Journal Publications:

  • Carlene E-A Campbell, Kok-Keong Loo, Shafiullah Khan, Orhan Gemikonakli, and Dhananjay Singh, (2011), “Multi-channel Distributed Coordinated Function over Single Radio for Wireless Sensor Networks”, Sensors 2011, 11(1), 964-991; doi: 103390/s110100964, ISSN 1424-8220
  • Mapp, G., Thakker, D., and Gemikonakli, O., (2010), “Exploring Gate-Limited Analytical Models for High Performance Network Storage Servers”, Journal of Computer and System Sciences, PMECT/ICCCN 2009 Special Issue, J. Comput. System Sci. (2010), doi:10.1016/j.jcss.2010.08.002
  • Navare, J., and Gemikonakli, O., (2010), “Governance and Risk Management of Network and Information Security: The Role of Public Private Partnerships in Managing the Existing and Emerging Risks”, Lecture Notes in Computer Science (LNCS), ICGS3 2010 Special Issue.
  • Gemikonakli, O., Ever, E., and Kocyigit, A., "Approximate Solution for Two Stage Open Networks with Markov-modulated Queues Minimizing the State Space Explosion Problem", Journal of Computational and Applied Mathematics (to be published).
  • Chakka, R., Ever, E., Gemikonakli, O., (2006) "An Approach to Modelling Open Networks with Unreliable Servers and Finite Buffers", WSEAS Transactions on Computers, Vol 5, Issue 11, November 2006, ISSN 1109-2750, pp.2536-2543.
  • Eneh, A., and Gemikonakli, O.,"The Pre-emptive Protocol Design and Analysis: Hope for Secure Communication in Societies with Economic Deprivation", The International Journal of Technology, Knowledge and Society, Vol 1, Issue 5, 2005/2006, ISSN: 1832-3669, pp.35-42.
  • Brewster, B.D, Robertson, I.D, and Gemikonakli, O., (1993), "Design and realisation of a reduced-sized microstrip 3dB rat-race hybrid coupler". Microwave and Optical Technology Letters, Vol 6, No 14, pp. 789-90.
  • Aghvami, A.H., Gemikonakli, O., Kato, S. (1992), "Transmission of SDH signals through future satellite channels using high level modulation techniques". IEEE Journal of Selected Areas in Communications, JSAC, Vol 10, No 6, pages 1030-1036.
  • Gemikonakli, O., and Aghvami, A.H. (1989), "Impact of non-Gaussian noise on the performance of M-ary CPSK signalling transmitted through two-link non-linear channels". IEE Proc, Part I, No 5, pages 328-332.
  • Aghvami, A.H., Gemikonakli, O., (1989), "16-ary QAM transmission through a two-link bandlimited non-linear satellite channel using a RF linearizer". IEE Electronic Letters, August 1989, Vol 25, No 16, pages 1055-1057.
  • Gemikonakli, O., and Aghvami, A.H. (1989), "M-ary CPSK transmission through a two-link bandlimited non-linear satellite channel using an RF linearizer". IEE Proc, Vol 136, Pt I, No. 4, pages 291-297.
  • Gemikonakli, O., and Aghvami, A.H (1988), "Power spectral density of M-ary CPSK signals transmitted through non-linear channels using an RF lineariser". IEE Electronics Letters, Vol 24, No 18, pages 1167-1169.

Conference Papers:

