KISA ÖZGEÇMİŞ

     

 


 

Adı ve Soyadı: Mehmet Şafak

Diploma

Uzmanlık Dalı/Bölümü

Yıl

Orta Doğu Teknik Üniversitesi

Elektrik ve Elektronik Mühendisliği Bölümü

1970

Universite Catholique de Louvain, Belçika

Antenler/telekomünikasyon

1972 (master)  1975 (doktora)

 

Yurt Dışı İş Deneyimi

 

Eğitim Kuruluşunun Adı

 

Eğitimin Konusu

 

Başlangıç ve Bitiş Tarihi

Eindhoven Teknoloji Üniversitesi, Hollanda

Antenler (doktora sonrası araştırma)

Temmuz 1975-

Temmuz 1976

SHAPE Teknik Merkezi (NATO NC3A), Lahey, Hollanda

Uydu haberleşme sistemleri konusunda bilim adamı

Ekim 1984-Ekim 1992

Doğu Akdeniz Üniversitesi, KKTC

Eğitim,  Araştırma, Yönetim

Şubat 1993-Eylül 1996

Halen ilgili olduğu bilim ve uzmanlık dalları:

Gezgin iletişim sistemleri, Askeri Uydu Haberleşme Sistemleri, OFDM, uzay-zaman kodlaması, adaptif antenler, enerji hatları üzerinden haberleşme, antenler

 

İdari ve Bilimsel Deneyim:

 

1998-            Çeşitli kuruluşlarda danışmanlık

1999-2004  TÜBİTAK Elektrik Elektronik ve Enformatik Araştırma Gurubu (EEEAG) Yürütme     Kurulu Üyesi

1999-2008     Hacettepe Üniversitesi Mühendislik Fakültesi Akademik Yükseltme Komisyonu Üyesi

1999-2008     Hacettepe Üniversitesi Mühendislik Fakültesi Vakfı Yönetim Kurulu Üyesi

 2003-2008  Hacettepe Üniversitesi Mühendislik Fakültesi Vakfı’na ait Intersonda isimli şirketin Yönetim Kurulu Üyesi

1999-2002      COST 262  Spread Spectrum Systems and Techniques in Wireless and Wired Communications  başlıklı projenin Türkiye temsilcisi

1999-2008    Hacettepe Üniversitesi, Bilimsel Araştırma Projeleri Komisyonu Üyesi

2003-2007   COST 289 Spectrum and Power Efficient Broadband Communications başlıklı projenin başkanı

2002-2010    Bilişim Enstitüsü, Sayısal İletişim Sistemleri ve Bilgisayar Ağları Anabilim Dalı Başkanı

 

YAYINLAR LİSTESİ

 

SCI TARAFINDAN TARANAN DERGİLERDE YAYINLANAN MAKALELER

1.        M.Karaman-Çolakoğlu and M. Şafak, On the MIMO Channel Capacity Predicted by Kronecker and Müller Models, Special Issue: Spectrum and Power Efficient Broadband Communications, Wireless Personal Communications (COST Action 289), vol.47, no.1, pp. 91-100, 2008.

2.        M. Şafak, A. Svensson, H. Rohling and A. Wittneben, editorial, Special Issue:  Spectrum and Power Efficient Broadband Communications,  Wireless Personal Communications (COST Action 289), Wireless Personal Communications, vol.47, no.1, pp. 1-2, 2008.

3.        M.Abdel-Hafez and M.Şafak, Performance analysis of digital cellular radio systems in Nakagami fading and correlated shadowing environment, IEEE Trans. Vehicular Technology, vol.48, no.5, pp.1381-1391, September 1999.

4.        M.Abdel-Hafez and M.Şafak, Throughput of slotted ALOHA in Nakagami fading and correlated shadowing environment, Electronics Letters, vol.33, no.12, pp.1024-1025, 5 June 1997.

5.        M.Abdel-Hafez and M.Şafak, Simplified analysis of equal gain combining in Nakagami fading channels, Electronics Letters, vol.33, no.23, pp.1926-1927, 6 November 1997.

