• KSII Transactions on Internet and Information Systems
    Monthly Online Journal (eISSN: 1976-7277)

A Novel Resource Scheduling Scheme for CoMP Systems


Coordinated multiple points transmission and reception (CoMP) technology is used to mitigate the inter-cell interference, and increase cell average user normalized throughput and cell edge user normalized throughput. There are two kinds of radio resource schedule strategies in LTE-A/5G CoMP system, and they are called centralized scheduling strategy and distributed scheduling strategy. The regional centralized scheduling cannot solve interference of inter-region, and the distributed scheduling leads to worse efficiency in the utilize of resources. In this paper, a novel distributed scheduling scheme named 9-Cell alternate authorization (9-CAA) is proposed. In our scheme, time-domain resources are divided orthogonally by coloring theory for inter-region cooperation in 9-Cell scenario [6]. Then, we provide a formula based on 0-1 integer programming to get chromatic number in 9-CAA. Moreover, a feasible optimal chromatic number search algorithm named CNS-9CAA is proposed. In addition, this scheme is expanded to 3-Cell scenario, and name it 3-Cell alternate authorization (3-CAA). At last, simulation results indicate that 9/3-CAA scheme exceed All CU CoMP, 9/3C CU CoMP and DLC resource scheduling scheme in cell average user normalized throughput. Especially, compared with the non-CoMP scheme as a benchmark, the 9-CAA and 3-CAA have improved the edge user normalized throughput by 17.2% and 13.0% respectively.


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Cite this article

[IEEE Style]
W. Zhou, J. Liu, Y. Zhang, C. Yang and X. Yang, "A Novel Resource Scheduling Scheme for CoMP Systems," KSII Transactions on Internet and Information Systems, vol. 11, no. 2, pp. 650-669, 2017. DOI: 10.3837/tiis.2017.02.003.

[ACM Style]
Wen’an Zhou, Jianlong Liu, Yiyu Zhang, Chengyi Yang, and Xuhui Yang. 2017. A Novel Resource Scheduling Scheme for CoMP Systems. KSII Transactions on Internet and Information Systems, 11, 2, (2017), 650-669. DOI: 10.3837/tiis.2017.02.003.