Delay Guaranteed Joint User Association and Channel Allocation for Fog Radio Access Networks

You, Minglei; Zheng, Gan; Chen, Tianrui; Sun, Hongjian; Chen, Kwang-Cheng

Abstract

In the Fog Radio Access Networks (F-RANs), the local storage and computing capability of Fog Access Points (FAPs) provide new communication resources to address the latency and computing constraints for delay-sensitive applications. To achieve the ultra-low latency, a novel joint user association and channel allocation scheme is proposed in this paper, where the FAPs are clustered from a user-centric perspective. The delay performance is improved regarding both the control signaling procedure and the data transmission procedure. Specifically, the multiple access interference (MAI) between users is analyzed, where the closed-form expression for the effective rate of a typical user with multiple FAP connections and arbitrary interfering users is obtained. With the consideration of MAI, the proposed distributed joint user association and channel allocation algorithm provides a guaranteed delay violation probability. Moreover, the distributed algorithm can be conducted on individual FAPs, whose calculation is simplified by look-up tables. Simulation results show that the proposed algorithm is capable of providing statistical delay performance guarantee including both average delay and delay bound violation probability, which demonstrates its superiority in supporting delay-sensitive applications in F-RANs.

Citation

You, M., Zheng, G., Chen, T., Sun, H., & Chen, K.-C. (2021). Delay Guaranteed Joint User Association and Channel Allocation for Fog Radio Access Networks. IEEE Transactions on Wireless Communications, 20(6), 3723-3733. https://doi.org/10.1109/twc.2021.3053155

• Journal Article Type: Article
• Acceptance Date: Jan 5, 2021
• Online Publication Date: Jan 27, 2021
• Publication Date: 2021-06
• Deposit Date: Oct 28, 2021
• Publicly Available Date: Nov 1, 2021
• Journal: IEEE Transactions on Wireless Communications
• Print ISSN: 1536-1276
• Electronic ISSN: 1558-2248
• Publisher: Institute of Electrical and Electronics Engineers
• Peer Reviewed: Peer Reviewed
• Volume: 20
• Issue: 6
• Pages: 3723-3733
• DOI: https://doi.org/10.1109/twc.2021.3053155
• Keywords: Applied Mathematics; Electrical and Electronic Engineering; Computer Science Applications
• Public URL: https://nottingham-repository.worktribe.com/output/6537476
• Publisher URL: https://ieeexplore.ieee.org/document/9337218
• Additional Information: © 2021 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.