Electronic Engineering

Biographical Details:

Dr. Conor Brennan graduated from Trinity College Dublin in 1994 with an honours degree in Mathematics. He completed his PhD in 1998, under the supervision of Dr. Peter Cullen of the Department of Electrical and Electronic Engineering, Trinity College Dublin. From 1998-2002 he worked as a postdoctoral researcher with Dr. Cullen's radio propagation group. In that time he worked on several Government funded projects, in the area of propagation modelling and computational electromagnetics. In 1999 and 2002 he was awarded URSI Young Scientist awards. He is a member of the IEEE and has published widely, both in international journals and at peer-reviewed international conferences. He is a reviewer for the IEEE Transactions on Antennas and Propagation In 2003 he joined the of the School of Electronics, Dublin City University, where he is the joint leader of the RF modelling and simulation group

Research Interests:

Computation methods for electromagnetic wave scattering and propagation. High frequency (asymptotic) methods. Acceleration techniques for integral equations.

Selected Peer Reviewed Journals

• D. O'Rourke and C. Brennan. 2011. Practical Packet Combining for use with Cooperative and Non-Cooperative ARQ Schemes in Resource-Constrained Wireless Sensor Networks. Ad Hoc Networks,
• D. Trinh, C. Brennan and P. Bradley. 2011. Fast Fourier Transform based iterative method for electromagnetic scattering from 2D flat surfaces. Ieee Transactions On Antennas And Propagation,
• P. Bradley, C. Brennan and M. Condon. 2011. Efficient computation of electromagnetic wave scattering for inhomogeneous bodies. Iet Microwaves, Antennas & Propogation,
• P. Bradley, C. Brennan and M. Condon. 2011. Accelerated Source-sweep analysis using a reduced order model approach. Ieee Transactions On Antennas And Propagation, 59, 11, pp4360-4363.
• P. Bradley, C. Brennan and M. Condon. 2009. Efficient wideband electromagnetic scattering computation using Well-Conditioned Asymptotic Waveform Evaluation. Ieee Transactions On Antennas And Propagation, 57, 10, pp3274-3282.
• M. Mullen, C. Brennan and T. Downes. 2009. A hybridised forward backward method applied to Electromagnetic wave scattering problems. Ieee Transactions On Antennas And Propagation, 57, 6, pp1846-1850.
• van Dongen K. , Brennan C. and Wright W. D.. 2007. A reduced forward operator for electromagnetic wave scattering problems. Iet Science Measurement And Technology, 1, 1, pp57-62.
• M. Condon, R. Ivanov and C. Brennan. 2005. A causal model for linear RF systems developed from frequency-domain measured data. Ieee Transactions On Circuits And Systems, Part Ii: Express Briefs, 52, 8, pp457-460.
• Condon M., Dautbegovic E and Brennan C.. 2005. Efficient transient simulation of interconnect networks. Compel - The International Journal For Computation And, 24, , pp1230-1240.
• Dautbegovic E., Condon M. and Brennan C. 2005. An efficient nonlinear circuit simulation technique. Ieee Transactions On Microwave Theory And Techniques, 53, 2, pp548-555.
• Brennan C., Cullen P. J. and Condon M. 2004. A novel iterative solution to the three-dimensional electric field integral equation. Ieee Transactions On Antennas And Propagation, 52, , pp2781-2784.
• Condon M. and Brennan C. 2004. Improved method for fast frequency sweep analysis of electromagnetic scattering problems'. Iee Proceedings - Science, Measurement And Technology, 151, 6, pp488-491.
• Brennan C. and Cullen P. J. 2000. An MFIE based Tabulated Interaction Method for UHF terrain propagation problems. Ieee Transactions On Antennas And Propagation, 48, , pp1003-1005.
• Rossi L., Brennan C. and Cullen P. J. 2000. An implementation of a multilevel fast far-field algorithm for solving electric field integral equations. Iee Proceedings - Microwaves, Antennas And Propagation, 147, , pp19-24.
• Brennan C. and Cullen P. J. 1999. Multilevel tabulated interaction method applied to UHF propagation over irregular terrain. Ieee Transactions On Antennas And Propagation, 47, , pp1574-1578.
• Brennan C. and Cullen P. J. 1998. Application of the Fast Far-Field Approximation to the Computation of UHF pathloss over irregular terrain. Ieee Transactions On Antennas And Propagation, 46, , pp881-890.
• Brennan C. and Cullen P. J. 1998. Tabulated interaction method for UHF terrain propagation problems. Ieee Transactions On Antennas And Propagation, 46, , pp738-739.

