no code implementations • 16 Oct 2022 • Krishna Sandeep Ayyagari, Sherin Ann Abraham, Yiyun Yao, Shibani Ghosh, Francisco Flores-Espino, Adarsh Nagarajan, Nikolaos Gatsis
It is desirable to include tap selection of SVRs in optimal power flow (OPF) routines, a task that turns out to be challenging because the resultant OPF problem is nonconvex with added complexities stemming from accurate SVR modeling.
no code implementations • 28 Feb 2021 • Erick Schmidt, Junhwan Lee, Nikolaos Gatsis, David Akopian
The proposed method jointly estimates a dynamic solution for GPS timing and rejects behavior changes based on such sparse events.
no code implementations • 10 Jul 2018 • Aditie Garg, Mana Jalali, Vassilis Kekatos, Nikolaos Gatsis
Leveraging a linearized grid model and given anticipated data scenarios, inverter rules are jointly designed at the feeder level to minimize a convex combination of voltage deviations and ohmic losses via a linearly-constrained quadratic program.
no code implementations • 18 Oct 2016 • Ali Khalajmehrabadi, Nikolaos Gatsis, David Akopian
However, since WLAN has been initially designed for wireless networking and not positioning, the localization task based on WLAN signals has several challenges.
no code implementations • 18 Oct 2016 • Ali Khalajmehrabadi, Nikolaos Gatsis, David Akopian
This paper introduces novel schemes for indoor localization, outlier detection, and radio map interpolation using Wireless Local Area Networks (WLANs).
no code implementations • 18 Oct 2016 • Ali Khalajmehrabadi, Nikolaos Gatsis, Daniel Pack, David Akopian
Since the online measurements are subject to inordinate measurement readings, called outliers, the sparse recovery methods are modified in order to jointly estimate the outliers and user's position vector.