| Title | Bidirectional Information Flow and the Roles of Privacy Masks in Cloud-Based Control |
| Publication Type | Conference Paper |
| Year of Publication | 2019 |
| Authors | Pedram, Ali Reza, Tanaka, Takashi, Hale, Matthew |
| Conference Name | 2019 IEEE Information Theory Workshop (ITW) |
| Date Published | aug |
| Keywords | bidirectional information flow, cloud computing, cloud-based control, cloud-based control architecture, Control Theory and Privacy, cyber physical systems, Cyber-physical systems, data privacy, downlink privacy masks, Gaussian noise, Gaussian process noise, Human Behavior, linear plant, Mutual information, noise levels, privacy, privacy loss, privacy-utility trade-off, pubcrawl, Resiliency, Scalability, uplink privacy masks |
| Abstract | We consider a cloud-based control architecture for a linear plant with Gaussian process noise, where the state of the plant contains a client's sensitive information. We assume that the cloud tries to estimate the state while executing a designated control algorithm. The mutual information between the client's actual state and the cloud's estimate is adopted as a measure of privacy loss. We discuss the necessity of uplink and downlink privacy masks. After observing that privacy is not necessarily a monotone function of the noise levels of privacy masks, we discuss the joint design procedure for uplink and downlink privacy masks. Finally, the trade-off between privacy and control performance is explored. |
| DOI | 10.1109/ITW44776.2019.8989371 |
| Citation Key | pedram_bidirectional_2019 |
Bidirectional Information Flow and the Roles of Privacy Masks in Cloud-Based Control