Selected Chapters

• Arno Formella, Fernando Agelet, Jose Maria Rabanos, Conor Brennan and Peter Cullen. 2002. Deterministic modelling and acceleration techniques for ray-path searching in urban and suburban environments. COST Action 255: Radiowave Propagation Modelling for SatCom Services at Ku-Band and above. Final Report, pp2-31.
• Conor Brennan and Peter Cullen. 0. Deterministic modelling (subsection of Antennas and Propagation chapter). Wireless Flexible Personalised Communications: COST 259 European Co-operation in Mobile Radio Research, pp132-147.

Selected Non-peer Reviewed Journals

• Conor Brennan and Peter J. Cullen. 1997. The use of integral equations in mobile radio planning. Journal de Societe Belge des Ingenieurs de Telecommunications et d'electronique (SITEL), *, pp21-36.

• M. Mullen, C. Brennan T. P. Downes, Improved forward backward method applied to 2D scattering problems, 24th International Review of Progress in Applied Computational Electromagnetics, - , Niagara Falls, Canada
• M. Redzic, C. Brennan and N. E. O'Connor, Indoor localisation based on fusing WLAN and image data, 2011 International Conference on Indoor Positioning and Indoor Navigation , - , Guimaraes, Portugal
• M. Redzic, C. Brennan and N. E. O Connor, Dual-sensor fusion for indoor user localisation, ACM Multimedia 2011, - , Scottsdale, United States
• D. O¿Rourke and C. Brennan, A Practical Implementation of an Improved Packet Combining Scheme for Wireless Sensor Networks, Workshop on Cooperative Communications and Networking, IEEE International Conference on Communications, - , Beijing, China
• D. Trinh, C. Brennan, M. Mullen and P. Bradley, Accelerated Forward Backward Iterative Solution for Scattering From Randomly Rough Lossy Surfaces, International Conference on Electromagnetics in Advanced Applications (ICEAA11), 12-SEP-11 - 16-SEP-11, Torino, Italy
• D. Trinh, C. Brennan, M. Mullen and P. Bradley, Extension of fast far field algorithm to propagation over lossy dielectric terrain and buildings, International Conference on Electromagnetics in Advanced Applications (ICEAA11), 12-SEP-11 - 16-SEP-11, Torino, Italy
• M. Redzic, C. O'Conaire, N. O'Connor, and C. Brennan, Multimodal Identification of Journeys, First International Workshop on Interactive Multimodal Pattern Recognition in Embedded Systems, IMPRESS 2010,, 01-SEP-10 - 01-SEP-10, Bilbao, Spain
• M. Redzic, C. Brennan and N. O¿Connor, ¿A route identification algorithm for assisted living applications fusing WLAN, GPS and image matching data¿, In: Conor Brennan ed.Wireless as an Enabling Technology, Royal Irish Academy Research Colloquium , 21-APR-10 - 22-APR-10, Academy House Dublin, 88 - 91
• C. Brennan and J. Diskin, Accelerated propagation modelling for indoor UWB applications, In: Conor Brennan ed.Royal Irish Academy Colloquium: Wireless as an Enabling Technology, 21-APR-10 - 22-APR-10, Academy House, Dublin, 7 - 10
• C. David, C. Brennan, O. Ormond and M. Mullen, Parallelised EM wave propagation modelling for accurate network simulation, 9th Annual IT&T Conference, 22-OCT-09 - 23-OCT-09, Dublin Institute of Technology
• Tam N. Huynh and C. Brennan, Efficient UWB indoor localisation using a ray-tracing propagation tool, 9th IT&T Conference , 22-OCT-09 - 23-OCT-09, Dublin Institute of Technology
• Milan Redzic, Ciaran O¿Conaire, C. Brennan and Noel E O¿Connor, A hybrid method for indoor user localization , 4th European Conference on Smart Sensing and Context EuroSSC 2009, 16-SEP-09 - 18-SEP-09, Guildford, U.K.