6.        M. Şafak, Limitations on the reflector antenna gain by random surface errors, pointing errors and the angle-of-arrival jitter, IEEE Trans. Antennas Propagation, vol.AP-38, no.1, Jan.1990, pp.117-121.

7.        M. Şafak, Radiation pattern of an offset hyperbolic reflector, IEEE Trans. Antennas Propagation, vol. AP-37, Feb.1989, no.2, pp.251-253.

8.        E. Yazgan and M. Şafak, Comparison of UTD and UAT in axially symmetric reflectors, IEEE Trans. Antennas Propagation, vol. AP-35, no.1, January 1987, pp.113-116.

9.        M. Şafak, Complete radiation pattern of a focus fed offset paraboloidal reflector, IEEE Trans. Antennas Propagation, vol.AP-33, no.5, May 1985, pp.566-570.

10.    M. Şafak and E. Yazgan, Polarization losses in reflector antennas, IEE Trans. Antennas  Propagation, vol.AP-33, no.8, August 1985, pp.899-903.

11.    M. Şafak, Forward radiation from axially symmetric reflector antennas, IEEE Trans. Antennas Propagation, vol.AP-32, Sept, 1984, no.9, pp.893-901.

12.    M. Şafak and P.P. Delogne, Optimization of aperture antenna distributions for interference reduction, Proc. IEE, August 1978, vol.125, no.8, pp.717-723.

13.    M. Şafak, Calculation of radiation patterns of paraboloidal reflectors by high frequency asymptotic techniques, Electronics Letters, 1976, vol.12, pp.229-231.

14.    M. Şafak and P.P. Delogne, Cross-polarization in Cassegrainian and front-fed parabolical antennas, IEEE Trans. Antennas and Propagation, vol.AP-24, 1976, pp.497-501.

15.    P.P. Delogne and M. Şafak, Electromagnetic theory of the leaky coaxial cable, Proc. Radio and Electronic Eng., 1975, vol.45, pp.233-240.

 

KİTAP BÖLÜMÜ

1.    M. Şafak, Internet Televizyonculuğu ve IPTV’nin Yeri, Internet Televizyonculuğu,  s.:109-129 (Kitap bölümü), Kitabın başlığı: Birey Eksenli İnteraktif Yayıncılık IPTV, Yayınlayan: RTÜK,  Mart 2008, 333 s. 

 

ULUSAL ORTAMDA YAYINLANAN MAKALELER

1.      M. Şafak, Uydu Sistemleri, Popüler Bilim Dergisi, sayı 167,  sayfa: 36-37, Ocak 2008.

2.      M.Şafak, Remote Sensing, Fizik Mühendisliği, vol.3, no.31, pp.51-85, Dec.1986 (in Turkish).

3.      M.Şafak and E. Yazgan, Analysis of focus-fed symmetric microwave reflector antennas, Doğa Bilim Dergisi, vol.B7, no.3, 1983, pp.196-203 (in Turkish).

 

ULUSLARARASI KONFERANS BİLDİRİLERİ

1.      M. Ahcı ve M. Şafak, Constellation rotation and coordinate interleaving in OFDM systems, Proc. 15th International OFDM-Workshop (InOWo’10), September 1-2, 2010, Hamburg, Germany.

2.      S. A. Yıldırım, M. Şafak ve M. E. Yanık, Çift ilintili huzme oluşturucu sistemlerde çeşitleme kaybı-dizi kazancı ödünleşimi, IEEE 18. Sinyal İşleme ve İletişim Uygulamaları Kurultayı, Diyarbakır, 22-24 Nisan 2010.

3.      M. Ahçı ve M. Şafak, Sönümlenmeli kanallarda döndürülmüş sinyal kümesi yöntemlerinin etkileri, IEEE 18. Sinyal İşleme ve İletişim Uygulamaları Kurultayı, Diyarbakır, 22-24 Nisan 2010 .

4.      Ö. Haliloğlu ve M. Şafak, Çoklu engel kırınımına bağlı gölgeleme, IEEE 18. Sinyal İşleme ve İletişim Uygulamaları Kurultayı, Diyarbakır, 22-24 Nisan 2010.

