A4 Article in conference proceedings
Optimal Buffer Resource Allocation in Wireless Caching Networks (2019)

Liu, T., Chang, Z., Li, J., Shu, F., Ristaniemi, T., & Han, Z. (2019). Optimal Buffer Resource Allocation in Wireless Caching Networks. In SPAWC 2019 : IEEE 20th International Workshop on Signal Processing Advances in Wireless Communications. IEEE. IEEE International Workshop on Signal Processing Advances in Wireless Communications. https://doi.org/10.1109/SPAWC.2019.8815539

JYU authors or editors

Publication details

All authors or editors: Liu, Tingting; Chang, Zheng; Li, Jun; Shu, Feng; Ristaniemi, Tapani; Han, Zhu

Parent publication: SPAWC 2019 : IEEE 20th International Workshop on Signal Processing Advances in Wireless Communications

Place and date of conference: Cannes, France, 2.-5.7.2019

eISBN: 978-1-5386-6528-2

Journal or series: IEEE International Workshop on Signal Processing Advances in Wireless Communications

ISSN: 2325-3789

eISSN: 2325-3789

Publication year: 2019

Publisher: IEEE

Publication country: United States

Publication language: English

DOI: https://doi.org/10.1109/SPAWC.2019.8815539

Publication open access: Not open

Publication channel open access: 

Publication is parallel published (JYX): https://jyx.jyu.fi/handle/123456789/67176

Abstract

Wireless caching systems have been exhaustively investigated in recent years. Due to limited buffer capacity, and unbalanced arrival and service rates, the backlogs may exist in the caching node and even cause buffer overflow. In this paper, we first investigate the relationship among backlogs, buffer capacity, data arrival rate and service rate, utilizing the martingale theory which is flexible in handling any arrival and service processes. Then given a target buffer overflow probability, the minimal required buffer portion is determined. If the devoted buffer capacity can fulfill all serving users' minimal buffer requirements, an optimization problem is constructed with the objective to minimize the overall buffer overflow probability. The optimization solution is obtained by a modified waterfilling scheme. Finally, the numerical results are illustrated to demonstrate the superiority of the proposed scheme.

Keywords: wireless networks; wireless data transmission; optimisation

Free keywords: optimal buffer resource allocation; wireless caching networks

Contributing organizations

Ministry reporting: Yes

Reporting Year: 2019

JUFO rating: 1