• D. Bogusevschi, E. Degirmenci, C. Brennan and P. Landais, Design of 2D TeraHertz band-gap photonic waveguides using an accelerated integral equation approach, International Conference on Electromagnetics in Advanced Applications ICEAA09, 14-SEP-09 - 18-SEP-09, Torino, Italy, 481 - 484
• J. Diskin, A. Alomainy and C. Brennan,, An accelerated frequency-domain ray tracing simulator for Ultra-wideband communications, Progress in Electromagnetics Research Symposium (PIERS), 23-MAR-09 - 27-MAR-09, Beijing
• C. O¿Conaire, K. Fogarty, C. Brennan and N. O¿Connor, User localisation using visual sensing and RF signal strength, 6th ACM Conference on Embedded Networked Sensor Systems, 05-NOV-08 - 07-NOV-08, Raleigh, U.S.
• D. O¿Rourke and C. Brennan, On packet combining for wireless sensor networks, China Ireland International Conference on Information and Communications Technologies, 26-SEP-08 - 28-SEP-08, Beijing, China
• C. Brennan, B. Babu, M. Condon and M. Mullen, Rapidly convergent integral equation modelling of EM wave propagation through inhomogeneous media, Rapidly convergent integral equation modelling of EM wave propagation through inhomogeneous media, 26-SEP-08 - 28-SEP-08, Beijing, China
• M. Mullen, P. Bradley, C. Brennan and M. Condon, Efficient wideband computation of radar cross section for perfectly conducting objects, Royal Irish Academy Committee for Communications and Radio Science, Research Colloquium on Emerging trends in wireless communications, 24-APR-08 - 24-APR-08, Dublin, Ireland
• M. Mullen, C. Brennan T. P. Downes,, Improved forward backward method applied to 3D scattering problems, 7th International Conf. in Computation in Electromagnetics, 07-APR-08 - 10-APR-08, Brighton, United Kingdom
• Bradley P., Brennan C. and Condon M., Well-Conditioned Asymptotic Waveform Evaluation for Efficient Computation of Wave-Scattering from Perfectly Conducting Bodies, Asia Pacific Microwave Conference, 11-DEC-07 - 14-DEC-07, Bangkok, Thailand
• Bijilash B., Brennan C. and Condon M., Block Forward Backward method for Computation of Electromagnetic Wave scattering from a collection of inhomogeneous bodies, International Conference on Electromagnetics in Advanced Applications ICEAA07 , 17-SEP-07 - 21-SEP-07, Torino, Italy
• Bradley P., Brennan C., and Condon M., Arnoldi model order reduction for electromagnetic wave scattering computation, International Conference in Electromagnetics in Advanced Applications ICEAA07 , 17-SEP-07 - 21-SEP-07, Torino, Italy
• Mullen M., and Brennan C., Efficient Solution of 3D Scattering Problems for Multiple Source Locations using the Buffered Block Forward Backward Method, China-Ireland International Conference on Information and Communications Technologies CIICT07 , 28-AUG-07 - 29-AUG-07, Dublin, Ireland
• , , In: Gabriel Miro-Muntean Robert Sadleir Conor Brennan ed.China Ireland International Conference on Information and Communications Technologies, 28-AUG-07 - 29-AUG-07, Dublin Ireland
• Bradley P., Brennan C. and Condon M., Well-Conditioned Asymptotic Waveform Evaluation for model order reduction of volume integral equation based wave scattering computation, China-Ireland International Conference on Information and Communications Technologies CIICT07 , 28-AUG-07 - 29-AUG-07, Dublin, Ireland
• Brennan C. and Bogusevschi D., Buffered block forward backward method for computation of fields scattered from dielectric surfaces, URSI North America Radio Science Meeting, 22-JUL-07 - 26-JUL-07, Ottawa, Canada
