Ali Mohammad Afshin Hemmatyar

Assistant Professor
Department of Computer Engineering
Sharif University of Technology

Phone: 6616-6630 & 6616-5167
Room: 812






[  Educational Background ]

[ Professional Background ]

[ Research Interests ]

[ Graduate Students ]

[ Publications ]

[ Courses ]



Last Modified on: 03/14/2019 07:33

Educational Background

Professional Background

Research Interests

Graduate Students



  1. Hadi Talebi                            "Real-time Fusion of Asynchronous Data in Spread Sensor Networks", 2013.
  2. Maryam Tahani                     "Inferring Diffusion Networks in Dynamic Online Social Networks", 2016.
  3. Seyed Amir Ali Ghafourian   "Analysis and Performance Enhancement of MAC Layer Protocols for Vehicular Ad Hoc Networks", 2017.
  4. Amin Bazzazi                         "Hardware Trojan Detection Based on Logical Testing", 2017.


  1. Mohammad Taheri Tehrani   "Intelligent Demand Control in Smart Grids"
  2. Shiva Shamaei                        "Device-to-Device Communication Interference Control in Heterogeneous Networks Using Matching Theory"
  3. Monireh Allahgholi Ghasri    "Machine-to-Machine Routing in Heterogeneous Wireless Networks"
  4. Mohammad Amirkhani         "Modeling of Space-Time Data for Place Recommendation"
  5. Nafiseh Daemi
  6. Ehsan Khosravi





