A Countermeasure for Traffic Analysis Attacks: Covert Communications With Digital Modulation

被引：8

作者：

Topal, Ozan Alp ^{[1
]}

Kurt, Gunes Karabulut ^{[1
]}

机构：

[1] Istanbul Tech Univ, Fac Elect & Elect Engn, TR-34467 Istanbul, Turkey

来源：

IEEE WIRELESS COMMUNICATIONS LETTERS | 2021年 / 10卷 / 02期

关键词：

Digital modulation; Throughput; Wireless communication; Wireless sensor networks; Communication system security; Delays; Covert communication; delay-constrained networks; digital modulation; physical layer security; traffic analysis;

D O I：

10.1109/LWC.2020.3034664

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

In this letter, we provide a physical layer supported defense mechanism against traffic analysis attacks by exploring the covert communication capability of digital modulation schemes. We analyze and compare the performances of M-PSK, M-QAM, M-ASK and M-APSK modulations in terms of the probability of detection by a warden and the maximum achievable throughput at the receiver. We obtain a lower bound for the covert transmission probability at Willie, which can be utilized as a covertness limit to maximize the throughput. Numerical studies highlight the tightness of the presented lower bound and show the maximum achievable throughput limits without being detected by a traffic analysis attacker.

引用

页码：441 / 445

页数：5

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