  • Doddapaneni, K., Ever, E., Gemikonakli, O., Malavolta, I., Mostarda, L., Muccini, H., (2012), “Path Loss Effect on Energy Consumption in a WSN”, Computer Modelling and Simulation (UKSim), Cambridge, UK, 2012
  • K. Doddapaneni, E.Ever, O.Gemikonakli, L. Mostarda and A. Navarra, ''Effects of IDSs on the WSNs Lifetime: Evidence for the need of new approaches'', Third International Symposium on Mobile and Wireless Network Security (MWNS-12), In conjunction with 11th IEEE International Conference on Trust, Security and Privacy in Computing and Communications (IEEE TrustCom-12). Liverpool, UK, 25-27 June, 2012.
  • K. Doddapaneni, E. Ever, O. Gemikonakli, I. Malavolta, L. Mostarda, H. Muccini (2012), “A Model-Driven Engineering Framework for Architecting and Analysing Wireless Sensor Networks”, In ACM/IEEE proceedings of Third International Workshop on Software Engineering for Sensor Network Applications SESENA 2012 (conjunction with ACM/IEEE Intl. Conference on Software Engineering, ICSE) June 2-9, 2012, Zurich, Switzerland.
  • Y. Kirsal, O. Gemikonakli, E. Ever, and G. Mapp, (2012), “Performance Analysis of Handovers to Provide a Framework for Vertical Handover Policy Management in Heterogeneous Environments”, in IEEE Proceedings of 45thAnnual Simulation Symposium, (ANSS'12), March 26-20 2012, Florida.
  • Kirsal, Y., Ever, E., Gemikonakli, O., Mapp, G., (2011), “Modelling and Performability Analysis of WLANs as a Queuing Model with Channel/Access Point Failures and Reconfiguration”, European Modelling Symposium (EMS) 2011, Madrid.
  • Kirsal, Y., Ever, E., Gemikonakli, O., Mapp, G., (2011), “Critical Review of Analytical Modelling Approaches for Performability Evaluation of the Handover Phenomena in Mobile Communication Systems”, IEEE CIT (DSOC) 2011, Paphos, Cyprus.
  • Gemikonakli, E., Mapp, G., Gemikonakli, O., and Ever, E., (2011), “Traffic Modelling in WLANs and Cellular Networks”, IEEE CCSIE 2011, London, UK.
  • Rantisi, M., Maqousi, A., Mapp, G., and Gemikonakli, O., (2011), “The Development of a Dynamic Event-Based Routing in Wireless Sensor Networks for Monitoring Soil Moisture in the Middle East”, IEEE CCSIE 2011, London, UK.
  • Gemikonakli, E., Gemikonakli, O., Ever, E., and Mapp, G., (2011), “Impacts of Buffering of Voice Calls in Integrated Voice and Data Services”, In: Al-Dabass, David and Orsoni, Alessandra and Cant, Richard and Abraham, Ajith, (eds.) Computer Modelling and Simulation (UKSim), 2011 UkSim 13th International Conference [proceedings]. IEEE, pp. 507-512. ISBN 9781612847054
  • Kirsal, Y., Gemikonakli, E., Ever, E., Mapp, G., and Gemikonakli, O., (2010), “An Analytical Approach for Performance Analysis of Handoffs in the Next Generation Integrated Cellular Networks and WLANs”, PMECT 2010, Zurich, Switzerland.
  • Taherkhani, S., Ever, E., and Gemikonakli, O., (2010), “Implementation of Non-Pipelined and Pipelined Data Encryption Standard (DES) Using Xilinx Virtex-6 FPGA Technology”, IEEE CIT (DSOC) 2010, Bradford, UK
  • Mapp, G., Thakker, D., Gemikonakli, O., (2010), “Exploring a New Markov Chain Model for Multiqueue Systems” , UKSim-AMSS 2010, 12th International Conference on Computer Modelling and Simulation, Cambridge, UK, March 2010
  • Gemikonakli, O., Ever, E., and Gemikonakli, E., (2010), “Performance Modelling of Virtualised Servers”, UKSim-AMSS 2010, 12th International Conference on Computer Modelling and Simulation, Cambridge, UK, March 2010
  • Ever, E., Kirsal, Y., and Gemikonakli, O., “Performability Modelling of a Kerberos Server with Frequent Key Renewal under Pseudo-Secure Conditions for Increased Security”, CITT 2009, Dubai, December 2009, pp. 91-96
  • Ever, E., Kirsal, Y., and Gemikonakli, O., “Performability Modelling of Handoff in Wireless Cellular Networks and the Exact Solution of System Models with Service Rates Dependent on Numbers of Originating and Handoff Calls”, International Conference on Computational Intelligence, Modelling and Simulation (CSSim 2009), 7-9 September 2009, pp. 282-287.
  • Mapp, G., Thakker, D., Gemikonakli, O., (2009), “Exploring Gate-Limited Analytical Models for High Performance Network Storage Servers”,The 3rd IEEE International Workshop on Performance Modeling and Evaluation in Computer and Telecommunication Networks (PMECT2009), San Francisco, August 2009, pp. 1-5
  • Thakker, D., Mapp, G., Gemikonakli, O., (2009) “Modelling Mixed Access Patterns in Network-based Systems”, UKSim 2009, 10th International Conference on Computer Modelling and Simulation, Cambridge, UK pp. 514-519
  • Kirsal, Y., Gemikonakli, O., (2009), “Performability Modelling of Handoff in Wireless Cellular Networks with Channel Failures and Recovery”, UKSim 2009, 10th International Conference on Computer Modelling and Simulation, Cambridge, UK, pp. 544-547
  • Thakker, D., Mapp, G., Gemikonakli, O., (2008), “Balancing Streaming and Demand Accesses in a Network Based Storage Environment”, International Joint Conferences on Computer, Information, and Systems Sciences, and Engineering (CIS2E 08), December 2008.
  • Gemikonakli, O., Hadi Sanei, H., Enver Ever, E., Koçyiğit, A., (2008), “An Analytical Approach for Optimising the Number of Repairmen for Large Scale, Homogeneous, Multi-Server Systems”, EMSS 2008, Italy
  • Koçyiğit, A., Gemikonakli, O., and Ever, E., (2008), “Analytical Modelling of Large Scale Multi-server Systems with Deferred Repairs: A Reward Rate Approach”, EMS 2008, April 2008, Liverpool, UK
  • Kirsal, Y., and Gemikonakli, O., (2008), “Improving Kerberos Security through the Combined Use of the Timed Authentication Protocol and Frequent Key Renewal”, IEEE CIS 2008, London, UK, pp.153-158
  • Kocyigit, A., Gemikonakli, O., and Ever, E., "Cost Reduction in High Power Computing Using a Deferred Repair Strategy: A Simulation Study", EUROSIM/UKSim 2008. 10th International Conference on Computer Modelling and Simulation. Emmanuel College, Cambridge, England, April 2008.
  • Chakka, R., Ever, E., Gemikonakli, O., (2007), "Joint-State Modelling for Open Queuing Networks with Breakdowns, Repairs and Finite Buffers" IEEE MASCOTs, Istanbul, October 2007.
