Privacy on hypothesis testing in smart grids
Privacy on hypothesis testing in smart grids
复制标题
智能电网假设检验的隐私
DOI：
10.1109/itwf.2015.7360791
复制
发表时间：
2015
期刊：
影响因子：
--
通讯作者：
T. Oechtering
中科院分区：
文献类型：
--
作者：
Zuxing Li;T. Oechtering
本文研究了智能电网中的隐私信息泄露问题。隐私风险被认为是由于基于能源供应商提供的能源供应的智能电表读数对消费者行为进行未经授权的二元假设测试造成的。另一种能源是由替代能源生产的。配备有储能装置的控制器管理能量流入以满足消费者的能源需求。为了抑制隐私风险，我们研究了在非授权假设检验中最小化最小II型错误概率的渐近指数衰减率的最优能量控制策略。我们的研究表明，对于最优控制策略，来自能源供应方的能量供应的基数不超过2。这一结果暗示了最优能量控制策略的一个简单目标。当对手获得额外的辅助信息时，将最优控制策略和隐私风险与仅将智能电表读数泄露给对手的情况进行比较。
In this paper, we study the problem of privacy information leakage in a smart grid. The privacy risk is assumed to be caused by an unauthorized binary hypothesis testing of the consumer's behaviour based on the smart meter readings of energy supplies from the energy provider. Another energy supplies are produced by an alternative energy source. A controller equipped with an energy storage device manages the energy inflows to satisfy the energy demand of the consumer. We study the optimal energy control strategy which minimizes the asymptotic exponential decay rate of the minimum Type II error probability in the unauthorized hypothesis testing to suppress the privacy risk. Our study shows that the cardinality of the energy supplies from the energy provider for the optimal control strategy is no more than two. This result implies a simple objective of the optimal energy control strategy. When additional side information is available for the adversary, the optimal control strategy and privacy risk are compared with the case of leaking smart meter readings to the adversary only.