5.      M.Karaman-Çolakoğlu and M. Şafak, Çok girdili Çok Çıktılı Sistemlerde Kanal Modellerinin Karşılaştırılması, IEEE Sinyal İşleme ve Telekomünikasyon Uygulamaları Kurultayı, SIU 2007, Eskişehir, 11-13 Haziran 2007.

6.      M. Şafak, Bilişsel İletişim Ağlarına Doğru, IEEE Sinyal İşleme ve Telekomünikasyon Uygulamaları Kurultayı, SIU 2007, Eskişehir, 11-13 Haziran 2007.

7.      Mehmet Şafak, Towards Cognitive Communications, COST289 13th Management Committee Meeting, 13 April 2007, Göteborg, Sweden.

8.      M.Karaman-Çolakoğlu and M. Şafak, On the MIMO Channel Capacity Predicted by Kronecker and Müller Models, COST289 4th Workshop Contributions to Spectrum and Power Efficient Broadband Communications, 11-12 April 2007, Göteborg, Sweden.

9.      M.Şafak, Digital Video Broadcasting-An Overview, COST289 11th Management Committee Meeting, 12-14 July 2006, Aveiro, Portugal.

10.  Rafet Yücel ve Mehmet Şafak, OFDM Sistemlerinde İyileştirilmiş Büyül Sembol Kontrol Yöntemi İle Tepe/Ortalama Güç Oranının Düşürülmesi, 12. Sinyal İşleme ve İletişim Uygulamaları Kurultayı, 28-30 Nisan 2004, Kuşadası, pp. 65-67.

11.  G. Pay ve M. Şafak, Array Relay, 1st COST 289 Workshop, Budapest, 7-9 July, 2004.

12.  S. Bozay ve M. Şafak, Performance analysis of spatial multiplexing and maximal ratio combining systems in the presence of polarization diversity, COST 289 2. Yönetim Kurulu Toplantısı, 3-4 Temmuz 2003, Hamburg, Almanya

13.  S. Bozay ve M. Şafak, Kutuplanma Çeşitlemesinde Uzamsal Çoğullama Sisteminin ve Büyül-Oran Birleştiricisinin Başarım Analizi, 11. Sinyal İşleme ve İletişim Uygulamaları Kurultayı, pp.273-276, 18-20 Haziran 2003, Koç Üniversitesi, İstanbul.

14.  M. Yılmaz, S. Bozay ve M. Şafak, İlintili sönümlemenin uzay-zaman kodlamasına etkisi, Sinyal İşleme ve Uygulamaları (SIU) Sempozyumu, cilt 2, pp.737-742, 12-14 Haziran 2002, Pamukkale.

15.  Ö. Karabacak and M.Şafak, Performance of an OFDM system in frequency non-selective, fast fading channels, Proc. 7th International OFDM-Workshop (InOWo’02), pp. 241-244, September 10-11, 2002, Hamburg, Germany.

16.  F. Kural, M.Şafak, An experimental investigation of impulse noise on low-voltage powerlines, 6th International Symposium on Power-Line Communications and Applications (ISPLC 2002), 27-29 March 2002, Athens, Greece, pp.258-260.

17.  G. Pay and M. Şafak, Performance of OFDM systems in impulsive noise channels, 6th Int. OFDM workshop, 18-19 Sept. 2001, Hamburg, Germany.

18.  G. Pay and M. Şafak, The analysis of the degradation in discrete multitone systems due to impulsive noise, Vehicular Technology Conference, Rhodes, Greece, May 2001.

19.  E. Yavuz and M. Şafak, Realization of a simulation software for power line communications, Int. Symp. on Power Line Communications (ISPLC 2001),  Malmö, Sweden, pp. 247-252, 4-6 April 2001.

20.  B. Kaplan-Güvenç and M. Şafak, A DSP based DMT modem for power line communications, Int. Symp. on Power Line Communications (ISPLC 2001), Malmö, Sweden, pp. 377-382, 4-6 April 2001.