  • Gemikonakli, O., Sanei, H., and Ever, E., "Approximate Solution for the Performability of Markovian Queuing Networks with a Large Number of Servers", The Fifth Workshop on Signal Processing for Wireless Communication (SPWC), London, June 2007.
  • Kirsal Y., Gemikonakli, O., (2007), Poster Presentation titled "Development of Security Strategies Using Kerberos in Wireless Networks", Women in Computing Research London Hopper 2007, BCS London Offices, UK.
  • Kirsal Y., Gemikonakli, O., (2007), "Frequent Key Renewal under Pseudo-Secure Conditions for Increased Security in Kerberos Authentication and Its Impact on System Performability", 3rd International Conference on Global E-Security (ICGeS) 2007, University of East London (UeL), Docklands, UK.
  • Kirsal Y., Gemikonakli, O., (2006), "An Authentication Protocol to Address the Problem of the Trusted 3rd Party Authentication Protocols", CISSE 2006.
  • Ever, E., Gemikonakli, O., Chakka, R., (2006), "Performability Analysis of Highly Available Clusters with Break-downs and Deferred Repairs", In Proceedings of Fourth International Working Conference on Performance Modelling and Evaluation of Heterogeneous Networks, (HET-NETs'06), Ilkley, UK, September 2006, pp. P05/1-P05/9.
  • Ever, E. and Gemikonakli, O., (2006), "Mathematical Modelling for Performability Analysis of Homogeneous Multi-server Systems with Deferred Repairs", European Modelling Symposium 2006, London, September 2006, ISBN = 0-9516509-3-9/978-0-9516509-3-6, pp. 84-88.
  • Chakka, R., Ever, E., Gemikonakli, O., (2006) "An Approach to Modelling Open Networks with Unreliable Servers and Finite Buffers", WSEAS Transactions on Computers, Vol 5, Issue 11, November 2006, ISSN 1109-2750, pp.2536-2543.
  • Chakka, R., Ever, E., Gemikonakli, O., (2006) "Modelling Open Networks with Breakdowns, Repairs and Finite Buffers, Using an IPP Departure Process Model", Proceedings of the 10th WSEAS Int. Conf. on Computers, Athens, Greece, July 2006, pp. 33-38.
  • Eneh, A., and Gemikonakli, O., "The Pre-emptive Protocol Design and Analysis: Hope for Secure Communication in Societies with Economic Deprivation", The International Journal of Technology, Knowledge and Society: , Vol 1, Issue 5, 2005/2006, ISSN: 1832-3669.
  • Gemikonakli, O.,"Analysis of a phase-shift technique for inter-modulation cancellation proposed for 2-Carrier QPSK Systems", (2006), ICTTA, Damascus, April 2006.
  • Eneh, H.E., Gemikonakli, O., and Comley, R., (2006), "Secure Electronic Commerce Authentication Protocols In Economically Deprived Communities", The Fifth Security Conference 2006, Las Vegas, Nevada, April 2006, ISBN: 0-9772107-2-3.
  • Eneh, H.E., Gemikonakli, O., and Comley, R., (2006), "Towards the Modelling of Authentication Protocol Attacker", The Fifth Security Conference 2006, Las Vegas, Nevada, April 2006, ISBN: 0-9772107-2-3.
  • Ever, E., Gemikonakli, O., Chakka, R., (2006), "A Mathematical Model For Highly Available Clusters With One Head And Several Identical Computing Nodes". In Proceedings of the 9th International Conference on Computer Modelling and Simulation (UKSim 2006), pp.32-37.
  • Ever, E., Gemikonakli, O., Chakka, R., (2006), "A Mathematical Model for Performability of Beowulf Clusters", In Proceedings of 39th Annual Symposium on Network Simulation, pp.118-126.
  • Gemikonakli, O., Mapp, G., Thakker, D., Ever, E., "Modelling and Performability Analysis of Network Memory Servers", (2006), In Proceedings of 39th Annual Symposium on Network Simulation, pp.127-134.
  • Gemikonakli, O., (contribution to book), "Computer Networks: Operation and Application", (2005), Editor: Aboubaker Lasebae, Middlesex University Press, ISBN: 1 898253 706.
  • Ever, E., Gemikonakli, O., Chakka, R., and Do., T. V., (2005), "A Mathematical Model for Performability Evaluation of Heterogeneous Multiprocessor Systems with Reconfiguration and Rebooting delays", In Proceedings of ESM 2005, Porto, Portugal, October 2005.
  • Gemikonakli, O., Van Do, T., Chakka, R., and Ever, E. (2005)., "Numerical Solution to the Performability of a Multiprocessor System with Reconfiguration and Rebooting Delays", European Simulation and Modelling Multiconference, June 2005, pp. 766-770.
  • Eneh, H.A., and Gemikonakli, O. (2005), "An Overview of Analysis of Security Standards for Authentication in Distributed Systems", Proceedings of the 3rd International Workshop on Security in Information Systems (WOSIS-2005), May 2005, Miami, USA.
  • Eneh, H.A., and Gemikonakli, O. (2005), "Analysis of security protocols for authentication in distributed systems", Proceedings of Conference on Applied Computing IADIS'05, Volume 2, Algarve, Portugal, pp 301-305.
  • Eneh, H.A., and Gemikonakli, O. (2005), "The Analysis of Security Standards for Authentication in Distributed Systems", Abstracts, Technological Conference, Berkeley California, February 2005.
  • Kirsal Y., A. Eneh and O. Gemikonakli (2005), "A Solution to the Problem of Trusted Third Party for IEEE 802.11b Networks". PGNET2005, Liverpool UK, pp.333-339.
  • Van Do, T., Chakka, R., Gemikonakli, O., and Papp, D. (2004), "Level dependent band QBD processes: Steady state solution and applications", Second International Working Conference on Performance Modelling and Evaluation of Heterogeneous Networks (HET-NETs 2004), West Yorkshire, U.K., pp.WP8/1-WP8/6.
  • Chakka, R., Van Do, T., Le Xhat, T., and Gemikonakli, O. (2004) "A New Performance Model for Web Servers", 5th EUROSIM Congress on Modelling and Simulation, September 2004, Paris, France.
  • Eneh, H.A., Singh, H., and O. Gemikonakli (2004) "Three-way authentication framework for IEEE 802.11b networks", INC'04, July 2004, Plymouth, UK.
  • Gemikonakli, O. (2003) "A phase-shift technique for intermodulation cancellation", IEE Ninth International Conference on HF Radio Systems and Techniques, Bath, UK.
  • Chakka, R., Gemikonakli, O.& Basappa P. (2002), "Modelling multiserver systems with time or operation dependent breakdowns, alternate repair strategies, reconfiguration and rebooting delays", SPECTS 2002, San Diego, CA, USA.
  • Chakka, R., Gemikonakli, O. and Harrison P., (2000), Approaches to Modelling Open Networks with Bursty Arrivals, Eighth IFIP Workshop on Performance Modelling and Evaluation of ATM& IP Networks (IFIP ATM& IP 2000).

