Jamming-Resistant Communication: Channel Surfing without Negotiation
Jamming-Resistant Communication: Channel Surfing without Negotiation
复制标题
抗干扰通信：无需协商的频道冲浪
DOI：
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发表时间：
2010
期刊：
影响因子：
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通讯作者：
P. Mohapatra
中科院分区：
文献类型：
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作者：
Shaxun Chen;K. Zeng;P. Mohapatra
信道冲浪是无线通信中防止干扰攻击的一种有效方法。在传统的频道冲浪方案中，双方必须事先协商，以便就频道切换顺序达成一致。然而，谈判进程本身容易受到干扰攻击。在本文中，我们提出了一种新的频道冲浪方法，而不依赖于这样的协商。该方法利用无线衰落信道的互易性，根据通信双方在通信过程中观察到的随机信道状态进行信道切换。因此，它不会引入任何额外的通信开销，可以实现很强的安全性。为了评估我们的方法，我们进行了广泛的实验，使用现成的802.11设备在一个真实的室内环境。实验结果验证了该方法的有效性和安全性。
Channel surfing is an effective method to prevent jamming attacks in wireless communications. In traditional channel surfing schemes, two parties have to negotiate beforehand, in order to agree on the channel switching sequence. However, the negotiation process itself is vulnerable to jamming attacks. In this paper, we propose a novel channel surfing method without relying on such negotiation. Taking advantage of the reciprocity of the wireless fading channel, our method switches channels according to the random channel states observed by the two parties during their communication. Therefore, it does not introduce any extra communication overhead and can achieve strong security. To evaluate our method, we carry out extensive experiments using off-the-shelf 802.11 devices in a real indoor environment. Experimental results validate the efficiency and security of our method.