Policing 802.11 MAC Misbehaviours

Patras, Paul; Feghhi, Hessan; Malone, David; Leith, Douglas J.

doi:10.1109/tmc.2015.2478436

Cited by 7 publications

(6 citation statements)

References 33 publications

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“…Second, Internet layer attacks bring less pronounced benefit to the attacker and less pronounced harm to the honest nodes than does aggressive competition for the radio channel under link-layer TRAs. Single-hop settings are also easier to defend: when a traffic remapping attacker has been identified, it can be punished by neighboring honest nodes via responding in kind, e.g., increased transmission rate or jamming [46]. In a multi-hop setting, however, the punishment of TRAs may prove ineffective if known local-scope defense mechanisms are directly mimicked.…”

Section: Related Workmentioning

confidence: 99%

Mitigating Traffic Remapping Attacks in Autonomous Multihop Wireless Networks

Konorski¹,

Szott

2022

IEEE Internet Things J.

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Multi-hop wireless networks with autonomous nodes are susceptible to selfish traffic remapping attacks (TRAs). Nodes launching TRAs leverage the underlying channel access function to receive an unduly high quality of service (QoS) for packet flows traversing source-to-destination routes. TRAs are easy to execute, impossible to prevent, difficult to detect, and harmful to the QoS of honest nodes. Recognizing the need for providing QoS security, we use a novel network-oriented QoS metric to propose a self-enforcing game-theoretic mitigation approach. By switching between TRA and honest behavior, selfish nodes engage in a noncooperative multistage game in pursuit of high QoS. We analyze feasible node strategies and design a distributed signaling mechanism called DISTRESS, under which, given certain conditions, the game produces a desirable outcome: after an upper-bounded play time, honesty tends to become a selfish node's best reply behavior, while yielding acceptable QoS to most or all nodes. We verify these findings by Monte Carlo and ns-3 simulations of static and mobile nodes.

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Section: Related Workmentioning

confidence: 99%

Mitigating Traffic Remapping Attacks in Autonomous Multihop Wireless Networks

Konorski¹,

Szott

2022

IEEE Internet Things J.

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“…Once detected [2], [4], selfish MAC-layer attacks launched by the relay station A cannot be simply punished by banning the attacker from further communication (by deauthentication and blacklisting), as this would mean loss of network access for station B. Revoking A's privileged status at the AP is one possibility.…”

Section: Defense Measuresmentioning

confidence: 99%

Selfish Attacks in Two-Hop IEEE 802.11 Relay Networks: Impact and Countermeasures

Szott

Konorski

2018

IEEE Wireless Commun. Lett.

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In IEEE 802.11 networks, selfish stations can pursue a better quality of service (QoS) through selfish MAC-layer attacks. Such attacks are easy to perform, secure routing protocols do not prevent them, and their detection may be complex. Twohop relay topologies allow a new angle of attack: a selfish relay can tamper with either source traffic, transit traffic, or both. We consider the applicability of selfish attacks and their variants in the two-hop relay topology, quantify their impact, and study defense measures.

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“…For the implementation of Imola we use the Broadcom BCM4318 wireless cards. The motivation behind this hardware choice is twofold: (i) a MAC central processing unit (CPU) controls the card's behaviour in real time by running a dedicated firmware, which is an essential feature given the strict timing requirements of our protocol; and (ii) the device is deployable with the OpenFWWF open-source firmware, 7 which provides enhanced programmability and access to the card's internals, as documented by recent research [28][29][30] . Although these cards do not support sub-gigahertz operation, which are characteristic to TVWS, our proof-of-concept implementation provides sufficient insights into the feasibility of running Imola in practical multi-hop wireless networks.…”

Section: Hardware Platformmentioning

confidence: 99%

Imola: A decentralised learning-driven protocol for multi-hop White-Fi

Facchi

Gringoli

Malone

et al. 2017

Computer Communications

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In this paper we tackle the digital exclusion problem in developing and remote locations by proposing Imola, an inexpensive learning-driven access mechanism for multi-hop wireless networks that operate across TV white-spaces (TVWS). Stations running Imola only rely on passively acquired neighbourhood information to achieve scheduled-like operation in a decentralised way, without explicit synchronisation. Our design overcomes pathological circumstances such as hidden and exposed terminals that arise due to carrier sensing and are exceptionally problematic in low frequency bands. We present a prototype implementation of our proposal and conduct experiments in a real test bed, which confirms the practical feasibility of deploying our solution in mesh networks that build upon the IEEE 802.11af standard. Finally, the extensive system level simulations we perform demonstrate that Imola achieves up to 4x\u97 more throughput than the channel access protocol defined by the standard and reduces frame loss rate by up to 100%

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Policing 802.11 MAC Misbehaviours

Cited by 7 publications

References 33 publications

Mitigating Traffic Remapping Attacks in Autonomous Multihop Wireless Networks

Mitigating Traffic Remapping Attacks in Autonomous Multihop Wireless Networks

Selfish Attacks in Two-Hop IEEE 802.11 Relay Networks: Impact and Countermeasures

Imola: A decentralised learning-driven protocol for multi-hop White-Fi

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