  1. Moosareza Boroumand                    "Survey on RFID Specifications and Requirements for Using in a License Plate", 2009.
  2. Mojgan Khaledi                                "Mobility Pattern Recognition in Mobile Ad-Hoc Networks", 2009.
  3. Mohammad Soroush Arzani             "Real Time Location Finding of Vehicles in Transport Systems", 2010.
  4. Taha Abachi                                      "An Intelligent Spectrum Management Framework in Cognitive Radio Networks", 2010.
  5. Yousef Ramezani                              "Improvement of Resource Management Algorithms in Cognitive Radio Networks", 2010.
  6. Mohsen Kazemi                                "An Optimum Routing Protocol in Cognitive Radio Networks", 2011.
  7. Amin Tahmasebi                               "Spectrum Sharing Optimization in Cognitive Radio Networks", 2011.
  8. Masoumeh Nazarieh                         "Evaluation of Granularity of Reconfigurable Architectures for Wireless Communication Applications", 2011.
  9. Soha Shabahang                                "Physical Fault Injection Methods for Evaluating Embedded Processors", 2011.
  10. Majid Ashuri                                     "Energy-Efficient Reliable Data Aggregation in Wireless Sensor Networks", 2011.
  11. Sajjad Safir                                        "Performance Improvement of Intrusion Detection Systems for Wireless Networks", 2012.
  12. Mohammad Elahi                              "Improvement in Quality of Service for Multi-hop Cognitive Radio Networks", 2012.
  13. Fatemeh Ghods                                  "A Multi-channel Scheme for Fast Data Collection in Wireless Sensor Networks", 2012.
  14. Zohreh Fath Fathabadi                      "Improving Privacy in Trust Management", 2012.
  15. Mahdieh Inanloo                               "Increasing the Life-time of Wireless Sensor Networks using Data Prediction", 2012.
  16. Fahimeh Javanmard
  17.                           "Improving Anomaly Detection Methods for Intrusion Detection in MANETs", 2012.
  18. Mahdi Zarrinpour                                           "Energy-aware Routing in Cognitive Wireless Sensor Networks", 2013.
  19. Iman Malool                                      "Improving Quality of Service in Multimedia Wireless Sensor Networks", 2013.
  20. Ahmad Forouzani                              "New Mobility Model for MANETs Based on Real Data of Human Mobility", 2013.
  21. Shahbaz Rezaei                                  "Multi-Path Routing in Cognitive Radio Networks", 2013.
  22. Sepideh Sfandeh                                "A Heuristic Method for Optimization of Node Placement in Wireless Sensor Networks", 2013.
  23. Vahid Rajbar Bafghi                         "An Approach for Security Improvement in VANETs", 2013.
  24. Maryam Saeidi                                  "Secure Data Collection in Wireless Multimedia Sensor Networks", 2013.
  25. Ali Sepehrian                                     "A Multi-Weight Based Clustering Algorithm for Mobile Wireless Sensor Networks", 2014.
  26. Ghassem Samimi                               "Efficient Data Collection in Wireless Sensor Networks", 2014.
  27. Seyedeh Roghaye Mousavi                "Congestion Control in Wireless Multimedia Sensor Networks", 2014.
  28. Manizhe Yadegari                             "Improvement of Routing Protocols in Delay-Tolerant Mobile Networks", 2014.
  29. Parisa Taherian                                 "A Combinatorial Method of Context-Based and Social-based Routing Protocols for Opportunistic Networks", 2014.
  30. Maryam Rezaei                                 "Improvement of Context-based Routing Approaches in Opportunistic Networks", 2014.
  31. Arash Sarabi                                     "A Method for Monitoring Software Defined Networks", 2014.
  32. Kaveh Kadkhoda                              "Improvement of Routing Protocols in VANETs", 2014.
  33. Danesh Zeynali                                  "QoS-Aware Routing with Energy Constraint in Wireless Multimedia Sensor Networks", 2015.
  34. Sajjad Rahmani                                "Improving the Performance of Transport Layer Protocols in Cognitive Radio Networks", 2015.
  35. Marayam Pourfarj                            "Improvement of Energy Consumption of Wireless Sensor Networks using Cluster-based Routing Protocols", 2015.
  36. Arman Ahmadi                                 "Improving Routing Protocols in VANETs", 2015.
  37. Farid Zarazvand                                "Congestion Control in VANETs", 2015.
  38. Nima Zand Karimi                            "Multi-Radio Solution for IoT", 2015.
  39. Ali Movaffagh                                  "Efficient Method for Data Aggregation for K-coverage in Wireless Sensor Networks", 2015
  40. Arash Mandomi                                "Reducing Channel Switching Time in IPTV Using Software Defined Networks", 2015.
  41. Shahrooz Aghili                                 "Distributed Publisher-Subscriber Pattern for Content-based Routing in Software Defined Networks", 2015.
  42. Navid Cheli Seril                               "Improving Reliability of Routing Protocols in Vehicular Ad Hoc Networks", 2016.
  43. Forouotan Fami                                "Analysis and Modeling of RFID Positioning Systems Accuracy", 2016.
  44. Solmaz Chamani                               "Efficient Artificial Intelligent-based Localization Algorithms for Wireless Sensor Networks", 2016.
  45. Davood Khoshyari                            "Improving GPSR Routing Protocol in VANETs", 2016.
  46. Roohollah Afshar Safavi                  "A CDN Architecture to be Used in SDN", 2016.
  47. Nafiseh Daemi                                  "Energy Efficient Software Defined Networks", 2016.
  48. Fatemeh Reszaei                               "Improving Security Issues in VANETs", 2016.
  49. Aniss Maghsoudlou                          "Application of Software-defined Networking in Enterprise WLAN", 2017.
  50. Hamid Mahmoudi                            "Network Monitoring in Software Defined Networks", 2017.
  51. Ehsan Heydari                                  "Traffic Measurement in Software Defined Networks using Host-Controller Application Co-design", 2017.
  52. Seyed Mohammad Reza Tajzad        "Network Security using Host-Controller Application Co-design in SDN", 2017.
  53. Sohinaz Farid                                    "Improving of Tree Routing Algorithm for Zigbee Protocol", 2017.
  54. Ehsan Khosravi                                 "Hybrid Approach for Spectrum Allocation in Cognitive Radio Networks", 2017.
  55. Bahram Mohammadi                        "Performance Enhancement of Named Data Networks for Supporting Node Mobility", 2017.
  56. Zahra Rashidi                                   "Energy Optimization in Roadside Unit for VANETs", 2017.
  57. Mahsa Ehsanpour                             "Cache Management in Named Data Networks", 2017.
  58. Seyedeh Zahra Amiri                        "An Energy Efficient Algorithm for WSN Using Coverage", 2017.
  59. Zahra Shafaeipour                            "Discovering Communities in Complex Networks by Distributed Edge Label Propagation Algorithm", 2017.
  60. Mojtaba Karimi                                "Reduction of Energy Consumption in Wireless Sensor Networks Using Genetic Algorithm", 2017.
  61. Amin Kavousi Rakati                       "Load Balancing in SDNs", 2018.
  62. Bahareh Riahi                                   "Distributed Auction Resource Provisioning in Cloud Computing", 2018.
  63. Mehran Fazaeli                                 "Placement in SDNs", 2018.
  64. Zahara Sharifzadeh Kermani            "Distributed Calculation of Centrality in Dynamic Complex Networks", 2018.
  65. Amirhhossein Mobayen                    "Predicting Traffics at Intersections and Make Traffic Lights Smart Using Graphs", 2018.
  66. Faegheh Ghofrani                             "Access Control System with Access Delegation in eHealth", 2018.
  67. Zahra Hesamnayer                            "Big Volume Event Correlation for Frequent Attack Pattern Mining", 2019.
  68. Morteza Hosseinioun                        "Detecting Community Structures in Patients with Peripheral Nervous System Disorders", 2019.
  69. Ali Pourghasemi Najafabadi             "Community Detection in Bipartite Networks", 2019.