21.  G. Pay and M. Şafak, SER performance analysis of DMT systems under impulsive noise, Int. Symp. on Power Line Communications (ISPLC 2001), Malmö, Sweden, pp. 109-114, 4-6 April 2001.

22.  A. Balbaş and M. Şafak, Combined Punctured Convolutional Coding and GMSK with Limiter Discriminator Detection in Gaussian Noise Channels, International Symposium on Telecommunications (IST 2001), 1-3 Sept.2001, Tehran, Iran.

23.  G. Ercek and M. Şafak, Nakagami dağilimli sönümlemeli kanallarda kafes kodlamalı kiplenimin başarımının incelenmesi, SIU'2000, 12-14 Haziran 2000, Antalya, Turkey.

24.  F. Kural, E. Yavuz, M. Şafak ve B. Ercan, Alçak gerilim hatlarının sayısal iletişim için modellenmesi, SIU'2000, 12-14 Haziran 2000, Antalya, Turkey.

25.  E. Yavuz, F. Kural, N. Çoban, B. Ercan and M. Şafak, Power line modelling for digital communications, in Proc. of 2000 International Symposium on Power Line Communications and Applications (ISPLC2000), 5-7 April 2000, Limerick, Ireland, pp.161-168.

26.  M. Abdel-Hafez and M. Şafak, A simple analysis of a CDMA cellular radio system, MELECON 2000, Cyprus.

27.  M.Abdel-Hafez and M.Şafak, Correlated shadowing and near-far effects on throughput of slotted ALOHA in Nakagami fading environment, Proc. MELECON’ 98 Conf., 18-20 May 1998, Tel-Aviv, Israel, pp.721-725.

28.  M.Abdel-Hafez and M.Şafak, A BER analysis for a candidate channel model for UMTS, Proc. of IEEE Vehicular Technology Conference VTC’98, 18-21 May 1998, Ottawa, Ontario, Canada.

29.  B. Kaplan and M. Şafak, Calculation of bit error rate floor by using two-ray model, Proc. of SIU’98, 15-17 May 1998, Kızılcahamam, Ankara.

30.  M.Şafak, Co-channel interference probability with Rician-faded and log-normal shadowed correlated interferers, IEEE/VTS 46th Vehicular Technology Conference (VTC’96), Atlanta, USA, 28 April-1 May 1996.

31.  M. Şafak and A. Şafak, Performance of digital microcellular radio systems with Rician fading and correlated shadowing, Record of 1995 4th IEEE International Conference on Universal Personal Communications, November 6-10, 1995, Meiji Kinenkan, Tokyo, Japan, pp.987-991.

32.  A. Şafak and M. Şafak, Moments of the sum of correlated log-normal random variables, Proc. of IEEE 44th Vehicular Technology Conference, Stockholm, Sweden, June 7-11, 1994, vol. 1, pp.140-144.

33.  A. Şafak and M. Şafak, Throughput in macro and micro-cellular radio systems with multiple correlated log-normal interferers, Proc. of IEEE 44th Vehicular Technology Conference, Stockholm, Sweden, June 7-11, 1994, vol.2, pp.1198-1202.

34.  A. Şafak and M. Şafak, Spectrum efficiency with correlated interferers, Proc. of the 5th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC'94), The Hague, The Netherlands, 18-22 September 1994, vol.1, pp.306-310.

35.  M.Şafak, An overview of the assessment of the electronic threat to MILSATCOM systems, AGARD Conf. Proc. No.488 Electronic Counter-Counter Measures for Avionic Sensors and Communications Systems, AGARD-CP-488 (suppl.), paper no.4, 1-5 Oct.1990, Ottobrunn, Germany.

36.  M.Şafak, An overview of ECCM factors in MILSATCOM systems, AGARD Conf. Proc. No. 488 Electronic Counter-Counter Measures for Avionics Sensors and Com. Systems, AGARD-CP-488, pp.29-1, 29-12, 1-5 Oct. 1990, Ottobrun, Germany.

