Physical Layer Security for Edge Caching Wireless Networks
Lin X, Ng DW, Schober R, Wong VW (2021)
Publication Language: English
Publication Type: Book chapter / Article in edited volumes
Publication year: 2021
Publisher: Cambridge University Press
Edited Volumes: Wireless Edge Caching: Modeling, Analysis, and Optimization
City/Town: Cambridge
Pages Range: 344-367
ISBN: 978-1-108-48083-3
DOI: 10.1017/9781108691277.018
Abstract
In this chapter, we discuss the application of edge caching to enhance the physical layer security of cellular networks with limited backhaul capacity. By proactively sharing the same content across a subset of base stations (BSs) through both caching and backhaul loading, secure cooperative multiple-input multiple-output (MIMO) transmission of several BSs can be dynamically enabled in accordance with the cache status, the channel conditions, and the backhaul capacity. We formulate a two-stage nonconvex optimization problem for minimizing the total transmit power while providing quality of service (QoS) and guaranteeing communication secrecy during content delivery, where the caching and the cooperative MIMO transmission policy are optimized in an offline caching stage and an online delivery stage, respectively. Caching is shown to be beneficial as it reduces the data sharing overhead imposed on the capacity-constrained backhaul links, introduces additional secure degrees of freedom, and enables a power-efficient communication system design.
Authors with CRIS profile
Involved external institutions
University of Luxembourg
Luxembourg (LU)
University of British Columbia
Canada (CA)
University of New South Wales (UNSW)
Australia (AU)
Luxembourg (LU)
University of British Columbia
Canada (CA)
University of New South Wales (UNSW)
Australia (AU)
How to cite
APA:
Lin, X., Ng, D.W., Schober, R., & Wong, V.W. (2021). Physical Layer Security for Edge Caching Wireless Networks. In Thang X. Vu, Ejder Baştuğ, Symeon Chatzinotas, Tony Q. S. Quek (Eds.), Wireless Edge Caching: Modeling, Analysis, and Optimization. (pp. 344-367). Cambridge: Cambridge University Press.
MLA:
Lin, Xiang, et al. "Physical Layer Security for Edge Caching Wireless Networks." Wireless Edge Caching: Modeling, Analysis, and Optimization. Ed. Thang X. Vu, Ejder Baştuğ, Symeon Chatzinotas, Tony Q. S. Quek, Cambridge: Cambridge University Press, 2021. 344-367.
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