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Joint remote radio heads and baseband units pool resource scheduling for delay-aware traffic in cloud radio access networks

Author

Listed:
  • Shichao Li

    (Gansu Institute of Political Science and law
    Gansu Institute of Political Science and Law)

  • Qiuyun Wang

    (Gansu Institute of Political Science and law
    Gansu Institute of Political Science and Law)

  • Weigang Kou

    (Gansu Institute of Political Science and law
    Gansu Institute of Political Science and Law)

  • Dengtai Tan

    (Gansu Institute of Political Science and law
    Gansu Institute of Political Science and Law)

Abstract

Due to the centralized signal processing and powerful computational ability, cloud radio access networks (C-RAN) is considered as a promising technique to meet the increasing demand of high-data-rate services of the fifth generation wireless communications. This paper investigates the stochastic optimization problem of C-RAN by joint remote radio heads and baseband units pool resource scheduling to achieve the throughput utility maximization. We formulate a problem to maximize the average throughput utility while stabilizing all processing and transmission queues under the power, subcarrier and computational resources constraints. By utilizing Lyapunov optimization technique, the primal problem can be decomposed into four subproblems. Throughput utility maximization, admission control and computational resource allocation subproblems can be solved easily. For the joint power and subcarrier allocation subproblem, we utilize time-sharing and alternating approaches to obtain a feasible solution. By utilizing the results of four subproblems, a joint admission control and resource allocation (JACRA) algorithm is proposed. The simulation results are provided to show that the total average throughput of JACRA algorithm is increased by 4.02% compared with joint Hungarian and iterative waterfilling (JHIW) algorithm, but the total average backlogs of JACRA algorithm are decreased by 7.04% when the control parameter grows from 1 to 10.

Suggested Citation

  • Shichao Li & Qiuyun Wang & Weigang Kou & Dengtai Tan, 2019. "Joint remote radio heads and baseband units pool resource scheduling for delay-aware traffic in cloud radio access networks," Telecommunication Systems: Modelling, Analysis, Design and Management, Springer, vol. 71(1), pages 77-91, May.
    • Handle: RePEc:spr:telsys:v:71:y:2019:i:1:d:10.1007_s11235-018-0506-5
    DOI: 10.1007/s11235-018-0506-5
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    References listed on IDEAS

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    1. Ali Alnoman & Alagan Anpalagan, 2017. "Towards the fulfillment of 5G network requirements: technologies and challenges," Telecommunication Systems: Modelling, Analysis, Design and Management, Springer, vol. 65(1), pages 101-116, May.
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