Hatem BOUJEMAA

Associate Professor at Sup’Com

                       Tel. : (+216) 71 857000 Ext. 1025
                       Fax : (+216) 71 856 829
                       email : boujemaa.hatem@supcom.rnu.tn

                      Higher School of  Communications of Tunis

                      Cité Technologique des Communications

Route Raoued Km3.5,  El Ghazala 2083, Ariana, TUNISIA

 

Education | Teaching | Research | Publications | Patents | Projects | Students

 

EDUCATION

  • Engineering degree from  Ecole Polytechnique de Tunis (EPT)
  • Master and Ph. D. in Telecommunications from Télécom Paris Tech (ENST-Paris)
  • Post-Doctorate Stage at Signal and Systems Laboratory-CNRS, Supelec, France
  • HDR in Information Technologies and Communications from Carthage 7th November University

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TEACHING

 

2002-now : Sup’Com

  • Digital Communications
  • Information Theory, Source and Channel Coding
  • DS-CDMA, OFDM and MC-CDMA
  • UMTS and HSDPA Networks
  • Signal Processing
  • Probability and Stochastic Processes

 

2003-now :  Ecole Polytechnique de Tunis

  • Signals and Systems
  • Antenna Processing and Localization

2007-now :  Ecole Nationale des Ingénieurs de Tunis

  • Cooperative Communications
  • HARQ
  • Cross-Layer Design

 

2005 : CIFODECOM

  • Seminars on UMTS and HSPDA for the employee of Tunisie Telecom and Agence Nationale des Fréquences

 

2001 : Ecole Supérieure d’Ingénieurs en Informatique et Génie

                   des Télécommunications, Avon, France

  • Communication through band-limited linear filter channels
  • Space Time Block Coding for Wireless communications
  • Network optimization and planning

 

2000-2001 : Conservatoire National des Arts et Métiers de

                    Versailles, France

  • Digital Communications

 

2001 : Institut Supérieur d’Electronique de Paris, France

  • Space Time Wireless Communications

 

2000 :  Institut Universitaire de Technologies de Cachan, France

  • Spread Spectrum Systems

 

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RESEARCH

  • Cooperative Communications
  • Cross-Layer Design
  • Adaptive Modulation and Coding
  • Scheduling
  • Advanced Digital Receivers (DS-CDMA, OFDM and MC-CDMA)
  • Antenna Processing
  • HARQ Protocols
  •  Network Planning

 

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PUBLICATIONS

 

       JOURNAL PAPERS

[1] H. Boujemâa, "Delay Analysis of Cooperative Truncated HARQ with Opportunistic Relaying ", IEEE Transactions on Vehicular Technology, pp. 4795-4804,Vol. 58, No. 9, Nov. 2009. PDF

 

[2] H. Boujemâa, "Exact and Asymptotic Bit Error Probability of Cooperative DS-CDMA systems using Decode-and-Forward Relaying in the presence of multipath propagation",  IEEE Transactions on Wireless Communications, pp. 4464-4469, Vol. 8, no. 9, Sept. 2009. PDF

 

[3] H. Boujemâa, "Exact Symbol Error Probability of Cooperative Systems with Partial Relay Selection", in Press, European Transactions on Telecommunications, accepted Nov. 2009. PDF

 

[4] H. Boujemâa, I. Jaafar, R. Amara, M. Siala, "Joint azimuth, elevation and time of arrival estimation of diffuse sources", Annals of Telecommunications, 2008. PDF

 

[5] H. Boujemâa, M. W. El Bahri and M. Siala, "Performance of Hybrid ARQ schemes with packet and code combining for DS-CDMA downlink systems using orthogonal spreading sequences", European Transactions on Telecommunications letters, Vol.19, pp. 173-179, 2008.PDF

 

[6] H. Boujemâa and M. Siala, "Maximum a posteriori decorrelating receiver for MC-CDMA systems", European Transactions on Telecommunications letters, Vol. 17, pp. 151-155, 2006.PDF

[7] H. Boujemâa, M. Siala and M. H. Jday, "Robustness of the Decorrelating Discrete time Rake Receiver (DDRR) in the presence of dynamic propagation conditions", European Transactions on Telecommunications letters, Vol. 17, 125-130, 2006.PDF

[8] H. Boujemâa, "BER performance analysis of the discrete time and the continuous time Rake receivers for the UMTS downlink", IEEE Transactions on Wireless Communications, Vol. 5, pp. 900-909, April 2006. PDF

 

