JOURNAL OF CHINA UNIVERSITIES OF POSTS AND TELECOM ›› 2018, Vol. 25 ›› Issue (3): 45-54.doi: 10.19682/j.cnki.1005-8885.2018.0013

• Networks • Previous Articles     Next Articles

Joint system consumption minimization and workload allocation in edge-core network

  

  • Received:2017-08-29 Revised:2018-01-15 Online:2018-06-29 Published:2018-06-30
  • Contact: Shao-Chun WANG E-mail:shaochun_wang@126.com

Abstract: The explosive increase of smart devices and mobile traffic results in heavy burden on backhaul and core network, intolerable network latency and degraded service to the end-users. As a complement to core network, edge network contributes to relieving network burden and improving user experience. To investigate the problem of optimizing the total consumption in an edge-core network, the system consumption minimization problem is formulated considering the energy consumption and delay. Given that the formulated problem is a mixed nonlinear integer programming (MNIP), a low-complexity workload allocation algorithm is subsequently proposed based on interior-point method. The proposed algorithm has an extremely short running time in practice. Finally, simulation results show that edge network can significantly complement core network with much reduced backhaul energy consumption and delay.

Key words: edge network, core network, system consumption optimization, workload allocation