On Secure Transmission Design: An Information Leakage Perspective
Yong Huang, Wei Wang, Biao He, Liang Sun, Tao Jiang

TL;DR
This paper introduces a low-complexity approximation for the average information leakage rate in secure wireless communications, enabling better analysis and optimal transmission design under security constraints.
Contribution
It proposes a novel approximation for information leakage rate that simplifies analysis and derives optimal transmission rates for different security objectives.
Findings
Throughput is an upward convex non-decreasing function of the security constraint.
Looser security constraints do not significantly increase throughput.
Average information leakage rate increases convexly with throughput constraints.
Abstract
Information leakage rate is an intuitive metric that reflects the level of security in a wireless communication system, however, there are few studies taking it into consideration. Existing work on information leakage rate has two major limitations due to the complicated expression for the leakage rate: 1) the analytical and numerical results give few insights into the trade-off between system throughput and information leakage rate; 2) and the corresponding optimal designs of transmission rates are not analytically tractable. To overcome such limitations and obtain an in-depth understanding of information leakage rate in secure wireless communications, we propose an approximation for the average information leakage rate in the fixed-rate transmission scheme. Different from the complicated expression for information leakage rate in the literature, our proposed approximation has a…
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Taxonomy
TopicsWireless Communication Security Techniques · Chaos-based Image/Signal Encryption · Cryptographic Implementations and Security
