Impact of Random Jammers on the Performance of Underwater Acoustic Communication Systems

核心概念

Random jammers distributed in the seabed can significantly degrade the coverage probability, average rate, and energy efficiency of legitimate underwater acoustic communication links.

要約

The paper presents the first study that considers jamming attacks by random jammers present in the surroundings of legitimate transceivers in underwater acoustic communication systems. It investigates the impact of jamming attacks on various performance parameters of the legitimate underwater acoustic communication link, including coverage probability, average rate, and energy efficiency.
The authors utilize stochastic geometry to model the random distribution of jammers and derive tractable expressions for the performance metrics. They consider shallow, mid, and deep water scenarios and analyze how the depth of the underwater node and the intensity of jammers affect the legitimate link's performance.
The results reveal that on average, jamming in deep water has a relatively high impact on the performance of the legitimate link compared to shallow water. Increasing the jamming power or the number of jammers decreases the coverage probability, average rate, and energy efficiency of the legitimate communication. There is also a tradeoff between average rate and energy efficiency, as increasing the transmit power of the legitimate node improves the average rate but reduces the energy efficiency.
The authors validate their analysis through Monte Carlo simulations, which closely match the analytical results. This work provides valuable insights for designing robust and energy-efficient underwater acoustic communication systems in the presence of jamming attacks.

統計

Increasing the jamming power from 5 to 100 Watts reduces the coverage probability from 0.9 to 0.1 in shallow water with 10 jammers per km.
Increasing the transmit power of the legitimate node from 5 to 100 Watts increases the average rate from 2 to 7 bps in shallow water with 10 jammers per km.
Increasing the jamming power from 5 to 100 Watts reduces the energy efficiency from 0.35 to 0.05 bps/Joule in shallow water with 10 jammers per km.

引用

"Random jammers distributed in the seabed can significantly degrade the coverage probability, average rate, and energy efficiency of legitimate underwater acoustic communication links."
"On average, jamming in deep water has a relatively high impact on the performance of the legitimate link compared to shallow water."
"There is a tradeoff between average rate and energy efficiency, as increasing the transmit power of the legitimate node improves the average rate but reduces the energy efficiency."

抽出されたキーインサイト

Performance Analysis of Underwater Acoustic Channel Amid Jamming by Random Jammers

by Waqas Aman,S... 場所 arxiv.org 05-07-2024

https://arxiv.org/pdf/2405.02885.pdf

深掘り質問

How can the legitimate nodes dynamically adjust their transmit power and other parameters to mitigate the impact of random jammers and maintain acceptable performance

In the context of underwater acoustic communication systems facing random jamming attacks, legitimate nodes can dynamically adjust their transmit power and other parameters to mitigate the impact of jammers and uphold acceptable performance levels. One approach is for the legitimate nodes to implement adaptive power control mechanisms. By continuously monitoring the channel conditions and the presence of jamming signals, the nodes can dynamically vary their transmit power to maintain a desired Signal-to-Jamming-and-Noise Ratio (SJNR). This adaptive power control allows the nodes to boost their transmission power when the interference from jammers is high and reduce it when the channel conditions are favorable, thus optimizing performance.
Furthermore, the legitimate nodes can employ sophisticated modulation and coding schemes that are resilient to jamming attacks. By utilizing error-correcting codes and modulation techniques that can combat the effects of interference, the nodes can enhance the robustness of their communication links. Additionally, implementing frequency hopping or spread spectrum techniques can help in spreading the signal energy over a wider bandwidth, making it more challenging for jammers to disrupt the communication.
Moreover, the legitimate nodes can leverage beamforming and directional communication strategies to focus their transmission towards the intended receiver while minimizing the impact of jamming signals from other directions. By steering their transmissions spatially, the nodes can enhance the signal-to-interference ratio and improve communication reliability in the presence of random jammers.

What are the potential countermeasures or anti-jamming techniques that can be employed by the legitimate nodes to detect and resist the random jamming attacks in underwater acoustic communication systems

To detect and resist random jamming attacks in underwater acoustic communication systems, legitimate nodes can employ various countermeasures and anti-jamming techniques. One effective approach is the utilization of cognitive radio capabilities, where the nodes can intelligently sense the spectrum for jamming signals and dynamically switch to less congested frequencies. By constantly monitoring the environment and adapting their operating frequency, the nodes can evade the impact of jammers and maintain uninterrupted communication.
Furthermore, the nodes can implement interference cancellation techniques to mitigate the effects of jamming signals. By employing sophisticated signal processing algorithms, the nodes can separate the legitimate signals from the jamming interference, allowing for successful data reception even in the presence of malicious attacks.
Additionally, the use of encryption and authentication mechanisms can enhance the security of the communication link and prevent unauthorized access or tampering by jammers. By encrypting the transmitted data and implementing robust authentication protocols, the nodes can ensure the confidentiality and integrity of their communication, making it harder for jammers to disrupt the system.
Moreover, collaborative jamming detection schemes, where multiple nodes cooperate to identify and locate jamming sources, can be employed. By sharing information and collectively analyzing the received signals, the nodes can effectively detect and neutralize jamming attacks, safeguarding the integrity of the communication network.

How can the insights from this study be extended to other types of wireless communication systems that operate in harsh and dynamic environments, such as satellite communications or terrestrial wireless networks

The insights gained from studying the impact of random jammers on underwater acoustic communication systems can be extended to other wireless communication systems operating in harsh and dynamic environments, such as satellite communications or terrestrial wireless networks. The principles of adaptive power control, modulation resilience, and interference mitigation techniques can be applied across different communication domains to enhance performance and combat external threats.
In satellite communications, where the link quality can be affected by atmospheric conditions and intentional interference, similar adaptive power control mechanisms can be utilized to optimize the satellite's transmit power based on the channel conditions. Employing robust modulation and coding schemes can improve the link reliability in the presence of noise and interference, ensuring seamless data transmission.
For terrestrial wireless networks, especially in urban or industrial environments with high levels of interference, techniques like beamforming and directional communication can be beneficial. By steering transmission beams towards the intended receivers and away from sources of interference, terrestrial nodes can enhance signal quality and combat jamming attacks effectively.
Furthermore, the use of cognitive radio capabilities and spectrum sensing techniques can enable terrestrial wireless networks to dynamically adapt to changing environmental conditions and avoid congested or jammed frequencies. By intelligently managing the spectrum and selecting optimal communication channels, these networks can maintain reliable and secure communication even in challenging scenarios.