Honorary Chair

Mohammad S. Obaidat
KASIT, Univ. of Jordan, Jordan

General Chair

Malamati Louta
Univ. of Western Macedonia, Greece

Program Co-Chairs

George Karetsos
Univ. of Thessaly, Greece

Steven Latrè
Univ. of Antwerp, Belgium

Tutorial Chair

Maria Calzarossa
Univ. of Pavia, Italy

Publication Chair

Alexandros Boulogeorgos,
Univ. of Western Macedonia, Greece

Publicity Chair

John Vardakas
Iquadrat, Spain


Antonio Bueno
Univ. of Girona, Spain

2021 International Symposium on Performance Evaluation of Computer and Telecommunication Systems

July 19-22, 2021, George Mason Univ., Fairfax, Virginia, USA

Due to the COVID-19 pandemic, and for the health and safety of our attendees, the 2021 International Symposium on Performance of Computer and Telecommunication Systems (SPECTS) is a virtual event.

The goal of this annual conference is to provide a forum for professionals and researchers to discuss and disseminate the most promising contributions on performance evaluation of computer and telecommunication systems. Papers describing results of theoretic and/or practical significance are solicited. Experimental, modeling, analysis, and simulation studies as well as testbed deployment, field trials and experiences gained are all in the scope of the conference. Work presenting novel performance evaluation methods or providing insights on design and runtime tradeoffs are particularly encouraged.

SPECTS 2021 will be co-located with the Annual Modeling and Simulation Conference (ANNSIM). ANNSIM 2021 is a new annual conference after merging SpringSim and SummerSim into a single conference starting in 2021 by The Society for Modeling and Simulation International (SCS).

Sponsor SCS logo The Society for Modeling and Simulation International www.scs.org

Technical Sponsor ComSoc logo www.comsoc.org

Best paper special issue Sponsor Computers logo mdpi.com/journal/computers

Papers and tutorials are solicited in (but not limited to) the following subjects of interest:

Networking Technologies and Telecommunication Systems

  • Future Internet and next Generation Networking
  • 5G & Beyond
  • Hyperdense networks
  • Massive MIMO
  • mm Wave communications
  • Multiple access, multiplexing, modulation and coding techniques
  • Cooperative communications and networking
  • Cognitive radio and networking
  • Autonomic Networks
  • Software Defined Networking
  • Network Function Virtualization
  • Cloud Radio Access Networks
  • Radio over Fiber
  • Flexible optical networks
  • Optical-Wireless communication and systems
  • Visible light communications
  • Internet of Things and enabling technologies
  • Machine to Machine systems
  • Device to Device communications
  • Cyber Physical Systems
  • Wireless ad-hoc Networks
  • Wireless Sensor Networks
  • Delay Tolerant Networks
  • Opportunistic Networks
  • Vehicular ad-hoc networks / connected vehicles
  • Nanonetworks
  • Satellite and Space communications and networking
  • Network design, optimization, management and performance evaluation
  • Traffic engineering, network reliability, Quality of Service / Experience

Computer Systems

  • Parallel and Distributed Computing
  • Service Oriented Architectures and Microservices
  • Cloud and Edge Computing
  • High Performance Computing
  • Distributed and Mobile Middleware
  • Computer Architectures
  • Microprocessors
  • Multi-core processors
  • Memory systems
  • High performance I/O
  • Big Data Analytics, Artificial Intelligence Applications and Machine Learning
  • Software Engineering, Performance, Evaluation and Testing
  • Verification and Validation
  • Programming Languages
  • Parallel Algorithms
  • Data Storage Systems
  • Fault tolerance, signal processing, and coding techniques

Tools & Methodologies

  • Modeling and Analysis
  • Performance Optimization, Bounds and Models
  • Stochastic Models
  • Queuing Systems and Networks
  • Neural Networks and Fuzzy Logic Applications
  • Integrated Modeling and Measurement
  • Mathematical Aspects and Integrated Design of Performance
  • Verification and Validation
  • On-Line Performance Adaptation and Tuning
  • Parallel and Distributed Simulation
  • Case studies, Testbed deployments, field trials and experiences
  • Scalability Studies

Special Tracks and Areas of Interest

  • Artificial Intelligence (AI) for communications and computing
  • Internet of Things technologies and applications
  • Performance aspects and trends of Socially Aware systems
  • Orchestration strategies for mobile edge computing systems
  • Security and Performance in Computer and Telecommunication Systems
  • Aspects and Trends in Software Engineering and Evaluation

Call for Papers

You can download the PDF format Call for Papers (PDF, 73 KiB)


Paper Submission

Please submit your complete papers electronically to https://www.softconf.com/sim/SPECTS21/

Instructions for authors

Current templates supplied by IEEE must be used. Submissions should not exceed 8 two-column, 8.5×11" pages (including figures, tables, and references) in 10 point fonts. Please include 5-10 keywords, complete postal and e-mail address, and fax and phone numbers of the corresponding author. If you have difficulties with electronic submission, please contact Technical Program Co-Chairs or the Local Arrangement Chair.

Proposals for tutorials (max 2 hours) should be sent to the Tutorial Chair. Tutorial abstracts along with keynote speeches' abstracts will be included in the proceedings of the conference.

Best Paper Awards

All accepted papers will be evaluated for a best paper award based on originality and technical contribution by an external commission.

