Peer-reviewed Publications and other Presentations

2020

• Improving NAND Flash Performance with Read Heat Separation
  Roman Pletka, Nikolaos Papandreou, Radu Stoica, Haris Pozidis, Nikolas Ioannou, Tim Fisher, Aaron Fry, Kip Ingram, Andrew Walls
  Proceedings of the 2020 IEEE 28th International Symposium on Modeling, Analysis, and Simulation of Computer and Telecommunication Systems (MASCOTS)
  November 2020
  (abstract | pdf | bibtex)
  
  
• Achieving Latency and Reliability Targets with QLC in Enterprise Controllers
  Roman Pletka, Nikolaos Papandreou, Radu Stoica, Haralampos Pozidis, Nikolas Ioannou, Tim Fisher Aaron Fry, Kip Ingram, Andrew Walls
  Flash Memory Summit 2020
  November 2020
  (abstract | pdf | bibtex)
  
  
• Open Block Characterization and Read Voltage Calibration of 3D QLC NAND Flash
  Nikolaos Papandreou, Haralampos Pozidis, Nikolas Ioannou, Thomas Parnell, Roman Pletka, Milos Stanisavljevic, Radu Stoica, Sasa Tomic, Patrick Breen, Gary Tressler, Aaron Fry, Tim Fisher, Andrew Walls
  Proceedings of the 2020 IEEE International Reliability Physics Symposium (IRPS)
  April 2020
  (abstract | pdf | bibtex)
  
  

2019

• Reliability of 3D NAND Flash Memory with a Focus on Read Voltage Calibration from a System Aspect
  Nikolaos Papandreou, Nikolas Ioannou, Thomas Parnell, Roman Pletka, Milos Stanisavljevic, Radu Stoica, Sasa Tomic, Haralampos Pozidis
  Proceedings of the 19th Non-Volatile Memory Technology Symposium (NVMTS)
  October 2019
  (abstract | pdf | bibtex)
  
  
• Understanding the Design Trade-offs of Hybrid Flash Controllers
  Radu Stoica, Roman Pletka, Nikolas Ioannou, Nikolaos Papandreou, Sasa Tomic, Haralampos Pozidis
  Proceedings of the 2019 IEEE 27th International Symposium on Modeling, Analysis, and Simulation of Computer and Telecommunication Systems (MASCOTS)
  October 2019
  (abstract | pdf | bibtex)
  
  
• Towards Data-driven NAND Flash Controller Development
  Roman Pletka, Nikolas Ioannou, Nikolaos Papandreou, Radu Stoica, Sasa Tomic, Haralampos Pozidis
  Flash Memory Summit 2019, Santa Clara
  August 2019
  (abstract | pdf | bibtex)
  
  
• Characterization and Analysis of Bit Errors in 3D TLC NAND Flash Memory
  Nikolaos Papandreou, Haralampos Pozidis, Thomas Parnell, Nikolas Ioannou, Roman Pletka, Sasa Tomic, Patrick Breen, Gary Tressler, Aaron Fry, Timothy Fisher
  Proceedings of the IEEE International Reliability Physics Symposium (IRPS)
  April 2019
  (abstract | pdf | bibtex)
  
  

2018

• Management of Next-Generation NAND Flash to Achieve Enterprise-Level Endurance and Latency Targets
  Roman Pletka, Ioannis Koltsidas, Nikolas Ioannou, Saša Tomić, Nikolaos Papandreou, Thomas Parnell, Haralampos Pozidis, Aaron Fry, Tim Fisher
  ACM Transaction on Storage, Volume 14, Number 4
  December 2018
  (abstract | pdf | bibtex)
  
  
• Designing Enterprise Controllers with QLC 3D NAND
  Roman Pletka, Radu Stoica, Nikolas Ioannou, Sasa Tomic, Nikolaos Papandreou, Haralampos Pozidis
  Flash Memory Summit 2018, Santa Clara
  August 2018
  (abstract | pdf | bibtex)
  
  
• Enabling 3D-TLC NAND Flash in Enterprise Storage Systems
  Roman Pletka, Nikolas Ioannou, Nikolaos Papandreou, Thomas Parnell and Saša Tomić
  ERCIM News
  April 2018
  (abstract | pdf | bibtex)
  
  

2017

• Improving Endurance in 3D-NAND Flash
  Roman Pletka, Ioannis Koltsidas, Nikolas Ioannou, Sasa Tomic, Nikolaos Papandreou, Thomas Parnell, Haralampos Pozidis, Aaron Fry, Tim Fisher
  Flash Memory Summit 2017, Santa Clara
  August 2017
  (abstract | pdf | bibtex)
  
  

2016

• Health Binning: Maximizing the Performance and the Endurance of Consumer-Level NAND Flash
  [best paper]
  Roman Pletka, Sasa Tomic
  Proceedings of the 9th ACM International on Systems and Storage (SYSTOR), Haifa
  June 2016
  (abstract | pdf | bibtex)
  
  

2015

• SALSA: Flash-optimized Software-define Storage
  Nikolas Ioannou, Ioannis Koltsidas, Roman Pletka, Sasa Tomic, Thomas Weigold
  Flash Memory Summit 2015, Santa Clara
  August 2015
  (abstract | pdf | bibtex)
  
  
• Holistic Flash Management for Next-Generation All-Flash Arrays
  Roman Pletka, Nikolas Ioannou, Sasa Tomic, Ioannis Koltsidas, Aaron Fry, Tim Fisher
  Flash Memory Summit 2015, Santa Clara
  August 2015
  (abstract | pdf | bibtex)
  