  1. Aghil Jokar                                       "Improving Security of AODV Protocol for Detection and Removal of Cooperative Black Hole Attack in MANET"
  2. Mostafa Karimi Monjermooei          "A Secure Approach for Using Third Party Libraries in Mashup Applications"
  3. Milad Heydari                                  "Anomaly Based Intrusion Detection in Computer Networks using Generative Adversarial"
  4. Seyed MohammadReza Hosseini      "Neighbor Discovery in Smartphone-Based Opportunistic Networks"
  5. Masoumeh Soleymani                      "Joint Channel and Power Allocation in Energy Harvesting-aided D2D Wireless Communication Using Matching Theory"
  6. Sina Vaziri                                        "Using an Intelligent Method for Driving Style Recognition"
  7. Forouzan Farzinnejad
  8. Mohammad Hadinejad
  9. Navid Khezrian
  10. Javad Alipanah
  11. Arman Sanaei



 Journal Papers  

  1. A. M. Afshin Hemmatyar, and Forouhar Farzaneh, "Sensitivity Analysis of Feed-forward Linearized Amplifier System to Amplitude and Phase Mismatch, "Sharif Journal of Science & Technology, Vol. 38, pp.103-108, 2007. (In Persian)
  2. A. M. Afshin Hemmatyar and Forouhar Farzaneh, “Prediction of Inter-modulation Rejection Values for the First and Second Adjacent Channels in Feed–forward Microwave Amplifiers Using Closed-Form Expressions,” IET Microwave, Antenna & Propagation, Volume1, Issue 3, pp. 782-789, June 2007.
  3. A. M. Afshin Hemmatyar and Forouhar Farzaneh, “A New Analytical Approach in Modeling of Multi-loop Feed–forward Microwave Power Amplifiers,” International Journal of Electronics and Communications (AEÜ), Available online since August 2, 2007.
  4. Mohammad Rashtian, Omid Hashemipour and A.M. Afshin Hemmatyar, "A Simple Time Domain Approach to Noise Analysis of  Switched Capacitor Circuits," IEICE Electronics Express, Vol.7, No. 11, pp. 745-750, June 2010.

  5. Hojjatollah Esmaili, Yousef Ramezani, and A.M. Afshin Hemmatyar, "ATC Enhancement Using SSSC, a Case Study of Harmony vs. PSO,"Journal of Basic and Applied Scientific Research, Vol. 2, No. 4, pp. 3416-3425, April 2012.

  6. Mohammad Rashtian, A.M. Afshin Hemmatyar, and Omid Hashemipour, "A New Simple Method for analyzing of Thermal Noise in Switched Capacitor Filters," International Journal of Electronics, Available online since June 1, 2012 at

  7. Fatemeh Ghods, Hamed Yousefi, A. M. Afshin Hemmatyar, and Ali Movaghar, "MC-MLAS: Multi-Channel Minimum Latency Aggregation Scheduling in Wireless Sensor Networks," Computer Networks, Elsevier, Vol. 57, pp. 3812-3825, 2013.

  8. Hadi Talebi and A. M. Afshin Hemmatyar, "Asynchronous Track-to-Track Fusion by Direct Estimation of Time of Sample in Sensor Networks," IEEE Sensors Journal, Vol. 14, Issue 1, pp. 210-217, 2014.

  9. Sajjad Rahmani, A.M. Afshin Hemmatyar, "Performance Evaluation of Transport Layer in Cognitive Radio Ad-hoc Networks," International Journal of Computer Applications, Vol. 103, No. 5, pp. 8-11, 2014.

