, 120-749, Seoul, Korea aut NATIONALLICENCE 700 1- Lee Hyungkeuk The Center for Information Technology of Yonsei, Yonsei University, 120-749, Seoul, Korea aut NATIONALLICENCE 700 1- Lee Sanghoon The Center for Information Technology of Yonsei, Yonsei University, 120-749, Seoul, Korea aut NATIONALLICENCE 773 0- Wireless Personal Communications Springer US; http://www.springer-ny.com 69/4(2013-04-01), 1925-1945 0929-6212 69:4<1925 2013 69 11277 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer