Game-Based Content Caching and Data Sponsor Scheme for the Content Network

콘텐츠 네트워크 환경에서 게임이론을 이용한 콘텐츠 캐싱 및 데이터 스폰서 기법

  • Received : 2018.12.27
  • Accepted : 2019.02.19
  • Published : 2019.07.31


Recently, as the types of services that can be enjoyed in mobile telecommunication networks such as social networks and video streaming are increasing, mobile users(MUs) can access mobile contents easily by consuming mobile data. However, under a mobile telecommunication environment, MUs have to pay a high data fee to a network service provider(SP) in order to enjoy contents. The 'data sponsor' technique, introduced as a way to solve this problem, has attracted attention as a breakthrough method for enhancing contents accessibility of MUs. In this paper, we propose an algorithm that determines the optimal discount rate through the Stackelberg game in the data sponsor environment. We also propose an algorithm to design edge caching, which caches highly popular content for MUs on edge server, through many-to-many matching game. Simulation results clearly indicate that the profit for CP's content consumption is improved by about 6~11%, and the profit of CP according to the ratio of edge caching is improved by about 12% than the other existing schemes under data sponsor environment.

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Fig. 1. Two-stage Stackelberg Game Model

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Fig. 2. Profit for CP’s Content Consumption

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Fig. 3. Profit for SP’s Content Consumption

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Fig. 4. Profit of CP According to the Ratio of Edge Caching

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Fig. 5. Profit of CP over Number of MU

Table 1. System Parameters

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Supported by : 정보통신기술진흥센터


  1. M. Andrews, "Implementing sponsored content in wireless data networks," 51st Annual Allerton Conference on Communication, Control, and Computing, pp.1208-1212, 2013.
  2. M. Andrews, G. Bruns and H. Lee, "Calculating the benefits of sponsored data for an individual content provider," IEEE 48th Annual Conference on Information Sciences and Systems, pp.1-6, 2014.
  3. R. T. Ma, "Subsidization competition: Vitalizing the neutral internet," IEEE/ACM Transactions on Networking, Vol.24, No.4, pp.2563-2576, 2016.
  4. C. Joe-Wong, S. Ha, and M. Chiang, "Sponsoring mobile data: An economic analysis of the impact on users and content providers," IEEE Conference on Computer Communications, pp.1499-1507, 2015.
  5. L. Zhang, W. Wu, and D. Wang, "Sponsored data plan: A two-class service model in wireless data networks," ACM SIGMETRICS, Vol.43, No.1, pp.85-96, 2015.
  6. L. Zhang and D. Wang, "Sponsoring content: Motivation and pitfalls for content service providers," IEEE Conference on Computer Communications Workshops, pp.577-582, 2014.
  7. L. Zhang, W. Wu, and D. Wang, "Tds: Time-dependent sponsored data plan for wireless data traffic market," IEEE International Conference on Computer Communications, pp.1-9, 2016.
  8. W. Wang, Z. Xiong, D. Niyato, and P. Wang, "A hierarchical game with strategy evolution for mobile sponsored content/service markets," IEEE Global Communications Conference, pp.1-6, 2017.
  9. X. Gong, L. Duan, X. Chen, and J. Zhang, "When social network effect meets congestion effect in wireless networks: Data usage equilibrium and optimal pricing," IEEE Journal on Selected Areas in Communications, Vol.35, No.2, pp.449-462, 2017.
  10. J. B. Rosen, "Existence and uniqueness of equilibrium points for concave n-person games," Econometrica: Journal of the Econometric Society, pp.520-534, 1965.
  11. A. Gilpin, S. Hoda, J. Pena, and T. Sandholm, "Gradientbased Algorithms for Finding Nash Equilibria in Extensive Form Games," International Conference on Game Theory, 2007.
  12. G. Miao, N. Himayat, and Y. Li, "Energy-Efficient Transmission in Frequency-Selective Channels," IEEE Global Telecommunications Conference, pp.1-5, 2008.
  13. Y. Kim, Game Theory, ParkYoungSa, 2011.
  14. J. Li, M. Liu, J. Lu, F. Shu, Y. Zhang, S. Bayat, and K. Jayakody, "On Social-Aware Content Caching for D2DEnabled Cellular Networks with Matching Theory," IEEE Internet of Things Journal, pp.1-14, 2017.