[9] H. Boujemâa, "Extension of COMET algorithm to multiple diffuse source localization in azimuth and elevation", European Transactions on Telecommunications, Vol. 16, pp. 557-566, 2005. PDF

 

[10] H. Boujemâa, R. Visoz and A. Berthet, "Iterative low-complexity receiver for the UMTS downlink", Annals of Telecommunications, Vol. 59, n° 5-6, pp. 696-712, May/June 2004. PDF

 

[11] H. Boujemâa and M. Siala, "Récepteurs en râteau pour les systèmes à étalement de spectre par séquences directes", Annals of Telecommunications, Vol. 56, n° 5-6, pp. 291-305, May/June 2001. PDF

 

[12] H. Boujemâa and M. Siala, “Optimisation of the interference cost generated by the Random Access Channel of the UMTS FDD system”, IEE Electronic Letters, vol. 37, n° 1, pp. 51-52, Janvier 2001. PDF

 

 

       CONFERENCE PAPERS

2009

[1] R. Bahloul, H. Boujemâa, M. Siala, “Cross Layer Strategies in Wireless Networks”,  IEEE Signals, Circuits and Systems Conference, Djerba, 7-9 November 2009. PDF

 

 

[2] S. Amara, H. Boujemâa, N. Hamdi, “SEP of Cooperative Systems using Amplify-and-Forward or Decode-and-Forward Relaying over Nakagami-m fading channels”, IEEE Signals, Circuits and Systems Conference, Djerba, 7-9 November 2009. PDF

 

 

[3] H. Boujemâa, “Optimal Transmission Policy of truncated Cooperative ARQ Protocols using Opportunistic Amplify-and-Forward Relaying”, IEEE Signals, Circuits and Systems Conference, Djerba, 7-9 November 2009. PDF

 

 

[4] T. Ben Jabeur, K. Abed Meraim, H. Boujemâa, “Blind channel shortening in MIMO-OFDM systems using single-block differential modulation”, IEEE International Wireless Communications and Mobile Computing Conference, Leipzig, 21-24 June 2009. PDF

 

 

[5] T. Ben Jabeur, K. Abed Meraim, H. Boujemâa, “Blind channel shortening in ZP-OFDM systems with controlled TIR quality”, EUSIPCO, Glasgow, August 2009. PDF

 

 

[6] S. Amara, H. Boujemâa, N. Hamdi, “SEP of cooperative systems using Amplify-and-Forward or Decode-and-Forward Relaying”, EUSIPCO, Glasgow, August 2009. PDF

 

 

[7] M. Ould El Aoun, H. Boujemâa, M. Siala, “Performance of MUSIC and COMET algorithms in the presence of scatterers in a 3D hemispheroid surrounding the source”, IEEE Vehicular Technology Conference Spring, Barcelona, 26-29 April 2009. PDF

 

 

[8] M. Ould El Aoun, M. Siala, H. Boujemâa, “Enhanced Soft-Handover for DS-CDMA systems using Complementary Error Correction Codes”, IEEE Vehicular Technology Conference Spring, Barcelona, 26-29 April 2009. PDF

 

2008

 

[9] H. Boujemâa, A. Chelly, M. Siala, “Performance of HARQ II and III over multipath fading channels”, IEEE Signals Circuits and Systems Conference, Hammamet, November 2008. PDF

 

[10] S. Amara, H. Boujemâa, M. Siala, “Planning Base Station location for the UMTS network”, IEEE Signals Circuits and Systems Conference, Hammamet, November 2008.

PDF

 

[11] I. Jaafar, H. Boujemâa, M. Siala, “Angle and time of arrival statistics for an hollow-disc and elliptical scattering model”, IEEE Signals Circuits and Systems Conference, Hammamet, November 2008. PDF

 

[12] T. Ben Jabeur, K. Abed Meraim, H. Boujemâa, “Blind channel shortening in OFDM system using nulltones and cyclic prefix”,  IEEE International Conference on Acoustics Speech and Signal Processing, Las Vegas, Nevada, April 2008. PDF

 

[13] A. Ayari, H. Boujemâa, M. Siala, “BER and complexity comparisons of the MPIC receiver and the linear chip equalizer”, IEEE Advanced International Conference on Telecommunications, Athens, June 2008. PDF

 

[14] T. Ben Jabeur, K. Abed Meraim, H. Boujemâa, “A new blind channel shortening for differential encoded OFDM systems”, IEEE International Workshop on Signal Processing Advances in Wireless Communications, Recife, Pernambuco, Brazil, July 2008. PDF