  10. Majid Ashuri, Hamed Yousefi, Javad Basiri, A. M. Afshin Hemmatyar, and Ali Movaghar, "PDC: Prediction-based Data-aware Clustering in Wireless Sensor Networks," Journal of Parallel and Distributed Computing, Available online since February 26, 2015.

  11. Amin Bazzazi, Mohammad Taghi MAnzuri Shalmani, and A. M. Afshin Hemmatyar, "Trojan Counteraction in Hardware: A Survey and New Taxonomy," Indian Journal of Science and Technology, Vol 9, No. 18, 2016.

  12. Maryam Tahani, A. M. Afshin Hemmatyar, Hamid R. Rabiee, and Maryam Ramezani, "Inferring Dynamic Diffusion Networks in Online Media," ACM Transactions on Knowledge Discovery from Data, Vol10, No. 4, Article 44, 2016.

  13. Seyed Amir Ali Ghafourian Ghahramani, A. M. Afshin Hemmatyar, and Kaveh Kavousi "A Network Model for Vehicular Ad Hoc Networks: An Introduction to the Obligatory Attachment Rule," IEEE Transactions of Network Science and Engineering. Vol. 3, No. 2, pp. 82-94, 2016.

  14. Seyed Amir Ali Ghafourian Ghahramani, and A. M. Afshin Hemmatyar, "A Graph Based Performance Analysis of The 802.11p MAC Protocol for Safety Communications in Highway Vehicular Ad Hoc Networks," The computer Journal, Oxford Press, Vol. 60, Issue 2, pp. 185-209, 2017.

  15. Shahbaz Rezaei, and A. M. Afshin Hemmatyar, "CMORC: Class-based Multipath On-demand Routing Protocol for Cognitive Radio Networks," Scientia Iranica, Vol. 24, Issue 6, pp 3317-3131, 2017.

  16. Shahbaz Rezaei, and A. M. Afshin Hemmatyar, "General Study of Jitter Mechanisms for Metric-based Wireless Routing Protocols," International Journal of Electronics and Communications (AEÜ), Vol. 79, pp. 132-140, 2017.

  17. Amin Bazzazi, Mohammad Taghi Manzuri Shalmani, and A. M. Afshin Hemmatyar, "Hardware Trojan Detection Based on Logical Testing," Journal of Electronic Testing, Vol.33, Issue 4, pp. 381, 395, 2017.

  18. Seyed Amir Ali Ghafourian Ghahramani, and A. M. Afshin Hemmatyar, "A Hybrid Approach to Analyze the Impact of Vehicular Traffic on Performance of 802.11p Protocol for Safety Communications in Vehicular Ad Hoc Networks: A Quantitative Analysis," Wireless Personal Communications, Vol. 97, Issue 3, pp. 4493-4528, 2017.

  19. Amin Bazzazi, Mohammad Taghi Manzuri Shalmani, and A. M. Afshin Hemmatyar, "Hardware Trojan detection and localization based on local detectors," Turkish Journal of Electrical Engineering & Computer Science, Vol. 26, pp. 1403-1416, 2018.

  20. Shiva Shamaei, Siavash Bayat, and A. M. Afshin Hemmatyar, “Interference Management in D2D-Enabled Heterogeneous Cellular Networks Using Matching Theory,” IEEE Transactions on Mobile Computing, 2018

