DEIM Forum 2017 E1-1 700-8530 3-1-1 E-mail: inoue-y@mis.cs.okayama-u.ac.jp, gotoh@cs.okayama-u.ac.jp 1. Netflix (Video on Demand) IP 4K [1] Video on Demand ( VoD) () 2. 2. 1 VoD VoD 2. 2 AbemaTV VoD VoD
H-AHB 3 1 1.5 Mbps 2 3.0 Mbps 3 4.5 Mbps 1 1 4.5 Mbps 1.5 Mbps 60 1.5 Mbps C 1, C 2, C 3 1 H-AHB ( 1) 2. 3 (Near Video on Demand) (Near Video on Demand) VoD 3. 3. 1 [2], [3], [4] Hierarchical Asynchronous Harmonic Broadcasting method ( H-AHB ) [5] H-AHB ( ) S 1, S 2, S 3 C 1 S 1 C 2 S 2, C 3 S 3 3 S 1 10 2 10 1 S 1 (10 ) (20 ) 30 1 2 3 (30 + 10 + 10)/3 16.7 1 2 3 60 1.5/(1.5 + 3.0 + 4.5)/3 36.7 3. 2 H-AHB H-AHB 3 () 2 3 4 3 3 3. 1 2 20 3 16.7 4 20
2 H-AHB 1 3 H-AHB 2 4 H-AHB 3 2 3 3. 1 3 H-AHB Optimized Heterogeneous Periodic Broadcast [6] 4. 4. 1 DB-GA Division-based Broadcasting method with Genetic Algorithm ( DB-GA ) DB-GA [7] 3. 1 4. 2 4. 2. 1 1 Fast data broadcasting and receiving scheme ( FB ) [8] 4.5 Mbps 4.5 Mbps 3. 1 5 0.9 Mbps 6.76 9 0.5 Mbps 5.01 1 4. 2. 2 [9] 4.5 Mbps 5 0.9 Mbps 9 0.5 Mbps 4. 3 3.1 1 n b i (i = 1,, n) 2 e i 3 (4.1) w e i m n w = max(x i y i, 0) (1) j=1 i=1 x i y i
1 r V R j j D c j,i j i S i i e i S i d i S i D e i n k=1 e k { 0 (i = 0) 5 x i = d i c j,i + x max(i Rj,0) (1 i n) 6. y i = { 0 (i = 1) max(x i 1, y i 1 ) + d i 1 r V (2 i n) 4 e i d i 5 C i S i 5. 5. 1 Multiple-Video broadcasting scheme with Repairing ( MV-R ) [10] Multiple-Video broadcasting method considering Data size [11] 1 5. 2 Synchronized Double Buffering Broadcasting [12] Data Packet Broadcasting ( DPB ) [13] 6. 1 T elecas T elecommunication and BroadCasting System (T elecas) [14] T elecas FB MV-R T elecas 2 T elecas ( ) T elecas 6. 2 T elecas T elecas 5 T elecas 5 1 T elecas 1.5 T elecas 1
6 8 7 T elecas 6 7 7 6. 3 1 T elecas 1 1 T elecas IP T elecas T elecas T elecas 7. 7. 1 T elecas IGMP-Snooping [15] T elecas 1 3 Gigabit Ethernet T elecas T elecas 5 1.5 Mbps 7. 2 T elecas 2 2 4 1 4 T elecas
8 DB-GA 6. 2 6. 3 4 1 4 3 1 1.0 Mbps 2 5.0 Mbps 3 10 Mbps T elecas 1.0 Mbps 10 Mbps DB-GA 1 201907 Bytes 1 1.0 Mbps 0.2 1.0 Mbps 32.5 32.7 1 0.39 2 0.24 6. 2 DB-GA 1 36.6 3 2.76 6. 3 4 3 6. 2 6. 3 7. 3 1 7. 4 7. 5 7. 4 1 10 T elecas DB-GA FB 11.1 MBytes 17.0 MBytes 22.5 MBytes 28.1 MBytes 33.8 MBytes 5 9 ( ) 5.0 Mbps 5.0 Mbps 4. 2. 1 T elecas DB-GA 1 0.038 Mbps 1 0.033 Mbps 150 FB 3 1.5 Mbps DB-GA 150 1 861 Bytes 2.35 FB 7 1 1671053 Bytes 8.9 DB-GA FB FB 5.0 Mbps 4.5 Mbps DB-GA 5.0 Mbps T elecas DB-GA FB T elecas DB-GA 7. 5
10 ( ) 11 10 T elecas DB-GA H-AHB 7. 4 7. 2 10 Mbps 10 1.0 Mbps DB-GA C i i H-AHB C i i 1.0 Mbps 1 1.0 Mbps 1 DB-GA H-AHB T elecas DB-GA H-AHB T elecas IGMP-Snooping JOIN T elecas JOIN JOIN 7. 6 11 T elecas DB-GA MV-R 5 11.1 MBytes 22.5 Mbps 22.5 Mbps 5 DB-GA 15 0.3 Mbps 5 5 MV-R 15 1.5 Mbps DB-GA 4.39 MV-R 6.0 DB-GA MV-R DB-GA 15 MV-R 10 1 T elecas 7. 7
B 26730059 B 15H02702 C 16K01065 12 T elecas 12 DB-GA DPB 4.0 Mbps 4.0 Mbps 7. 1 Dummynet 20 DB-GA 5.63 DPB 7.04 12 T elecas DPB DPB 8. [1] ) http://s.mxtv.jp/company/press/pdf/press2015 1060001.p df ( 2016-11-14) [2] Hua, K.A., Bagouet, O. and Oger, D.: Periodic Broadcast Protocol for Heterogeneous Receivers, Proc. ACM Multimedia Computing and Networking, Vol.5019, No.1, pp.220-231 (2003). [3] Mahanti, A., Eager, D., Vernon, M. and Sundaram-Stukel, D.: Scalable On-Demand Media Streaming with Packet Loss Recovery, IEEE/ACM Trans. on Networking, pp.195-209 (2003). [4] B Vol.J91-B No.3 pp.300-308 (2008). [5] D Vol.J91-D No.3 pp.667-676 (2008) [6] Shi, L., Sessini, P., Mahanti, A., Li, Z. and Eager, D.L.: Scalable Streaming for Heterogeneous Clients, Proc. ACM Multimedia, pp.22-27 (2006). [7] Vol.12 No.5 pp.734-744 (1997) [8] Juhn, L. and Tseng, L.: Fast Data Broadcasting and Receiving Scheme for Popular Video Service, IEEE Trans. on Broadcasting, Vol.44, No.1, pp.100-105 (1998). [9] Vol.2016 pp.109-117 (2016) [10] Chen, Y. and Huang, K.: Multiple Videos Broadcasting Scheme for Near Video-on-Demand Services, Proc. IEEE International. Conference. on Signal Image Technology and Internet Based Systems 2008, pp.52-58 (2008). [11] Gotoh, Y.: A Scheduling Method for Division Based Broadcasting of Multiple Video Considering Data Size, Proc. 4th International Workshop on Advances in Data Engineering and Mobile Computing, pp.464-469 (2015). [12] Vol.109 No,.449 pp.31-36 (2010). [13] Vol.2012-DPS-152 No.24 pp.1-8 (2012). [14] B Vol.J96-B No.10 pp.1217-1225 (2013) [15] :CO-BSW08GTXVL2 ( ) http://corega.jp/prod/co-bsw08gtxvl2/ ( 2016-06- 08)