Blockage-Peeking Game of Mobile Strategic Nodes in Millimeter Wave Communications

Badia, Leonardo; Bedin, Andrea

doi:10.1109/medcomnet55087.2022.9810431

Cited by 3 publications

(2 citation statements)

References 32 publications

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“…An extension to drones or devices capable of moving alongside a vertical coordinate can be envisioned in future investigations, but it would not be conceptually different. Actually, even though they are moving on a surface, R and J's positions can be represented in polar coordinates (ρ, ϑ) with the origin in the location of the AP [27]. It is immediate to remark that, while the distance from the AP ρ concretely influences the SNJR perceived by the devices, the angle ϑ just implies a rotational symmetry of the positions.…”

Section: A Environment Layoutmentioning

confidence: 99%

Adversarial Jamming and Catching Games over AWGN Channels with Mobile Players

Perin

Buratto

Anselmi

et al. 2021

2021 17th International Conference on Wireless and Mobile Computing, Networking and Communications (WiMob)

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We study a wireless jamming problem consisting of the competition between a legitimate receiver and a jammer, as a zero-sum game with the value to maximize/minimize being the channel capacity at the receiver's side. Most of the approaches found in the literature consider the two players to be stationary nodes. Instead, we investigate what happens when they can change location, specifically moving along a linear geometry. We frame this at first as a static game, which can be solved in closed form, and subsequently we extend it to a dynamic game, under three different versions for what concerns completeness/perfection of mutual information about the adversary's position, corresponding to different assumptions of concealment/sequentiality of the moves, respectively. We first provide some theoretical conditions that hold for the static game and also help identify good strategies valid under any setup, including dynamic games. Since dynamic games, although more realistic, are characterized by an exploding strategy space, we exploit reinforcement learning to obtain efficient strategies leading to equilibrium outcomes. We show how theoretical findings can be used to train smart agents to play the game, and validate our approach in practical setups.

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Section: A Environment Layoutmentioning

confidence: 99%

Adversarial Jamming and Catching Games over AWGN Channels with Mobile Players

Perin

Buratto

Anselmi

et al. 2021

2021 17th International Conference on Wireless and Mobile Computing, Networking and Communications (WiMob)

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“…In this paper, we introduce a system model for indoor OWC where users affect each other's data rate when located in proximity of each other due to mutual blockage [11], [12]. We model such a behavior as a proximity-induced interference, i.e., as a multiplicative deterioration in the channel gain between a given user device and the infrastructure access point.…”

Section: Introductionmentioning

confidence: 99%

Move Away From Me! User Repulsion Under Proximity-Induced Interference in OWC Systems

Kundacina,

Petkovic,

Munari

et al. 2023

Preprint

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<p>As communication systems shift towards ever higher frequency bands, the propagation of signal between a user device and an infrastructure becomes more susceptible to nearby obstacles, including other users. As an extreme case, we consider such proximity-induced channel impairments in indoor optical wireless communication (OWC) systems. We set up a model, where the achievable OWC data rate depends not only on the relative position between a user device and an infrastructure access point, but also on the location of other users modeled as proximal interferers. We use a reinforcement learning (RL) approach to enable users to find suitable positions, both relative to the access point and to each other, that maximise the sum-rate capacity of the system. Our initial results demonstrate a feasibility of RL-based approach that enables indoor OWC users to find suitable balance between establishing high-rate direct link while remaining distant from proximal interferers.</p>

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Adversarial Obstruction of Millimeter Wave Links

Badia

Mancuso

Marsan

2023

2023 21st Mediterranean Communication and Computer Networking Conference (MedComNet)

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We use a stochastic geometry approach to study an adversarial attack to the physical layer of millimeter wave communications, which is extremely vulnerable to blockage due to obstructions. Previous investigations have applied stochastic geometry to the study of millimeter wave communication scenarios with randomly located obstructions, but in this paper we investigate what happens if some of them are actually due to a malicious attacker. It turns out that, with just few strategically positioned obstructions, an adversary can significantly hinder the millimeter wave link operation and cause extremely high outage probabilities. As expected, scenarios with multiple reflections are more robust against this kind of attack, since they can exploit the diversity of reflected paths, despite their lower quality. Conversely, millimeter wave communications without (or with limited) multipath diversity are shown to be extremely fragile. We also investigate the impact on blockage of different parameters of the obstructions, including their number, shape, and size. Finally, we elaborate the applications of our findings to identify countermeasures against this attack.

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Blockage-Peeking Game of Mobile Strategic Nodes in Millimeter Wave Communications

Cited by 3 publications

References 32 publications

Adversarial Jamming and Catching Games over AWGN Channels with Mobile Players

Adversarial Jamming and Catching Games over AWGN Channels with Mobile Players

Move Away From Me! User Repulsion Under Proximity-Induced Interference in OWC Systems

Adversarial Obstruction of Millimeter Wave Links

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