University of Oulu

B. Wang, Y. Jiang, F. Zheng, M. Bennis, X. Gao and X. You, "Joint Redundant MDS Codes and Cluster Cooperation Based Coded Caching in Fog Radio Access Networks," 2020 IEEE International Conference on Communications Workshops (ICC Workshops), Dublin, Ireland, 2020, pp. 1-6, doi: 10.1109/ICCWorkshops49005.2020.9145207

Joint redundant MDS codes and cluster cooperation based coded caching in fog radio access networks

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Author: Wang, Bao1,2,3; Jiang, Yanxiang1,2,3; Zheng, Fu-Chun1,4;
Organizations: 1National Mobile Communications Research Laboratory, Southeast University, Nanjing 210096, China
2State Key Laboratory of Integrated Services Networks, Xidian University, Xi’an 710071, China
3Key Laboratory of Wireless Sensor Network & Communication, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, 865 Changning Road, Shanghai 200050, China
4School of Electronic and Information Engineering, Harbin Institute of Technology, Shenzhen 518055, China
5Centre for Wireless Communications, University of Oulu, Oulu 90014, Finland
Format: article
Version: accepted version
Access: open
Online Access: PDF Full Text (PDF, 0.4 MB)
Persistent link: http://urn.fi/urn:nbn:fi-fe2020111390099
Language: English
Published: Institute of Electrical and Electronics Engineers, 2020
Publish Date: 2020-11-13
Description:

Abstract

In this paper, we investigate maximum-distance separable (MDS) codes and cluster based coded caching in fog radio access networks (F-RANs). In order to minimize the fronthaul rate, multicast opportunities need to be constructed at the cloud server. Firstly, a redundant MDS codes based coded placement scheme is proposed to provide redundant coded packets and symmetrical cache contents. The redundant coded packets can be used to construct multicast opportunities for requests on the same file. Furthermore, based on the symmetrical cache contents, we propose a cluster cooperation based coded delivery scheme, which can induce considerable multicast opportunities between any two clusters regardless of whether the requests are on the same file or not. Finally, by utilizing the redundant coded packets and the symmetry of cache contents, a joint redundant MDS codes and cluster cooperation based coded caching policy is proposed to minimize the fronthaul rate. Simulation results show that our proposed policy can provide 30% savings of the fronthaul rate compared to the MDS-based uncoded delivery policy.

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Series: IEEE/CIC International Conference on Communications in China - Workshops
ISSN: 2474-9133
ISSN-E: 2474-9141
ISSN-L: 2474-9133
ISBN: 978-1-7281-7440-2
ISBN Print: 978-1-7281-7441-9
Pages: 1 - 6
Article number: 9145207
DOI: 10.1109/ICCWorkshops49005.2020.9145207
OADOI: https://oadoi.org/10.1109/ICCWorkshops49005.2020.9145207
Host publication: 2020 IEEE International Conference on Communications Workshops (ICC Workshops)
Conference: IEEE International Conference on Communications Workshops (ICC Workshops)
Type of Publication: A4 Article in conference proceedings
Field of Science: 213 Electronic, automation and communications engineering, electronics
Subjects:
Funding: This work was supported in part by the Natural Science Foundation of China under Grant 61971129, the Natural Science Foundation of Jiangsu Province under Grant BK20181264, the National Key R&D Program of China under Grant 2018YFB1801103, the Research Fund of the State Key Laboratory of Integrated Services Networks (Xidian University) under Grant ISN19-10, and the Research Fund of the Key Laboratory of Wireless Sensor Network & Communication (Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences) under Grant 2017002.
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