 

[15] M. W. El Bahri, H. Boujemâa, M. Siala, “Optimum puncturing and repeating patterns for HARQ schemes using turbo codes”, IEEE International Workshop on Signal processing and its application, Sharjah, March 2008. PDF

 

[16] H. Boujemâa, “BER performance of cooperative systems in the presence of multipath propagation”, IEEE International Symposium on Communications Control and Signal Processing, Malta, 12-14 March 2008. PDF

 

[17] I. Jaafar, H. Boujemâa, M. Siala, “Joint Azimuth, elevation and time of arrival estimation of 3D point sources”, IEEE International Symposium on Communications Control and Signal Processing, Malta, 12-14 March 2008. PDF

2007

[18] I. Trigui, M. Siala, S. Affes, A. Stéphenne, H. Boujemâa, “Optimum pulse shaping for OFDM/BFDM systems operating in time varying multipath channels”, IEEE Global Communications Conference, Washington DC, Novembre 2007. PDF

 

[19] I. Trigui, M. Siala, H. Boujemâa, “Optimized pulse shaping for OFDM multi-user communications over doubly dispersive channels”, IEEE International Symposium on Signal Processing and its Applications, Sharjah, Février 2007. PDF

2006

[20] A. Ben Salem, M. Siala, H. Boujemâa, “OFDM systems with Hexagonal Time-Frequency Lattices and well time-frequency localized prototype functions”, IEEE International Symposium on Image/Video Communications over fixed and mobile networks, Hammamet, 13-15 September 2006. PDF

 

[21] N. Debbabi, M. Siala, H. Boujemâa, “Enhanced channel estimation in OFDM/OQAM systems by prototype function optimization”, IEEE International Symposium on Image/Video Communications over fixed and mobile networks, Hammamet, 13-15 September 2006. PDF

 

[22] H. Boujemâa, S. Soussi and M. Siala, “Evaluating the throughput performance of ARQ and HARQ I over Nakagami fading channels”, IEEE International Conference on Information and Communications Technologies from Theory to Applications, Damascus,  24–28 April 2006. PDF

 

[23] H. Boujemâa, M. Jerad and M. Siala, “ Throughput evaluation of the Rake receiver and the linear chip equalizer in the presence of multi-code interference ”, IEEE International Symposium on Control, Communications and Signal Processing, Marrakech, 13-15 March 2006. PDF

2005

[24] H. Boujemâa, M. Ben Said and M. Siala, "Throughput performance of ARQ and HARQ I schemes over a two-states Markov channel model", IEEE International Conference on Electronics, Circuits and Systems, Gammarth, 11-14 December 2005. PDF

 

[25] M. W. El Bahri, F. Raouefi, H. Boujemâa and M. Siala, "Performance of HARQ I schemes using turbocodes", IEEE International Conference on Electronics, Circuits and Systems, Gammarth, 11-14 December 2005. PDF

 

[26] I. Jaafar, R. Amara, H. Boujemâa and M. Siala, "Joint Angle and Delay Estimation of point sources", IEEE International Conference on Electronics, Circuits and Systems, Gammarth, 11-14 December 2005. PDF

 

[27] I. Hadj Kacem, H. Boujemâa and M. Siala "On the performance of the decorrelating and conventional discrete time Rake receivers with improved channel estimation”, IEEE International Conference on Electronics, Circuits and Systems, Gammarth, 11-14 December 2005. PDF

 

[28] A. Ben Salem, M. Siala, H. Boujemâa, "Performance comparison of OFDM and OFDM/OQAM systems operating in highly dispersive radio-mobile channels", IEEE International Conference on Electronics, Circuits and Systems, Gammarth, 11-14 December 2005. PDF

 

[29] N. Debbabi, M. Siala and H. Boujemâa, "Optimization of OFDM waveform and signal-to-interference ratio for highly time and frequency dispersive channels", IEEE International Conference on Electronics, Circuits and Systems, Gammarth, 11-14 December 2005. PDF

 

[30] H. Boujemâa and M. Siala, " BER performance comparison of the continuous time, discrete time and decorrelating discrete time Rake receivers", IEEE Personal Indoor Mobile Radio Communications, Berlin, 11-14 September 2005. PDF

 

 

[31] M. W. El Bahri, H. Boujemâa and M. Siala, " Effects of noisy feedback on the performance of HARQ Schemes over multipath block fading channels for DS-SSS", IEEE Personal Indoor Mobile Radio Communications, Berlin, 11-14 September 2005. PDF

