Hybrid OFDMA Resource Allocation Scheme for Ensuring Required Level of Proportional Fairness
Joint Authors
Sun, Ming
Zhai, Kangle
Xu, Yaoqun
Wang, Ying
Cao, Wei
Source
Mathematical Problems in Engineering
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-19, 19 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-10-23
Country of Publication
Egypt
No. of Pages
19
Main Subjects
Abstract EN
The new-generation wireless communication networks are envisioned to offer higher sum data rates along with the required level of fairness.
Previous works tend to suffer from a decayed performance as subcarriers become relatively insufficient in allocation to users.
To maximize the sum data rates and ensure the required level of proportional fairness, this paper presents a hybrid OFDMA resource allocation scheme which uses Hungarian algorithm combined with a greedy method for subcarrier allocation and uses bee colony optimization for power allocation.
The proposed subcarrier allocation scheme can make full use of advantages of both globally optimal Hungarian algorithm in enhancing sum data rates and locally optimal greedy method in maintaining a reasonable fairness level and can make Hungarian algorithm work in a searching mode for further improvement of sum data rates and fairness.
The proposed power allocation scheme can converge to the required level of proportional fairness but with higher sum data rates if the subcarrier allocation does not achieve the required fairness.
Simulation results show that the proposed scheme can obtain the required level of proportional fairness but with higher sum data rates even if subcarriers are relatively insufficient in allocation to users.
Complexity analysis shows the proposed method has moderate complexity.
American Psychological Association (APA)
Sun, Ming& Zhai, Kangle& Cao, Wei& Wang, Ying& Xu, Yaoqun. 2020. Hybrid OFDMA Resource Allocation Scheme for Ensuring Required Level of Proportional Fairness. Mathematical Problems in Engineering،Vol. 2020, no. 2020, pp.1-19.
https://search.emarefa.net/detail/BIM-1195745
Modern Language Association (MLA)
Sun, Ming…[et al.]. Hybrid OFDMA Resource Allocation Scheme for Ensuring Required Level of Proportional Fairness. Mathematical Problems in Engineering No. 2020 (2020), pp.1-19.
https://search.emarefa.net/detail/BIM-1195745
American Medical Association (AMA)
Sun, Ming& Zhai, Kangle& Cao, Wei& Wang, Ying& Xu, Yaoqun. Hybrid OFDMA Resource Allocation Scheme for Ensuring Required Level of Proportional Fairness. Mathematical Problems in Engineering. 2020. Vol. 2020, no. 2020, pp.1-19.
https://search.emarefa.net/detail/BIM-1195745
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1195745