• O¿Rourke D., Fedor S., Brennan C. and Collier M., Reception Region Characterisation using a 2.4GHz Direct Sequence Spread Spectrum Radio, The Fourth Workshop on Embedded Networked Sensors (EmNets 2007, 25-JUN-07 - 26-JUN-07, Cork, Ireland
• Brennan C., Incorporation of backscattering into FAFFA analysis of UHF wave propagation over irregular terrain, IEEE Vehicular Technology Conference VTC07 , 22-APR-07 - 25-APR-07, Dublin, Ireland
• Diskin J. and Brennan C., Accelerated ray-tracing for indoor Ultra wideband propagation modelling, IEEE Vehicular Technology Conference VTC07 , 22-APR-07 - 25-APR-07, Dublin, Ireland
• Brennan C. and Mullen M., Buffered block forward backward method with relaxation for 3D scattering problems, Progress in Electromagnetics Research Symposium (PIERS07), 26-MAR-07 - 30-MAR-07, Beijing, China
• Diskin J. and Brennan C., An efficient ray-tracing image removal algorithm for indoor 3D radiowave propagation modelling, 1st European Conference on Antennas and Propagation, EUCAP 2006, 06-NOV-06 - 10-NOV-06, Nice, France
• Condon M. , Bijilash B. and Brennan C., Computation of Electromagnetic Fields inside Three Dimensional Inhomogeneous Dielectrics Using a Buffered Block Forward Backward Algorithm , The 7th International Symposium on Antennas Propagation and EM Theory, 26-OCT-06 - 29-OCT-06, Guilin, China
• Brennan C. and Bogusevschi D., Buffered block forward backward (BBFB) method applied to EM wave scattering from homogeneous dielectric bodies, In: Gabriel Ciuprina ed.6th Scientific Computing in Electrical Engineering (SCEE06) Conference, Sinaia, Romania, September 17-22, 2006., 17-SEP-06 - 22-SEP-06, Sinai Romania
• Brennan C. and Bogusevschi D., Convergence analysis for buffered block forward-backward (BBFB) method applied to EFIE¿, IEEE AP-URSI Symposium, 09-JUL-06 - 14-JUL-06, Albuquerque, United States
• Bradley P., Brennan C. and Condon M., Multipoint Arnoldi model order reduction for electromagnetic wave scattering computation, 6th Intl. Conference on Computation in Electromagnetics, 05-APR-06 - 06-APR-06, Aachen, Germany.
• van Dongen K, Brennan C, Wright W. D., A reduced forward operator for electromagnetic scattering, 6th Intl. Conference in Computation in Electromagnetics, 05-APR-06 - 06-APR-06, Aachen, Germany.
• , , In: Conor Brennan ed.IEE Irish Signals and Systems Conference, 01-SEP-05 - 02-SEP-05, Dublin,Ireland
• Diskin J and Brennan C, A 3D ray tracing tool for indoor UWB signal propagation modelling, IEE Irish Signals and Systems Conference, 01-SEP-05 - 02-SEP-05, Dublin, Ireland
• van Dongen K, Brennan C, Wright W D., A reduced forward operator for acoustic scattering problems, IEE Irish Signals and Systems Conference, 01-SEP-05 - 02-SEP-05, Dublin, Ireland
• Dautbegovic E., Condon M., and Brennan C., An Efficient Wavelet-based Nonlinear Circuit Simulation Technique with Model Order Reduction, IEEE Postgraduate Colloquium, UMIST, 06-SEP-04 - 07-SEP-04, Manchester, United Kingdom
• Dautbegovic E., Condon M. and Brennan C., Hybridised PTD/AWE for modelling wide-band electromagnetic wave scattering, International Conference on Scientific Computing in Electrical Engineering (SCEE 2004), 05-SEP-04 - 09-SEP-04, Capo d'Orlando, Italy
• Condon M. , Ivanov R. and Brennan C., Application of model order reduction methods in an industrial environment. , ECMI 2004, 21-JUN-04 - 25-JUN-04, Eindhoven, the Netherlands
