
Sarah Koskie, Ph.D.
Associate Professor of Electrical & Computer Engineering
Associate Director, Transportation and Autonomous Systems Institute (TASI)
Contact Information:
Department of Electrical and Computer Engineering
Purdue School of Engineering and Technology
Indiana University — Purdue University Indianapolis
723 West Michigan Street, SL160
Indianapolis, IN 46202
Office Location: room 164G in the SL building
Office Phone: +1 317.278.9043
Office Fax: +1 317.274.4493
Email: skoskie@iupui.edu
Education:
Ph.D. (Interdisciplinary) Control Theory, Rutgers University, Piscataway, NJ (2003)
M.S. Mathematics,
Rutgers University, Piscataway, NJ (1999)
S.B. & S.M. Mechanical Engineering,
MIT,
Cambridge, MA (1983, 1986)
Research interests:
Teaching:
Fall 2022, Purdue School of Engineering and Technology, IUPUI:
Previous Semesters
Publications:
M.H. Plawecki, S. Koskie, A. Kosobud, M.D. Justiss, S. O'Connor,
"Alcohol intoxication progressively impairs drivers' capacity to
detect important environmental stimuli", in Pharmacology,
Biochemistry and Behavior, vol. 175, pp. 62–68, 2018. pdf
V. Radisavljevic, S. Koskie, "Suboptimal strategy for the
finitetime linearquadratic optimal control problem," IET
Control Theory and Applications, vol. 6, no. 10, pp. 1516–1521,
2012.
S. Koskie, C. Coumarbatch, Z. Gajic, "Exact SlowFast
Decomposition of the Singularly Perturbed Matrix Differential
Riccati Equation," Applied Mathematics and Computation,
vol. 216, no. 5, pp. 1401–1411, 2010.
S. Koskie and Z. Gajic, "Optimal SIRBased Power Control Strategies
for Wireless CDMA Networks", International Journal for
Information and Systems Sciences, vol. 4, no. 2,
pp. 204–218, 2007. pdf
S. Koskie and Z. Gajic, "SignalToInterferenceBased Power Control
for Wireless Networks: A Survey, 19922005," Dynamics of
Continuous, Discrete and Impulsive Systems B: Applications and
Algorithms, vol. 13, no. 2, pp. 187–220, 2006.
pdf
S. Koskie and Z. Gajic, "A Nash Game Algorithm for SIRBased Power
Control in 3G Wireless CDMA Networks," IEEE–ACM
Transactions on Networking October, 2005, vol. 13, No. 5,
pp. 1017–1026. pdf
S. Koskie, J. Zapf, "Acceleration of static Nash power control
algorithm using Newton iterations,"Dynamics of Continuous,
Discrete, and Impulsive Systems B: Applications and Algorithms,
2005, vol. 12S, pp. 685–690.
pdf
X. Li, S. Koskie, Z. Gajic, "Steffensen iterations for power
updates in CDMA wireless networks", Dynamics of Continuous
Discrete and Impulsive Systems B: Applications and Algorithms,
2005, vol. 12S, pp. 691–696.
pdf
S. Koskie, Z. Gajic, "SIRbased Power Control Algorithms for
Wireless CDMA Networks: An overview", Dynamics of Continuous
Discrete and Impulsive Systems B: Applications and Algorithms,
2003, vol. 10S, pp. 286–293. pdf
B. Dillon, S. Koskie, "Comparison in simulation of power control
algorithms for wireless systems", Dynamics of Continuous Discrete
and Impulsive Systems B: Applications and Algorithms, 2003,
vol. 10S, pp. 281–285.
S. Koskie, D. Skataric, and B. Petrovic, "Convergence Proof for
Recursive Solution of LinearQuadratic Nash Games for
QuasiSingularly Perturbed Systems," Dynamics of Continuous,
Discrete and Impulsive Systems, Series B: Applications and
Algorithms, (invited paper), vol. 9, no. 2, 2002,
pp. 317–333. pdf
Note: The brackets and parentheses missing
from the published version are contained in this pdf file which was
generated from the same LaTeX file submitted to the journal.
Conference Presentations:
N. Fricke, H. Wisdom, M. Justiss, S. Koskie, R. Dufour,
G. Widmann "Automated driving systems  methodological
considerations in human factors research", in Proceedings,
Vehicular Electronics and Safety (ICVES), 2010 IEEE International
Conference on, pp. 168–173, 2010.
A. Maina Ari, S. Koskie, Y. Chen, "Novel optimization strategy to
improve fuel economy for heavyduty trucks", in Proceedings,
Vehicular Electronics and Safety (ICVES), 2010 IEEE International
Conference on, pp. 122–127, 2010.
S. Koskie and Z. Gajic, "A Homotopy Algorithm for Solving the
LinearQuadratic Optimal Control Problem of Nash Differential
Games", Proceedings, The 31st CONGRESS HIPNEF 2008, Banja,
Serbia, October 15–17, 2008.
D. Skataric, and S. Koskie, "Nash Games for Power Control of
Wireless Systems", ("Nash igre za upravljanje snage u
bežičnim sistemima"), Proceedings of the 31st CONGRESS
HIPNEF 2008, Banja, Serbia, October 15–17, 2008.
V. Radisavljevic, D. Skataric, and S. Koskie, "LinearQuadratic
FullState Optimal Controller: Theoretical vs. Practical",
("Linearnokvadratni optimalni
kontroler: theorijski/praktični"), Proceedings of the 31st
CONGRESS HIPNEF 2008, Banja, Serbia, October 15–17, 2008.
