A General Security Approach for Soft-information Decoding against Smart Bursty Jammers
A General Security Approach for Soft-information Decoding against Smart Bursty Jammers
复制标题
针对智能突发干扰器的软信息解码的通用安全方法
DOI：
10.1109/gcwkshps56602.2022.10008541
复制
发表时间：
2022
期刊：
影响因子：
--
通讯作者：
Yazicigil, Rabia Tugce
中科院分区：
文献类型：
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作者：
Ercan, Furkan;Galligan, Kevin;Duffy, Ken R.;Medard, Muriel;Starobinski, David;Yazicigil, Rabia Tugce
诸如干扰之类的恶意攻击会对无线通信协议造成严重破坏或完全拒绝服务（DoS）。此外，干扰设备变得越来越智能，使其难以被发现。前向纠错技术通常用于保护通信免受信道噪声的有害影响，它增加了数据的冗余度。软信息纠错解码器从接收器获得可靠性信息以通知它们的解码，但是在存在干扰的情况下，这样的信息是误导性的并且导致降低的纠错性能。由于解码器假设噪声独立于每个比特发生，因此突发干扰将导致比非突发干扰更大的性能下降。在这里，我们建立，但是，这种时间依赖性可以帮助推断哪些位已受到干扰，从而使反措施。特别是，我们引入了一个预解码处理步骤，更新似然比（LLR）的可靠性信息，以反映在干扰的存在下的推断，使任何软检测解码器的解码性能提高。所提出的方法不需要改变解码算法。仿真结果表明，该方法正确地推断出在任何接收帧的干扰的重要比例。一个特定的解码算法，最近推出的ORBGRAND，结果表明，所提出的方法减少了误块率（BLER）的数量级的选择的代码，并防止在接收器完全拒绝服务。
Malicious attacks such as jamming can cause significant disruption or complete denial of service (DoS) to wireless communication protocols. Moreover, jamming devices are getting smarter, making them difficult to detect. Forward error correction, which adds redundancy to data, is commonly deployed to protect communications against the deleterious effects of channel noise. Soft-information error correction decoders obtain reliability information from the receiver to inform their decoding, but in the presence of a jammer such information is misleading and results in degraded error correction performance. As decoders assume noise occurs independently to each bit, a bursty jammer will lead to greater degradation in performance than a non-bursty one. Here we establish, however, that such temporal dependencies can aid inferences on which bits have been subjected to jamming, thus enabling counter-measures. In particular, we introduce a pre-decoding processing step that updates-likelihood ratio (LLR) reliability information to reflect inferences in the presence of a jammer, enabling improved decoding performance for any soft detection decoder. The proposed method requires no alteration to the decoding algorithm. Simulation results show that the method correctly infers a significant proportion of jamming in any received frame. Results with one particular decoding algorithm, the recently introduced ORBGRAND, show that the proposed method reduces the block-error rate (BLER) by an order of magnitude for a selection of codes, and prevents complete DoS at the receiver.
IEEE 802.11 网络数据速率适配算法调查
DOI：
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发表时间：
2017
期刊：
2017 International Conference on Current Trends in Computer, Electrical, Electronics and Communication (CTCEEC)
影响因子：
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作者：
Dr. Mahadev A. Gawas;R. Tambi
通讯作者：
R. Tambi
无线物联网网络中非法访问和基于冲突的攻击检测的多假设顺序测试
影响因子：
10.6
作者：
Bikalpa Upadhyaya;Sumei Sun;B. Sikdar
通讯作者：
B. Sikdar
具有 LUT 辅助错误模式调度的固定延迟 ORBGRAND 解码器架构
DOI：
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发表时间：
2021
期刊：
IEEE Transactions on Circuits and Systems Part 1: Regular Papers
影响因子：
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作者：
C. Condo
通讯作者：
C. Condo