 Conference Papers   

  1. A. M. Afshin Hemmatyar, and Forouhar Farzaneh, “Monte-Carlo Analysis for Estimation of Practical Inter-modulation Rejection Values in Feed–forward Microwave Amplifiers”, 13th Int. Conf. on Communications, Funchal, Madeira, Portugal, May 2006.
  2. A. M. Afshin Hemmatyar, and Forouhar Farzaneh, “Estimation of Practical Inter-modulation Rejection Values in a Multi-Loop Feed-forward Microwave Power Amplifier Using Monte-Carlo Method, 14th Int. Conf. on Communications, Penang, Malaysia, May 2007.
  3. MJ Khaledi, A. M. Afshin Hemmatyar, H. R. Rabiee, S. M. Mousavi, and MH. Khaledi, "Mobility Analyzer: A Framework for Analysis and Recognition of Mobility Traces in Mobile Ad-Hoc Networks", IEEE NTMS 2009, Egypt, December 2009.
  4. Taha Abachi, A. M. Afshin Hemmatyar, Mohammad Amin Fazli, and Mohammad Izadi, "Centralized Spectrum Sensing Using New Algorithmic Techniques," CRNet 2010, Bijing, China, August 2010.
  5. Majid Ashouri, Hamed Yousefi, A. M. Afshin Hemmatyar, and Ali Movaghar, "FOMA: Flexible Overlay Multi-path Data Aggregation in Wireless Sensor Networks," IEEE ICSE 2012, Turkey, July 2012.
  6. Mahdieh Inanloo, Majid Ashouri, Sanaz Gheibi, and A. M. Afshin Hemmatyar, "A New Approach for Multi-Source Data Prediction in Wireless Sensor Networks: Collaborative Filtering," Wireless Networking Symposium, China, October 2012.
  7. Seyed Amir Ali Ghafourian Ghahramani, and A. M. Afshin Hemmatyar, "A New Hybrid Model for Performance Evaluation of IEEE 802.11p Broadcast Mode in Vehicular Ad Hoc Networks: A Numerical Analysis," 2013 International Conference on Connected Vehicles & Expo., Las Vegas, Nevada, USA, December 2-6, 2013.
  8. Ghassem Samimi, Ehsan Saradar Torshizi, and A. M. Afshin Hemmatyar, "Wireless Sensor Network Lifetime Maximization Using Multiple Mobile Sink Nodes," Symposium on Computer Networks and Distributed Systems, Tehran, Iran, December 25-27, 2013.
  9. Sajedeh Harraz, and A. M. Afshin Hemmatyar, "Study and Comparison of Methods for Detection and Defense Against Worm-Hole Attack in Wireless Sensor Networks," Presented in 19th National Conference of Computer Society of Iran, Shahid Beheshti University, Tehran, Iran, March 2014. (In Persian)
  10. Sepeedieh Sfandeh, and A. M. Afshin Hemmatyar, "Optimum Placement of Wireless Sensor Network Nodes Using Combination of BigBang-BigCranch Algorithms," Presented in 19th National Conference of Computer Society of Iran, Shahid Beheshti University, Tehran, Iran, March 2014. (In Persian)
  11. Ahmad Foroozani, Mohammed Gharib, A. M. Afshin Hemmatyar, and Ali Movaghar, "A Novel Human Mobility Model for MANETs Based on Real Data," ICCCN WiMAN 2014, Shanghai, China, August 4-7, 2014.
  12. Zohre Fath Fathabadi, Sadegh Dorri Nogoorani,and A. M. Afshin Hemmatyar, "CR-SMTC: Collusion-Resistant Multi-Party Trust Computation," 11th International Conference of Information Security and Cryptology, Tehran University, Tehran, Iran, September 3-4, 2014.
  13. Mahsa Gharehkoolchian, A. M. Afshin Hemmatyar, and Mohammad Izadi, "Improving Security Issues in MANET AODV Routing Protocol," ADHOCNETS 2015, Italy, 2015.
  14. Shahbaz Rezaei, and A. M. Afshin Hemmatyar, "Impact of Jitter Mechanisms on Metric-based Wireless Routing Protocols," Presented in International Conference on Wireless Communications, Signal Processing and Networking (WiSPNET), 2016.
  15. Shahbaz Rezaei, and A. M. Afshin Hemmatyar, "Study of Uniform Jitter Mechanism for Metric-based Wireless Routing," Presented in First International Conference on New Research Achievements in Electrical and Computer Engineering (ICNRAECE), Amirkabir University of Technology, Tehran, Iran, May 13, 2016.
  16. Mahsa Ehsanpour, Siavash Bayat, and A. M. Afshin Hemmatyar, "On Efficient and Social-Aware Object Allocation in Named Data Networks Using Matching Theory," Presented in IEEE ISCC 2018.


       Spring 2019

  1. Wireless Networking

  2. Computer Measurement and Control

  3. Data Transmission

  4. Electronic Commerce


           Spring 1992 to Fall 2018

  1. Wireless Networking

  2. Wireless Communication

  3. Data Communications

  4. Data Transmission

  5. Signals and Systems

  6. Logic Design

  7. Computer Measurement and Control

  8. Fundamentals of Mechatronics

  9. Fundamentals of Electrical and Electronic Circuits

  10. Technical and Scientific Presentation

  11. Engineering Probability and Statistics

  12. Linear Active Circuits

  13. Linear Control Systems

  14. Electrical Circuits I

  15. Electrical Circuits II

  16. Electronics I

  17. Electronics II

  18. Electronic Circuits

  19. Digital Electronics

  20. Pulse Techniques

  21. The laboratory of above courses