| 研究課題/領域番号 |
20K14742
|
|---|
| 研究機関 | 国立情報学研究所 |
|---|
研究代表者 |
劉 佳 国立情報学研究所, サイバーセキュリティ研究開発センター, 特任助教 (10813420)
|
|---|
| 研究期間 (年度) |
2020-04-01 – 2023-03-31
|
| キーワード | Internet of Things / Physical layer security / Performance evaluation / Energy harvesting / Game theory |
|---|
| 研究実績の概要 |
In this fiscal year, we continue to investigate the IoT systems performance modeling and the design of PLS-based secrecy transmission mechanisms. In particular, we have developed a novel theoretical framework to accurately evaluate the fundamental performance of IoT systems under the limited buffer constraint. By employing the SWIPT (simultaneous wireless information and power transfer) technology, we have proposed a Stackelberg game-based secure communication scheme for relaying systems. We have also applied the Stackelberg game approach and energy harvesting technique to other IoT-related systems, such as the Blockchain markets and cognitive radio networks. In addition, we have established the PLS-aware routing design framework with the help of performance modeling results and the Stackelberg game model, and the proposed routing algorithms have been theoretically proven to be stable, distributed, individually rational, and computationally efficient.
The research achievements include publications of 4 journal papers and 2 international conference papers. Moreover, another paper has been accepted by an international conference proceeding and will be published soon.
|
| 現在までの達成度 (区分) |
現在までの達成度 (区分)
1: 当初の計画以上に進展している
理由
The original plan for the second fiscal year is to study the tradeoff issues between transmission security and communication quality of service, as well as design physical layer security-based routing algorithms. In practical implementation, based on the network performance modeling results, we have transformed the tradeoff issues into mathematical optimization problems and developed efficient solving algorithms. By employing the Stackelberg game, we have designed incentive mechanisms for security enhancement, and by integrating performance metrics into single-hop weight we have developed lightweight route selection schemes based on Dijkstra's algorithm. We have demonstrated theoretically that the proposed routing schemes are stable, distributed, individually rational, and computationally efficient.
This research is expected to produce at least 4 conference papers and 3 journal papers in 3 years. Fortunately, only in the first two years, we have exceeded this target by producing 6 journal papers and 6 international conference papers, including 1 paper in IEEE Transaction on Wireless Communications, 2 papers in IEEE Transactions on Information Forensics and Security, and 2 papers in IEEE Internet of Things Journal. The reason for progressing more smoothly than the initial plan is due to our solid research basis accumulated from previous studies on wireless network performance modeling and wireless communications physical layer security, as well as the efforts devoted to promoting the research progress in this project.
|
| 今後の研究の推進方策 |
The follow-up research plan is as follows:
1. The physical layer security-based secure routing schemes aim to ensure the transmitted messages cannot be decoded when they are intercepted by the adversary, while the target of covert communications is to guarantee the transmitted data (i.e., the action of transmission) is difficult to be monitored by the adversary. The principles of physical layer security and covert communications are similar. Therefore, based on our research of PLS-aware secure routing, we plan to investigate the covert routing design.
2. The currently proposed routing schemes are based on the single-path mechanism, which is vulnerable to the key node failure problem. To enhance the resilience of our proposed secure routing, we plan to investigate the PLS-aware routing design based on the multi-path mechanism, and also explore the tradeoffs between the routing resilience and cost.
|
| 次年度使用額が生じた理由 |
Reason: The original plan was to use the budget to attend several prestigious international conferences, for example, our research papers were accepted by the 2021 IEEE Globecom in Madrid, the 2022 IEEE ICC in Seoul, etc. Also, we planned to use the budget to have academic exchanges in some prestigious laboratories (such as Prof. Taleb's lab at Aalto University, Finland), and invite some professors to our institute to give lectures and guidance. Unfortunately, since the epidemic is still severe worldwide, all such plans were canceled or suspended. Currently, due to the moderating trend of the global epidemic and entry policies, I expect to use the remaining budget to implement the original research plans in the next fiscal year.
Usage Plan: I plan to submit papers to some journals and conferences, so parts of the budget will be used for the conference registration and page charges. I also plan to attend some international and domestic conferences on-site, as well as visit some laboratories and invite some experts, so parts of the budget will cover the travel expenses. In addition, I plan to purchase some devices used for simulations and numerical computing.
|
