TIIS (한국인터넷정보학회)
Current Result Document :
| 한글제목(Korean Title) |
A Novel Resource Scheduling Scheme for CoMP Systems |
| 영문제목(English Title) |
A Novel Resource Scheduling Scheme for CoMP Systems |
| 저자(Author) |
Wen’an Zhou
Jianlong Liu
Yiyu Zhang
Chengyi Yang
Xuhui Yang
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| 원문수록처(Citation) |
VOL 11 NO. 02 PP. 0650 ~ 0669 (2017. 02) |
한글내용
(Korean Abstract) |
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영문내용
(English Abstract) |
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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| 키워드(Keyword) |
LTE-A/5G CoMP
inter-region cooperation
alternate authorization
chromatic number
user normalized throughput
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| 파일첨부 |
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