• Dautbegovic E., Condon M., and Brennan C. ,, An efficient nonlinear circuit simulation technique , RFIC Symposium 2004, 06-JUN-04 - 08-JUN-04, Dallas, United States
• Condon M. and Brennan C., An improved method for fast frequency-sweep analysis in electromagnetics, 5th IEE International Conference on Computation in Electromagnetics 2004, 19-APR-04 - 22-APR-04, Stratford on Avon United Kingdom
• Brennan C. and Cullen P. J., A novel iterative solution to the three dimensional electric field integral equation, International Conference in Electromagnetics in Advanced Applications ICEAA03, 08-SEP-03 - 12-SEP-03, Torino, Italy
• Brennan C., Cullen P. J. and Volakis J. , Efficient integral equation analysis of propagation in a simplified urban environment , International Conference in Electromagnetics in Advanced Applications ICEAA01, 10-SEP-01 - 14-SEP-01, Torino, Italy
• Brennan C., Cullen P. J. and Volakis J., Efficient integral equation analysis of propagation past a series of horizontal PEC screens, 2nd International Conference on Boundary integral equation methods, 12-SEP-00 - 16-SEP-00, Bath, United Kingdom
• Brennan C., Rossi L. and Cullen P. J., A method for producing a sparse discretised integral operator allowing a priori determination of the interaction terms, International Conference on Electromagnetics in Advanced Applications ICEAA99 , 13-SEP-99 - 17-SEP-99, Torino, Italy
• Rossi L., Brennan C. and Cullen P. J., Efficient integral equation based analysis of plane-wave scattering from infinite periodic perfectly conducting structures, International Conference on Electromagnetics in Advanced Applications ICEAA99, 13-SEP-99 - 17-SEP-99, Torino, Italy
• Brennan C. , Rossi L. and Cullen P. J. , Extension of efficient integral equation methods to propagation over dielectric terrain, URSI General Assembly 1999 , 13-AUG-99 - 21-AUG-99, Toronto, Canada
• Rossi L., Brennan C. and Cullen P. J. , An analytical approximation of the TIM look-up table , COST 259 meeting , 10-JAN-99 - 11-JAN-99, Thessaloniki, Greece
• Brennan C. and Cullen P. J. , An integral equation approach to long distance UHF terrain propagation , COST 259 meeting, 04-APR-98 - 05-APR-98, Bradford, United Kingdom
• Cullen P. J. and Brennan C., Recent advances in the numerical solution of integral equations applied to EM scattering from terrain , 14th Annual Review of Progress in Applied Computational Electromagnetics, 16-MAR-98 - 20-MAR-98, Naval Postgraduate School, Monterey, California, U.S.A.
• Cullen P. J. and Brennan C., Efficient techniques for the computation of UHF grazing incidence terrain scattering, International Conference on Electromagnetics in Advanced Applications ICEAA97, 15-SEP-97 - 19-SEP-97, Torino, Italy
• Brennan C. and Cullen P. J., Efficient techniques for the computation of UHF grazing incidence terrain scattering, COST 259 meeting, 01-SEP-97 - 02-SEP-97, Lisbon, Portugal
• Brennan C., Rossi L. and Cullen P. J., A high speed adaptive methodology for calculating UHF propagation loss over terrain, 8th IEEE int Symp. on Personal Indoor and Mobile Radio Communications, 01-SEP-97 - 04-SEP-97, Helsinki, Finland
• Brennan C. and Cullen P. J., On the tabulated interaction method and the fast far-field method applied to UHF propagation over terrain, COST 259 meeting , 01-MAY-97 - 02-MAY-97, Torino Italy
• Brennan C. and Cullen P. J., A method to speed up iterative solutions of terrain scattering problems, 10th International Conference on Antennas and Propagation ICAP 97, 01-APR-97 - 05-APR-97, Edinburgh, United Kingdom