论文标题

快进的继电器方案,以减轻全双工收音机的干扰攻击

Fast-Forward Relaying Scheme to Mitigate Jamming Attacks by Full-Duplex Radios

论文作者

Chaudhary, Vivek, Harshan, J.

论文摘要

在这项工作中,我们解决了在有能力执行干扰攻击的全双工对手的情况下,低延迟数据包的可靠通信,同时也能够测量各种频段上的功率水平。首先,由于存在强大的对手,我们指出,由于未使用的频带可能无法使用,传统的频率跳跃无济于事,此外,全双工对手将检测到受害者之间的频段之间的过渡。确定这些挑战,我们提出了一种新的合作缓解策略,被称为半相关的快速前进的全模具(SC-FFFD)继电器技术,其中,受害者节点在切换到新频率束缚时,寻求了其能力的用户的帮助,这也是一个完整的电台,即可通过全途中的远期向前派出了一份信息。同时,这两个节点在堵塞的频带上合作使用其剩余功能,以使对手继续执行对同一乐队的干扰攻击。将On-Off键合(OOK)和相移键(PSK)作为受害者和辅助节点的调节方案,我们在共同解码两个节点的信息符号的可能性上得出了上限,并随后衍生了分析解决方案,以使两个频率频段之间的电力范围降低了两个频段之间的误差。我们还为各种信噪比值和PSK星座提供了广泛的仿真结果,以展示所提出的方法的功效。

In this work, we address reliable communication of low-latency packets in the presence of a full-duplex adversary that is capable of executing a jamming attack while also being able to measure the power levels on various frequency bands. Due to the presence of a strong adversary, first, we point out that traditional frequency-hopping does not help since unused frequency bands may not be available, and moreover, the victim's transition between the frequency bands would be detected by the full-duplex adversary. Identifying these challenges, we propose a new cooperative mitigation strategy, referred to as the Semi-Coherent Fast-Forward Full-Duplex (SC-FFFD) relaying technique, wherein the victim node, upon switching to a new frequency band, seeks the assistance of its incumbent user, which is also a full-duplex radio, to instantaneously forward its messages to the destination using a portion of their powers. Meanwhile, the two nodes cooperatively use their residual powers on the jammed frequency band so as to engage the adversary to continue executing the jamming attack on the same band. Using on-off keying (OOK) and phase-shift-keying (PSK) as the modulation schemes at the victim and the helper node, respectively, we derive upper bounds on the probability of error of jointly decoding the information symbols of the two nodes, and subsequently derive analytical solutions to arrive at the power-splitting factor between the two frequency bands to minimize the error of both the nodes. We also present extensive simulation results for various signal-to-noise-ratio values and PSK constellations to showcase the efficacy of the proposed approach.

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