Massive MIMO Pilot Retransmission Strategies for Robustification against Jamming

TL;DR

This paper introduces pilot retransmission strategies to enhance the robustness of massive MIMO systems against jamming attacks during training and data phases, providing analytical insights and mitigation techniques.

Contribution

It presents novel anti-jamming pilot retransmission methods for massive MIMO, including analysis of system performance under jamming and counter-attack strategies for different attack types.

Findings

Achievable rate derived under jamming conditions

Proposed counter-attack strategies improve system robustness

Numerical results confirm effectiveness of the schemes

Abstract

This letter proposes anti-jamming strategies based on pilot retransmission for a single user uplink massive MIMO under jamming attack. A jammer is assumed to attack the system both in the training and data transmission phases. We first derive an achievable rate which enables us to analyze the effect of jamming attacks on the system performance. Counter-attack strategies are then proposed to mitigate this effect under two different scenarios: random and deterministic jamming attacks. Numerical results illustrate our analysis and benefit of the proposed schemes.