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Bypassing a Reactive Jammer via NOMA-Based Transmissions in Critical Missions

Mohammadreza Amini, Ghazal Asemian, Michel Kulhandjian, Burak Kantarci, Claude D'Amours, Melike Erol-Kantarci

TL;DR

This paper tackles reactive jamming in a cluster-based MIMO-NOMA URLLC setting by deriving reliability, delay, and ESR under finite blocklength with jammer-detection probability. It introduces a jamming-aware mitigation strategy where the gNB reduces transmit power to stay covert against the detector, and formulates an ESR-Max optimization over UE powers, blocklength, and retransmissions. A genetic algorithm solves the mixed-integer non-linear program, showing that 0.99999 reliability and 5 ms latency can be achieved without retransmissions by appropriate power allocation. The results highlight the practical potential of covert-like jamming mitigation in mission-critical wireless systems and provide a framework for jamming-aware radio resource management.

Abstract

Wireless networks can be vulnerable to radio jamming attacks. The quality of service under a jamming attack is not guaranteed and the service requirements such as reliability, latency, and effective rate, specifically in mission-critical military applications, can be deeply affected by the jammer's actions. This paper analyzes the effect of a reactive jammer. Particularly, reliability, average transmission delay, and the effective sum rate (ESR) for a NOMA-based scheme with finite blocklength transmissions are mathematically derived taking the detection probability of the jammer into account. Furthermore, the effect of UEs' allocated power and blocklength on the network metrics is explored. Contrary to the existing literature, results show that gNB can mitigate the impact of reactive jamming by decreasing transmit power, making the transmissions covert at the jammer side. Finally, an optimization problem is formulated to maximize the ESR under reliability, delay, and transmit power constraints. It is shown that by adjusting the allocated transmit power to UEs by gNB, the gNB can bypass the jammer effect to fulfill the 0.99999 reliability and the latency of 5ms without the need for packet re-transmission.

Bypassing a Reactive Jammer via NOMA-Based Transmissions in Critical Missions

TL;DR

This paper tackles reactive jamming in a cluster-based MIMO-NOMA URLLC setting by deriving reliability, delay, and ESR under finite blocklength with jammer-detection probability. It introduces a jamming-aware mitigation strategy where the gNB reduces transmit power to stay covert against the detector, and formulates an ESR-Max optimization over UE powers, blocklength, and retransmissions. A genetic algorithm solves the mixed-integer non-linear program, showing that 0.99999 reliability and 5 ms latency can be achieved without retransmissions by appropriate power allocation. The results highlight the practical potential of covert-like jamming mitigation in mission-critical wireless systems and provide a framework for jamming-aware radio resource management.

Abstract

Wireless networks can be vulnerable to radio jamming attacks. The quality of service under a jamming attack is not guaranteed and the service requirements such as reliability, latency, and effective rate, specifically in mission-critical military applications, can be deeply affected by the jammer's actions. This paper analyzes the effect of a reactive jammer. Particularly, reliability, average transmission delay, and the effective sum rate (ESR) for a NOMA-based scheme with finite blocklength transmissions are mathematically derived taking the detection probability of the jammer into account. Furthermore, the effect of UEs' allocated power and blocklength on the network metrics is explored. Contrary to the existing literature, results show that gNB can mitigate the impact of reactive jamming by decreasing transmit power, making the transmissions covert at the jammer side. Finally, an optimization problem is formulated to maximize the ESR under reliability, delay, and transmit power constraints. It is shown that by adjusting the allocated transmit power to UEs by gNB, the gNB can bypass the jammer effect to fulfill the 0.99999 reliability and the latency of 5ms without the need for packet re-transmission.
Paper Structure (14 sections, 12 equations, 7 figures, 2 tables)

This paper contains 14 sections, 12 equations, 7 figures, 2 tables.

Table of Contents

  1. Introduction
  2. System Model
  3. Network Model
  4. Jammer Model
  5. Transmission Model
  6. Derivation of the Network Metrics in a Jamming-Aware Scenario
  7. Reliability
  8. Packet Delay
  9. Effective Sum Rate
  10. Numerical Results
  11. Parameter Settings
  12. Performance Results
  13. Optimizing the Network Parameters
  14. Conclusions

Figures (7)

  • Figure 1: The network structure for cluster-based MIMO-NOMA
  • Figure 2: $UE_1$ Reliability vs. transmit power $P_1$ and $P_2$ under barrage jamming. $L=2$, $n_b=80$.
  • Figure 3: $UE_1$ reliability vs. transmit power $P_1$ and $P_2$ under reactive jamming. $L=2$, $n_b=80$.
  • Figure 4: $UE_1$ reliability-blocklength. {$P_1, P_2$}={10, 60}[mW]
  • Figure 5: Avg. trans. delay-blocklength{$P_1, P_2$}={10, 60}[mW]
  • ...and 2 more figures

Theorems & Definitions (1)

  • Remark 1