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Shared content addressing protocol (SCAP): optimizing multimedia content distribution at the transport layer

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Abstract
In recent years, the networking community has put a significant research effort in identifying new ways to distribute content to multiple users in a better-than-unicast manner. Scalable delivery is more important now video is the dominant traffic type and further growth is expected. To make content distribution scalable, in-network optimization functions are needed such as caches. The established transport layer protocols are end-to-end and do not allow optimizing transport below the application layer, hence the popularity of overlay application layer solutions located in the network. In this paper, we introduce a novel transport protocol, the Shared Content Addressing Protocol (SCAP) that allows in-network intermediate elements to participate in optimizing the delivery process, using only the transport layer. SCAP runs on top of standard IP networks, and SCAP optimization functions can be plugged-in the network transparently as needed. As such, only transport protocol based intermediate functions need to be deployed in the network, and the applications can stay at the topological end points. We define and evaluate a prototype version of the SCAP protocol using both simulation and a prototype implementation of a transparent SCAP-only intermediate optimization function.
Keywords
Caching, Buffering, Content Distribution, Multicast, Networking, Retransmission, SCAP, Scheduling, Streaming, Time-Shift, Transport protocol, Transparent

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Citation

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Chicago
De Schepper, Koen, Bart De Vleeschauwer, Chris Hawinkel, Werner Van Leekwijck, Jeroen Famaey, Wim Van de Meerssche, and Filip De Turck. 2012. “Shared Content Addressing Protocol (SCAP): Optimizing Multimedia Content Distribution at the Transport Layer.” In IEEE IFIP Network Operations and Management Symposium, ed. Filip De Turck, Luciano Paschoal Gaspary, and Deep Medhi, 302–310. New York, NY, USA: IEEE.
APA
De Schepper, K., De Vleeschauwer, B., Hawinkel, C., Van Leekwijck, W., Famaey, J., Van de Meerssche, W., & De Turck, F. (2012). Shared content addressing protocol (SCAP): optimizing multimedia content distribution at the transport layer. In Filip De Turck, L. Paschoal Gaspary, & D. Medhi (Eds.), IEEE IFIP Network Operations and Management Symposium (pp. 302–310). Presented at the 13th IEEE/IFIP Network Operations and Management Symposium (NOMS - 2012), New York, NY, USA: IEEE.
Vancouver
1.
De Schepper K, De Vleeschauwer B, Hawinkel C, Van Leekwijck W, Famaey J, Van de Meerssche W, et al. Shared content addressing protocol (SCAP): optimizing multimedia content distribution at the transport layer. In: De Turck F, Paschoal Gaspary L, Medhi D, editors. IEEE IFIP Network Operations and Management Symposium. New York, NY, USA: IEEE; 2012. p. 302–10.
MLA
De Schepper, Koen, Bart De Vleeschauwer, Chris Hawinkel, et al. “Shared Content Addressing Protocol (SCAP): Optimizing Multimedia Content Distribution at the Transport Layer.” IEEE IFIP Network Operations and Management Symposium. Ed. Filip De Turck, Luciano Paschoal Gaspary, & Deep Medhi. New York, NY, USA: IEEE, 2012. 302–310. Print.
@inproceedings{2914379,
  abstract     = {In recent years, the networking community has put a significant research effort in identifying new ways to distribute content to multiple users in a better-than-unicast manner. Scalable delivery is more important now video is the dominant traffic type and further growth is expected. To make content distribution scalable, in-network optimization functions are needed such as caches. The established transport layer protocols are end-to-end and do not allow optimizing transport below the application layer, hence the popularity of overlay application layer solutions located in the network. In this paper, we introduce a novel transport protocol, the Shared Content Addressing Protocol (SCAP) that allows in-network intermediate elements to participate in optimizing the delivery process, using only the transport layer. SCAP runs on top of standard IP networks, and SCAP optimization functions can be plugged-in the network transparently as needed. As such, only transport protocol based intermediate functions need to be deployed in the network, and the applications can stay at the topological end points. We define and evaluate a prototype version of the SCAP protocol using both simulation and a prototype implementation of a transparent SCAP-only intermediate optimization function.},
  author       = {De Schepper, Koen and De Vleeschauwer, Bart and Hawinkel, Chris and Van Leekwijck, Werner and Famaey, Jeroen and Van de Meerssche, Wim and De Turck, Filip},
  booktitle    = {IEEE IFIP Network Operations and Management Symposium},
  editor       = {De Turck, Filip and Paschoal Gaspary, Luciano  and Medhi, Deep },
  isbn         = {9781467302685},
  issn         = {1542-1201},
  keyword      = {Caching,Buffering,Content Distribution,Multicast,Networking,Retransmission,SCAP,Scheduling,Streaming,Time-Shift,Transport protocol,Transparent},
  language     = {eng},
  location     = {Maui, Hawaii},
  pages        = {302--310},
  publisher    = {IEEE},
  title        = {Shared content addressing protocol (SCAP): optimizing multimedia content distribution at the transport layer},
  year         = {2012},
}

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