 

[32] M. W. El Bahri, H. Boujemâa and M. Siala, " Throughput evaluation of HARQ schemes with packet and code combining over multipath fading channels for DS-SSS", GRETSI, Louvain La Neuve, Belgium, 6-9 September 2005. PDF

 

[33] I. Jaafar, H. Boujemâa and M. Siala, "COMET and MUSIC performance comparison in the presence of a diffuse source", SETIT, Sousse, 27-31 March 2005. PDF

 

[34] M. W. El Bahri, H. Boujemâa and M. Siala, "Performance of Hybrid ARQ schemes over multipath block fading channels", SETIT, Sousse, 27-31 March 2005. PDF

2004

[35] I. Jaafar, H. Boujemâa and M. Siala, " Performance analysis of the MUSIC algorithm in the presence of local scattering", IEEE International Conference on Industrial Technology, pp. 1412-1416, Hammamet, 8-10 December 2004. PDF

 

[36] M. W. El Bahri, H. Boujemâa and M. Siala, "Performance comparison of type I, II and III HARQ schemes over AWGN channels", IEEE International Conference on Industrial Technology, pp 1417-1421, Hammamet, 8-10 December 2004. PDF

 

[37] H. Boujemâa, "Estimation of the angle of arrival and the angular spread of a diffuse source in azimuth and sight", IEEE International Symposium on Control, Communications and Signal Processing, pp. 279-282, Hammamet, March  2004. PDF

 

2002

 

[38] H. Boujemâa and M. Siala, "Loop Filter optimisation for delay lock loops", IEEE Personal Indoor Mobile Radio Communications, Vol. 3, pp. 1218 -1221, Lisboa, Portugal, September 2002. PDF

 

[39] H. Boujemâa and M. Siala, "Prediction of the received power for the UMTS closed loop power control", IEEE Personal Indoor Mobile Radio Communications, Vol. 4, pp. 1621-1625, Lisboa, Portugal, September 2002. PDF

 

[40] H. Boujemâa and S. Marcos, "Joint estimation of direction of arrival and angular spread using the knowledge of the power angle density", IEEE Personal Indoor Mobile Radio Communications, Vol. 4, pp. 1517-1521, Lisboa, Portugal, September 2002. PDF

 

[41] H. Boujemâa, M. Siala and R. Visoz, "Multipath diversity and power control", IEEE Vehicular Technology Conference Spring, Vol 2, pp. 876-879, Birmingham, USA, May 2002. PDF

 

[42] H. Boujemâa, R. Visoz and A. Berthet, "A Rake-DFSE equalizer for the UMTS downlink", IEEE Vehicular Technology Conference Spring, Vol 4, pp. 1626-1630, Birmingham, USA, May 2002. PDF

 

2001

 

[43] H. Boujemâa and M. Siala, "Minimum mean square error channel estimates for DS-SSS in the presence of ISI ", GRETSI, Toulouse, September 2001. PDF

 

[44] H. Boujemâa and M. Siala, "On a Maximum likelihood acquisition algorithm", IEEE International Conference on Communications, Vol 8, pp. 2510-2514, Helsinki, June 2001. PDF

 

[45] M. Siala and H. Boujemâa, " Optimisation of the interference cost generated by the Random Access Channel of the UMTS FDD system", IEEE International Conference on Acoustics Speech and Signal Processing, Vol 4, pp. 2677-2680, Salt Lake City, USA, May 2001. PDF

 

2000

 

[46] H. Boujemâa and M. Siala, "On the Rake receiver Performance", IEEE Vehicular Technology Conference Fall, Vol. 3, pp. 1483-1488, Boston, USA, September 2000. PDF

 

[47] H. Boujemâa and M. Siala, "Performance of coherent and noncoherent DLL's in AWGN channel", IEEE Personal Indoor Mobile Radio Communications, Vol. 2, pp. 147-150, London, September 2000. PDF

 

[48] H. Boujemâa and M. Siala, "On the performance of a discrete time rake", IEEE Personal Indoor Mobile Radio Communications, Vol. 2, pp. 949-953, London, September 2000. PDF

 

[49] H. Boujemâa and M. Siala, "Enhanced coherent delay tracking for Direct Sequence Spread Spectrum Systems", IEEE International Symposium on Spread Spectrum Techniques and Applications, Vol. 1, pp. 274-277, New Jersey, USA, September 2000. PDF

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PATENTS

 

2002 :  International Patent  WO 03/021805 A1

 