  
• SALSA: Treating the Weaknesses of Low-cost Flash in Software
  Nikolas Ioannou, Ioannis Koltsidas, Roman Pletka, Sasa Tomic, Radu Stoica, Thomas Weigold, Evangelos Eleftheriou
  Non-Volatile Memories Workshop (NVMW), San Diego
  March 2015
  (abstract | pdf | bibtex)
  
  

2014

• PSS: A Prototype Storage Subsystem based on PCM
  Ioannis Koltsidas, Peter Mueller, Roman Pletka, Thomas Weigold, Evangelos Eleftheriou, Maria Varsamou, Athina Ntalla, Elina Bougioukou, Aspasia Palli, Theodore Antonakopoulos
  Non-Volatile Memories Workshop (NVMW), San Diego
  March 2014
  (abstract | pdf | bibtex)
  
  

2013

• Unfied High-Performance I/O: One Stack to Rule Them All
  Animesh Trivedi, Patrick Stuedi, Bernard Metzler, Roman Pletka, Blake G. Fitch, Thomas R. Gross
  14th Workshop on Hot Topics in Operating Systems (HOTOS), Santa Ana
  May 2013
  (abstract | pdf | bibtex)
  
  

2011

• A Comparison of Secure Multi-tenancy Architectures for Filesystem Storage Clouds
  Anil Kurmus, Moitrayee Gupta, Roman Pletka, Christian Cachin, Robert Haas
  ACM/IFIP/USENIX 12th International Middleware Conference
  December 2011
  (abstract | pdf | bibtex)
  
  
• Subsystem and System-level Implications of PCM
  Robert Haas, Xiao-Yu Hu, Ioannis Koltsidas, Roman Pletka
  European\Phase Change and Ovonics Symposium (E\PCOS), Zurich
  November 2011
  (abstract | pdf | bibtex)
  
  
• Sub-block Wear-leveling for NAND Flash
  Roman Pletka, Xiao-Yu Hu, Ilias Iliadis, Roy Cideciyan, Theodore Antonakopoulos
  Non-Volatile Memories Workshop (NVMW), San Diego
  March 2011
  (abstract | pdf | bibtex)
  
  

2009

• Write Amplification Analysis in Flash-Based Solid State Drives
  Xiao-Yu Hu, Evangelos Eleftheriou, Robert Haas, Ilias Iliadis, Roman Pletka
  Proceedings of the Israeli Experimental Systems Conference (SYSTOR), Haifa, Israel
  March 2009
  (abstract | pdf | bibtex)
  
  

2007

• Cryptographic Security for a High-Performance Distributed File System
  Roman Pletka, Christian Cachin
  Proceedings of the 24th IEEE Conference on Mass Storage Systems and Technologies (MSST), San Diego
  September 2007
  (abstract | pdf | bibtex)
  
  

2004

• Bringing Efficient Advanced Queries to Distributed Hash Tables
  Daniel Bauer, Paul Hurley, Roman Pletka, Marcel Waldvogel
  Proceedings of the 29th Annual IEEE Conference on Local Computer Networks (LCN), Tampa
  November 2004
  (abstract | pdf | bibtex)
  
  

2003

• Towards High-performance Active Networking
  Lukas Ruf, Roman Pletka, Pascal Erni, Patrick Droz, Bernhard Plattner
  Annual International Working Conference on Active Networks (IWAN), Kyoto
  December 2003
  (abstract | pdf | bibtex)
  
  
• The Role of Network Processors in Active Networks
  Andreas Kind, Roman Pletka, Marcel Waldvogel
  Fifth Annual International Working Conference on Active Networks (IWAN), Kyoto
  December 2003
  (abstract | pdf | bibtex)
  
  
• Closed-Loop Congestion Control for Mixed Responsive and Non-Responsive Traffic
  Roman Pletka, Andreas Kind, Marcel Waldvogel, Soenke Mannal
  Proceedings of the Conference on Global Communications (GLOBECOM), San Francisco
  December 2003
  (abstract | pdf | bibtex)
  
  
• PURPLE: Predictive Active Queue Management Utilizing Congestion Information
  Roman Pletka, Marcel Waldvogel, Soenke Mannal
  Proceedings of the 28th Annual IEEE Conference on Local Computer Networks (LCN), Bonn
  October 2003
  (abstract | pdf | bibtex)
  
  
• Creating Advanced Functions on Network Processors: Experience and Perspectives
  Robert Haas, Clark Jeffries, Lukas Kencl, Andreas Kind, Bernard Metzler, Roman Pletka, Marcel Waldvogel, Laurent Frélechoux, Patrick Droz
  IEEE Networks
  July 2003
  (abstract | pdf | bibtex)
  
  

2002

• Adaptive End-to-End Quality-of-Service Guarantees in IP Networks using an Active Networking Approach
  Roman Pletka, Burkhard Stiller
  Opensig 2002, Lexington
  October 2002
  (abstract | pdf | bibtex)
  
  
• The Potential of Just-In-Time Compilation in Active Networks based on Network Processors
  Andreas Kind, Roman Pletka, Burkhard Stiller
  The Fifth IEEE Conference on Open Architectures and Network Programming (OPENARCH 02), New York
  June 2002
  (abstract | pdf | bibtex)
  
  
• Bandwidth Allocation for Non-Responsive Flows with Active Queue Management
  Proceedings of Int. Zurich Seminar on Broadband Communications (IZS), Zurich
  February 2002
  (abstract | pdf | bibtex)
  
  

2001

• A Buffer-Management Scheme for Bandwidth and Delay Differentiation using a Virtual Scheduler
  Roman Pletka, Patrick Droz, Burkhard Stiller
  Proceedings of the International Conference on Networking (ICN), Colmar
  June 2001
  (abstract | pdf | bibtex)