Jamming attacks in 802.11g — A cognitive radio based approach
Jamming attacks in 802.11g — A cognitive radio based approach
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802.11g 中的干扰攻击 — 基于认知无线电的方法
DOI：
10.1109/milcom.2011.6127467
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发表时间：
2011
期刊：
影响因子：
--
通讯作者：
D. Thuente
中科院分区：
文献类型：
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作者：
S. Prasad;D. Thuente
无线网络容易受到干扰攻击，这会严重降低网络吞吐量。在本文中，我们研究了将认知无线电配置为干扰器的混合干扰攻击下 802.11g 网络的行为和性能。认知无线电具有快速信道切换、快速响应时间和软件可重构性等特点，不仅可以用来改善频谱共享管理，还可以充当有效的干扰器。我们使用单个认知无线电以节能的方式同时干扰三个网络，并拒绝目标网络的任何信道更改协议以避免干扰。我们利用认知无线电的快速信道切换能力直接攻击“g”频段 OFDM 信道。干扰器顺序感知每个网络上的流量，而不是任何网络的一部分。我们展示了 MAC 层和物理层的干扰攻击结果。我们展示了认知无线电如何动态调整其对每个网络上流量的攻击。我们在智能和反应性干扰下单独和共同评估了三个网络的性能。
Wireless networks are susceptible to jamming attacks, which can severely reduce the network throughput. In this paper, we study the behavior and the performance of 802.11g networks under a hybrid jamming attack of configuring a cognitive radio as a jammer. With characteristics such as fast channel switching, quick response time and software reconfigurability, cognitive radios can be used not only to improve the spectrum sharing management, but also to act as an effective jammer. We use a single cognitive radio to simultaneously jam three networks in an energy efficient manner and also to deny any channel change protocol by the targeted network to avoid jamming. We attack the ‘g’ band OFDM channels directly using the fast channel switching capability of the cognitive radio. The jammer sequentially senses traffic on each of the networks without being part of any network. We present the results of the jamming attacks at the MAC and physical layers. We show how the cognitive radio can dynamically adjust its attack to the traffic on each network. We evaluated the performance of three networks individually and together under intelligent and reactive jamming.