“Sub-optimal iterative receiver method and system

for high-bit-rate CDMA transmission system”, PDF

 

R. Visoz and H. Boujemâa, France Telecom R&D.

 

2001 :  French Patent FR 282932,

 

“Procédé et système de réception itératif sous optimal

pour les systèmes de transmission haut débit CDMA”, PDF

 

R. Visoz and H. Boujemâa, France Telecom R&D.

 

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PROJECTS

 

2009-2012 :  QNRF Project (Qatar Texas A&M University, Sup’Com)

 

“ QoS Optimization In Broadband Wireless Networks and Development of new value-added Mobile Systems and Services for e-advertising and e-Tourism ”

 

2006-2008 : CMCU French-Tunisian Project ( ENST-Paris, Sup’Com )

 

“ Improving the capacity of 4G systems ”

 

Team : I. Kammoun, K. Abed Meraim, M. Siala, J. R. Guisantes, H. Boujemâa

 

 

2001-2002 : European RNRT project LUTECE  ( LSS-CNRS, Thomson CSF, … )

 

“ Emergency Localization using Mobile Telephone ”

 

Team : S. Marcos, P. Morgan, H. Gazzah, H. Boujemâa, …

 

1998-2001 : European RNRT project AUBE (France Telecom R&D, EURECOM, …)

 

“ New Base Band UMTS  Architectures ”

 

Team :  D. Duponteil, M. Siala, D. Slock, J. Jourdain, H. Boujemâa , …

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STUDENTS

 

Ph. D. Students

2009-now :

“ Cooperative and Hybrid  Localization Techniques ”

Student : I. Ben Said

Advisor : H. Boujemâa

2007-now :

“ A contribution in the performance optimization of cooperative systems ”

Student : S. Amara

Advisor : H. Boujemâa

 

2007-now :

“Cooperative HARQ protocols”

Student : M. Ben Said

Advisor : H. Boujemâa

2005-2009 :

“ Channel shortening in OFDM systems ”

Student : T. Ben Jabeur

Advisors : K. Abed Meraim, H. Boujemâa, M. Jaidane, M. Bonnet

2003-2009 :

“ 3D diffuse sources localisation ”

Student : I. Jaafar

Advisors : H. Boujemâa, M. Siala

2003-2008 :

“ HARQ performance evaluation and optimization ”

Student : M. W. El Bahri

Advisors : H. Boujemâa, M. Siala

 

Master Students

2009-2010 :    “Rake receivers for Cooperative DS-CDMA systems”, Student : L.Gazzah.

2009-2010 :    “Scheduling for Cooperative systems using DF relaying”, Student : H.Hakim.

2009-2010 :    “Combined power control and adaptive modulation and coding for 3.5G mobile networks”, Student : A.Selmi.

2009-2010 :    “Enhancing hybrid ARQ protocol performance for 3G evolution”, Student : B.Kaddour.

2008-2009 :    “Performance evaluation of HARQ protocols for CDMA and MC-CDMA systems”, Student : I.Messadi

2007-2008 :    “Enhanced Soft Handover for DS-CDMA Systems using Complementary

                          Error Correction codes”, Student : M. Ould El Aoun

2006-2007 :    “Time and frequency synchronization of OFDM/BFDM systems operating in

                         time and frequency selective channels”, Student : I. Trigui

2005-2006 :    “ UMTS Base Station  Location Optimization ”, Student : S. Amara

 

2005-2006 :    “Enhanced channel estimation in OFDM/OQAM systems by prototype

                         function optimization ”, Student : N. Debbabi

2005-2006 :    “ Enhanced OFDM systems for 4G Networks ”, Student : A. Ben Salem

2004-2005 :    “ BER performance comparison of the Continuous Time and the Discrete      

                           Time Rake receivers ”, Student : I. Hadj Kacem.

2004-2005 :    “ HARQ performance analysis over non stationary channels modelled by a

                        Markov Chain ”, Student : M. Ben Said

2004-2005  :    “ Markov Chain models  of Rayleigh and Nakagami fading channels ”,

                         Student : S. Soussi

2004-2005 :    “ Enhanced iterative reception of oversampled linearized GMSK using the

                      Expectation Maximization Algorithm ”, Student : Sodki Ben Romdhane

2003-2005 :    “ BER performance comparison of the Linear Chip Equalizer and the Multipath

                         Interference Canceller for HSDPA Networks ”, Student : A. Ayari.

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Education | Teaching | Research | Publications | Patents | Projects | Students