- Electrical and Electronic Engineering - Research Publications
Electrical and Electronic Engineering - Research Publications
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ItemOptimal contract design for effort-averse sensorsFarokhi, F ; Shames, I ; Cantoni, M (Taylor & Francis, 2018-06-28)A central planner wishes to engage a collection of sensors to measure a quantity. Each sensor seeks to trade-off the effort it invests to obtain and report a measurement, against contracted reward. Assuming that measurement quality improves as a sensor increases the effort it invests, the problem of reward contract design is investigated. To this end, a game is formulated between the central planner and the sensors. Using this game, it is established that the central planner can enhance the quality of the estimate by rewarding each sensor based on the distance between the average of the received measurements and the measurement provided by the sensor. Optimal contracts are designed from the perspective of the budget required to achieve a specified level of error performance.
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ItemSecurity analysis of cyber-physical systems using H-2 normShames, I ; Farokhi, F ; Summers, TH (INST ENGINEERING TECHNOLOGY-IET, 2017-07-14)In this paper, we study the effect of attacks on networked systems and propose a new security index to analyze the impact of such attacks using H2 norms of attacks to target and monitoring outputs. In addition, we pose, and subsequently solve, optimisation problems for selecting inputs or outputs that point to attacks with maximum impact and least detectability. To demonstrate the applicability of the analysis methods proposed in this paper IEEE 9-bus and 50-generator 145- bus systems are considered as test cases.
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ItemPromoting Truthful Behavior in Participatory-Sensing MechanismsFarokhi, F ; Shames, I ; Cantoni, M (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2015-10)