Cell-Free Massive MIMO Networks: Optimal Power Control Against Active Eavesdropping



Hoang, Tiep M, Hien, Quoc Ngo, Duong, Trung Q, Hoang, Duong Tuan and Marshall, Alan ORCID: 0000-0002-8058-5242
(2018) Cell-Free Massive MIMO Networks: Optimal Power Control Against Active Eavesdropping. IEEE TRANSACTIONS ON COMMUNICATIONS, 66 (10). pp. 4724-4737.

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Abstract

This paper studies the security aspect of a recently introduced 'cell-free massive MIMO' network under a pilot spoofing attack. First, a simple method to recognize the presence of this type of an active eavesdropping attack to a particular user is shown. In order to deal with this attack, we consider the problem of maximizing the achievable data rate of the attacked user or its achievable secrecy rate. The corresponding problems of minimizing the power consumption subject to security constraints are also considered in parallel. Path-following algorithms are developed to solve the posed optimization problems under different power allocation to access points (APs). Under equip-power allocation to APs, these optimization problems admit closed-form solutions. Numerical results show their efficiency.

Item Type: Article
Uncontrolled Keywords: Cell-free, channel estimation, pilot spoofing attack, active eavesdropping, inner convex approximation
Depositing User: Symplectic Admin
Date Deposited: 21 May 2018 08:14
Last Modified: 19 Jan 2023 06:33
DOI: 10.1109/TCOMM.2018.2837132
Related URLs:
URI: https://livrepository.liverpool.ac.uk/id/eprint/3021445

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