Call for Tutorial Proposals

SPECTS 2021 is soliciting proposals for tutorials (max 2 hours) to be held in conjunction with the conference. Tutorials should address established as well as new emerging research topics and practical applications in the area of performance evaluation of computer and telecommunication systems. Tutorials should present a comprehensive overview of the state of the art and outline open research and technical challenges.

A tutorial proposal should contain the following information:

The extended abstracts of the tutorials will be included in the conference proceedings. Tutorial proposals should be submitted for review in a single PDF file — not exceeding five pages — electronically to https://www.softconf.com/sim/SPECTS21/

Important Dates for Tutorials

Tutorial Chair

Please address questions to the Tutorial Chair.


Register here

SPECTS 2021 Registration Fees

Category Regular Late (After July 1, 2021) Regular Late (After July 1, 2021)
Member Rate Member Rate Non Member Rate Non Member Rate
Full Paper Registration Registration Fee Registration Fee Registration Fee Registration Fee
Regular $400 USD $500 USD $485 USD $585 USD
Student $200 USD $300 USD $230 USD $330 USD
Retiree $185 USD $185 USD $215 USD $215 USD
Invited Speaker & Committee Member $185 USD $185 USD $215 USD $215 USD
Listener Registration Registration Fee Registration Fee Registration Fee Registration Fee
Regular $150 USD $200 USD $235 USD $285 USD
Student $120 USD $170 USD $150 USD $200 USD
Retiree $20 USD $20 USD $20 USD $20 USD

SCS Conference Fee FAQ

Student Verification Form

Retiree Verification Form

Visa Invitation Request Form


Industry 5.0 Digital Twins: the Call for Cloud Continuum Infrastructures


The efficient exploitation of the cloud continuum (industrial cloud, edge cloud, 5G/6G base stations, fog nodes) is a key factor for future Industry4.0 (and beyond) applications, e.g., for manufacturing line control and reconfiguration, where QoS requirements on latency and scalability are crucial. The keynote aims at offering an overview of the state-of-the-art architectures and technologies in the field, with a specific focus on how to efficiently design and implement hybrid distributed digital twins over cloud continuum virtualized resources. Related and industrial-grade use cases from ongoing international projects will be depicted to practically ground the proposed architectural solutions.

Short Bio

Picture of Paolo Bellavista

Paolo Bellavista, received MSc and PhD degrees in computer science engineering from the University of Bologna, Italy, where he is now a full professor of distributed and mobile systems. His research activities span from pervasive wireless computing to online big data processing under quality constraints, from edge cloud computing to middleware for Industry 4.0 applications. He serves on several Editorial Boards, including IEEE COMST (Associate EiC), ACM CSUR, and Elsevier JNCA and PMC. He is the scientific coordinator of the H2020 BigData project IoTwins - https://www.iotwins.eu/

Conference Program

NOTE: All times are EDT (UTC -4)

Monday, July 19th

Time (EDT)EventPresenterTitle
08:00 Welcome Day 1 Malamati Louta
08:15 Keynote Paolo Bellavista Industry 5.0 Digital Twins: the Call for Cloud Continuum Infrastructures
09:20 Tutorial 1 Panagiotis Dimantoulakis Non-Orthogonal Multiple Access (NOMA) for Future Wireless Networks

SESSION 1: Computer and Telecommunication Systems Security

Time (EDT)EventPresenterTitle
11:30 Session 1, Paper 1 Matthew Lanoue, James Michael and Chad Bollmann Spoofed Networks: Exploitation of GNSS Security Vulnerability in 4G and 5G Mobile Networks
11:50 Session 1, Paper 2 Hua Yi Lin, Meng-Yen Hsieh and Kuan-Ching Li A Multi-level Security Key Management Protocol Based on Dynamic M-tree Structures for Internet of Vehicles
12:10 Session 1, Paper 3 Jay Thom, Tapadhir Das, Bibek Shrestha, Shamik Sengupta and Engin Arslan Casting a Wide Net: An Internet of Things Testbed for Cybersecurity Education and Research

Tuesday, July 20th

Time (EDT)EventPresenterTitle
08:00 Welcome Day 2 Malamati Louta
08:15 Tutorial 2 Arijit Roy Enabling Sensors-as-a-Servicefor Internet of Things
09:20 Tutorial 3 Ashu Sharma Malware Analysis and Detection

SESSION 2: Tools and Methodologies

Time (EDT)EventPresenterTitle
11:30 Session 2, Paper 1 Bannya Chanda and Shikharesh Majumdar A Technique for Extracting User Specified Information from Streaming Data
11:50 Session 2, Paper 2 Ioannis Z. Koukoutsidis A Fluid Reservoir Model for the Age of Information through Energy-Harvesting Transmitters
12:10 Session 2, Paper 3 Georgios L. Stavrinides and Helen Karatza Orchestrating Bag-of-Tasks Applications with Dynamically Spawned Tasks in a Distributed Environment

SESSION 3: Networking Technologies

Time (EDT)EventPresenterTitle
12:30 Session 3, Paper 1 Peristera Baziana Optical Control Connectivity and Access Technique Study for a Software-Defined Intra-Rack Data Center Network
12:50 Session 3, Paper 2 Konstantinos Dararas, Angelos Michalas, Emmanouil Skondras and Nikolaos Asimopoulos Enhanced mobility management scheme for next generation 5G vehicular environments
13:10 Closing Malamati Louta

SPECTS Steering Committee

Technical Program Committee