2023 Fiscal Year Final Research Report
Eavesdropping-Resistant Sparse Code Division Multiple Access System using a random number sequence based on dynamical systems
| Project/Area Number |
19K12156
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (C)
|
| Allocation Type | Multi-year Fund |
|---|
| Section | 一般 |
|---|
| Review Section |
Basic Section 61040:Soft computing-related
|
|---|
| Research Institution | Tokyo Institute of Technology (2021-2023)
Kyushu University (2019-2020) |
|---|
Principal Investigator |
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
篠原 克寿 一橋大学, 大学院経営管理研究科, 准教授 (50740429)
|
|---|
| Project Period (FY) |
2019-04-01 – 2024-03-31
|
| Keywords | 情報セキュリティ / カオス力学系 / エルゴード理論 / 物理層セキュリティ / 乱数生成 |
|---|
| Outline of Final Research Achievements |
Information security is an important issue for IoT devices using wireless communication installed for disaster prevention and monitoring purposes. The Golden Ratio Encoder (GRE) is a type of analog-to-digital converter that aims at compactness and low power consumption. In this study, we have derived an expression for the invariant measure of a dynamical system that describes the behavior of a GRE. Using the obtained invariant measure expression, we derived a theoretical expression for the mean-square quantization error, which is a basic performance indicator of GREs. In order to realize physical layer security, we focused on the coset coding and proposed a method to efficiently calculate the distribution of the amount of information leaked to third parties for a finite block length.
|
| Free Research Field |
通信工学
|
| Academic Significance and Societal Importance of the Research Achievements |
黄金比変換器(GRE)の利点は，精度の低い比較器を利用できるため低価格化と小型化が出来ることであり，低い駆動電圧で動作しても安定的に動作するので低消費電力化にも貢献する．GREを用いて乱数生成できれば，IoT機器のセキュリティ確保に貢献することが出来る．学術的には，GREの動作を記述する力学系はこれまで十分に解析されていなかった．GREは2次元の力学系で記述される．本研究で得られた不変測度に関する結果が一般の多次元の力学系の解析につながることが期待される．
|