V. Radisavljevic and S. Koskie, "Using the Steady State Optimal
Gain for the LinearQuadratic Finite Horizon Optimal Control
Problem", ("Korišćnje optimalnih pojačanja u
ustaljenom stanju u linearnokvadratnoj optimizaciji na
konačnom vremenskom intervalu"), Proceedings of the 31st
CONGRESS HIPNEF 2008, Banja, Serbia, October 15–17, 2008.
S. M. Rovnyak, S. Koskie, Y. Sheng, V. S. Rajput, and X. Hu,
"Laboratory Testing of a Distributed Generator Unintentional
Islanding Detection Scheme," Proceedings of the IEEE
PES General Meeting, Pittsburgh, July 20–24, 2008.
V. S. Rajput, S. M. Rovnyak, S. Koskie, and Y. Sheng, "A
MicrocontrollerBased Phasor Measurement System with CAN Bus
Communication," Proceedings of the IEEE PES General Meeting,
Pittsburgh, July 20–24, 2008.
Y. Sheng, S. M. Rovnyak, V.S. Rajput, and S. Koskie, "Testing an
IEEE 1547 Compliant Generator Controller for Response to Abnormal
Voltage," Proceedings of the IEEE PES General Meeting,
Pittsburgh, July 20–24, 2008.
A. Minaz, S. Koskie, Y. Chen. "Energy Management Strategies for
Fuel Cell Hybrid Electric Vehicles", Proceedings, International
Electric Vehicle Symposium, EVS 23, CDROM, Anaheim, California,
December 2–5, 2007.
Z. Gajic, S. Koskie, and C. Coumarbatch, "On the Singularly
Perturbed Matrix Differential Riccati Equation," CDCECC'05, 44th
IEEE Conference on Decision and Control and European Control
Conference ECC 2005, Seville, Spain, December 14–17, 2005.
pdf
S. Koskie, J. Zapf, "Acceleration of Static Nash Power Control
Algorithm using Newton Iterations," DCDIS 4th International
Conference on Engineering Applications and Computational
Algorithms Guelph, Ontario, Canada, July 27–29, 2005.
X. Li, S. Koskie, Z. Gajic, "Stefenssen Iterations for Power
Updates in CDMA Wireless Networks," DCDIS 4th International
Conference on Engineering Applications and Computational
Algorithms Guelph, Ontario, Canada, July 27–29, 2005.
Z. Gajic, D. Skataric, and S. Koskie, "Optimal SIRbased Power
Updates in Wireless CDMA Communication Systems," 43rd IEEE
Conference on Decision and Control, Paradise Island, The Bahamas,
December 14–17, 2004. pdf
Z. Gajic and S. Koskie, Workshop S–2 (1/2 day) "Power
Control in Wireless Communication Networks," presented Monday,
December 8 at the 42nd IEEE Conference on Decision and Control
(CDC 03), Maui, Hawaii, December 9–12, 2003.
Z. Gajic and S. Koskie, "Newton iteration acceleration of the
Nash game algorithm for power control in 3G wireless CDMA
networks," Performance and Control of NextGeneration
Communications Networks, Proceedings of SPIE , vol. 5244,
August, 2003, pp. 115–121. pdf
S. Koskie and Z. Gajic, "Optimal SIRBased Power Control in 3G
Wireless CDMA Networks," American Control Conference, Denver,
June 4–6, 2003. pdf
Z. Gajic and S. Koskie, "SIRBased Power Control Algorithms
Wireless Networks: An Overview," (invited talk) International
Conference on Dynamics of Continuous, Discrete and Impulsive
Systems, Guelph, Ontario, May 15–18, 2003.
S. Koskie, "Dynamic Nash Games for Power Control in Wireless
Networks," (invited talk) International Conference on Dynamics
of Continuous, Discrete and Impulsive Systems, Guelph, Ontario,
May 15–18, 2003.
S. Koskie, "Distributed SIRBased Power Control using Nash Game
Algorithms in 3G Wireless CDMA Networks," (invited talk) IEEE
Princeton Central Jersey Chapter, December, 2002.
S. Koskie, "A Nash Game Algorithm for SIRBased Power Control in 3G
Wireless CDMA Networks," (invited talk) WINLAB Industrial Advisory
Board Meeting, Rutgers University, October 9, 2002.
S. Koskie, D. Skataric, B. Petrovic, and Z. Gajic, "Convergence Proof for
Recursive Solution of LinearQuadratic Nash Games for QuasiSingularly
Perturbed Systems," (invited talk) International Conference on
Dynamics of Continuous, Discrete and Impulsive Systems, London,
Ontario, July 27–31, 2001.
Z. Gajic, S. Koskie, and C. Coumarbatch, "Exact SlowFast
Decomposition of the Singularly Perturbed Matrix Differential Riccati
Equation," International Conference on Dynamics of Continuous,
Discrete and Impulsive Systems, London, Ontario, July 27–31, 2001.
S. Koskie, S. C. Shah, and E. S. Russell, "Surface Temperature Control
in Plasma Deposition of Metal Matrix Composites," presented at IFAC
Workshop on Intelligent Manufacturing Systems, October 1, 1992.
pdf
S. Koskie and E. S. Russell, "Intelligent Plasma Deposition
Processing of Metal Matrix Composites," presented at Advanced Aerospace
Materials/Processes Conference and Exposition (AeroMat '92), Anaheim,
CA, May, 1992.
Edward S. Russell and Sarah Koskie, "Substrate temperature control in
ICPD manufacture of metalmatrix composites," presented at the
Symposium on Modelbased design of materials and processes –
Application of mechanics and material models to design and processing,
San Diego, CA, March 45, 1992, Proceedings of the Symposium,
pp. 147–161.
pdf
Last modified March 18, 2023.