Languages spoken

Turkish

  • Network Design, Modelling and Simulation
  • Protocols and Implementation
  • Telecommunications
  • Signal Processing
  • Object Oriented Programming
  • Performance modelling of computer networks: To develop mathematical models to evaluate the performability of complex multi-server network systems.
  • Development of performability models for wireless communication systems.
  • Network security: The development of effective security mechanisms/models/frameworks and protocols for both traditional and wireless networks.
  • Performance modelling of wireless sensor networks.

Research Supervision:

Director of Studies

  • Agozie Eneh: Pre-emptive and Corrective Security System Model for Computer Networks
  • Enver Ever: Performability Modelling for Multiserver Systems
  • Yoney Kirsal: Development of Security Strategies Using Kerberos in Wireless Network Security
  • Yonal Kirsal: Modelling and Performability Evaluation of Mobile Communication Systems
  • Maher Rantisi: Analysis and development of transport protocols for WSNs
  • Arindam Gosh: Vehicular Area Networks
  • Krishna Doddapaneni: WSNs
  • Frederick Adero: Performance Evaluation of WSNs

Second Supervisor

  • Zhaohui Cheng: Cryptography and its application
  • Eser Gemikonakli: Traffic analysis of integrated wireless and mobile networks
  • Dhawal N. Thakker: High Performance Network Storage Servers
  • Esmat Mirzamany: QoS in Multi-Layer Proxy MIPv6