Energy-efficient caching for Video-on-Demand in Fixed-Mobile Convergent networks

The success of novel bandwidth-consuming multimedia services such as Video-on-Demand (VoD) is leading to a tremendous growth of the Internet traffic. Content caching can help to mitigate such uncontrolled growth by storing video content closer to the users in core, metro and access network nodes. So far, metro and especially access networks supporting mobile and fixed users have evolved independently, leveraging logically (and often also physically) separate infrastructures; this means that mobile users cannot access caches placed in the fixed access network (and vice-versa), even if they are geographically close to them, and energy consumption implications of such undesired effect must be investigated. We define an optimization problem modeling an energy-efficient placement of caches in core, metro and fixed/mobile access nodes of the network. Then, we show how the evolution towards a Fixed-Mobile Converged metro/access network, where fixed and mobile users can share caches, can reduce the energy consumed for VoD content delivery.

[1]  Biswanath Mukherjee,et al.  Energy-efficient content distribution over telecom network infrastructure , 2011, 2011 13th International Conference on Transparent Optical Networks.

[2]  Yaning Liu,et al.  Energy efficient content distribution , 2013, ICC.

[3]  Rodney S. Tucker,et al.  Power consumption and energy efficiency in the internet , 2011, IEEE Network.

[4]  Daniel C. Kilper,et al.  In-network caching effect on optimal energy consumption in content-centric networking , 2012, 2012 IEEE International Conference on Communications (ICC).

[5]  Amin Vahdat,et al.  MediSyn: a synthetic streaming media service workload generator , 2003, NOSSDAV '03.

[6]  Kenji Leibnitz,et al.  Energy efficient content locations for in-network caching , 2012, 2012 18th Asia-Pacific Conference on Communications (APCC).

[7]  Giacomo Verticale,et al.  ICN based shared caching in future converged fixed and mobile network , 2015, 2015 IEEE 16th International Conference on High Performance Switching and Routing (HPSR).

[8]  Daniel C. Kilper,et al.  On the Energy Efficiency of Content Delivery Architectures , 2011, 2011 IEEE International Conference on Communications Workshops (ICC).

[9]  Giacomo Verticale,et al.  Energy-efficient VoD content delivery and replication in integrated metro/access networks , 2014, 2014 IEEE Latin-America Conference on Communications (LATINCOM).

[10]  R.S. Tucker,et al.  Architectures for energy-efficient IPTV networks , 2009, 2009 Conference on Optical Fiber Communication - incudes post deadline papers.

[11]  A. Nirmalathas,et al.  Improving Energy Efficiency of Video on Demand Services , 2011, IEEE/OSA Journal of Optical Communications and Networking.

[12]  Ke Xu,et al.  Video requests from Online Social Networks: Characterization, analysis and generation , 2013, 2013 Proceedings IEEE INFOCOM.

[13]  Yaning Liu,et al.  Fixed and Mobile Convergence: Needs and Solutions , 2014 .