37.  E. Yazgan and M. Şafak, Unified analysis of radiation patterns for dual-reflector antennas, Proc. Mediterranean Electrotechnical Conf., Melecon '83, vol.I, Athens, Greece, 24-26 May 1983, p.B4.13.

38.  E. Yazgan and M. Şafak, GTD analysis of offset reflector antennas with offset feeds, Proc. 7th Colloq. on Microwave Commun., Budapest, 1982, vol.II, pp.15-18/K.

39.  E. Yazgan and M. Şafak, High-frequency scattering from offset reflectors, Proc. IEE Int. Conf. on Antennas and Propagation, York, U.K., 1981, pp.265-268.

40.  E. Yazgan and M. Şafak, Calculation of the radiation patterns of axially symmetric reflectors, Proc. 10th European Microwave Conf., 1980, pp.78-83.

41.  M. Şafak, Comparison of uniform asymptotic theory and uniform geometrical theory of diffraction, Proc. IEE Int. Conf. on Antennas and Propagat., 1978, pp.261-264.

42.  M. Şafak, A comparative study of GTD and physical optics diffraction coefficients for axially symmetric reflectors, Proc. 7th European Microwave Conf., 1977, pp.670-674.

43.  P.P. Delogne and M. Şafak, Electromagnetic theory of the leaky coaxial cable, Proc. Coll. Leaky Feeders Radio Comm. Systems, Univ. of Surrey, April 1974, pp.125-147, 1974.

44.  M. Şafak and P.P.Delogne, Design of antenna distributions for optimum gain with noise interference rejection, Proc. AGARD Conference no. 127 on Propagation Effects on Frequency Sharing, 1973, pp. 12-1, 12-12.

 

ULUSAL KONFERANS BİLDİRİLERİ

1.      Ö. Haliloğlu ve M. Şafak, Parazit MIMO sisteminin başarım analizi, URSI Ulusal Kongresi 2010, 25-27 Ağustos 2010, KKTC.

2.      M.  Şafak, Sayısal Televizyon Yayıncılığı, RTÜK Sayısal Yayıncılık Paneli, İstanbul, 8 Mayıs 2006.

3.    Müge Yılmaz ve Mehmet Şafak, Uzay-Zaman Kodlanmış CDMA Sistemlerinin Başarımı, URSI-Türkiye 2004 Bilimsel Kongresi, 8-10 Eylül, Bilkent Üniversitesi, Ankara, Ankara, pp.267-269.

4.    Rafet Yücel ve Mehmet Şafak, OFDM sistemlerinde sıkıştırma-genleştirme ve kırpma yöntemlerinin birleştirilmesi ile tepe/ortalama güç oranının düşürülmesi, URSI-Türkiye 2004 Bilimsel Kongresi, 8-10 Eylül, Bilkent Üniversitesi, Ankara, Ankara, pp. 167 – 169.

5.    Ö. Karabacak ve M.Şafak, Dikgen frekans bölüşümlü çoğullama (OFDM) sisteminin düz ve hızlı sönümlemeli kanallarda başarım analizi, URSI 1. Ulusal Kongresi, s.193-196, 18-20 Eylül 2002, İstanbul.

6.    M.Şafak, Enerji hatları üzerinden iletişim-son gelişmeler, İletişim Teknolojileri 1. Ulusal Sempozyumu, 17-21 Ekim 2001, Ankara.

7.    S. Bozay, Korelasyonun Nakagami-m tipi sönümlemede MRC çeşitlemeli alış sistemlerine etkisi, İletişim Teknolojileri 1. Ulusal Sempozyumu, 17-21 Ekim 2001, Ankara.

8.    M.Şafak, Cross-polarisation in reflector antennas with asymmetric feed patterns, Proc. 2nd Symposium on Antennas, Propagation, Microwaves and Electromagnetics, Middle East Technical University, Ankara, Turkey, 17-21 Oct. 1983,  pp.148-167.

9.    D.Öner and M.Şafak, Statistical analysis of focal region fields of parabolic reflector antennas, Proc. 2nd Symposium on Antennas, Propagation, Microwaves and Electromagnetics, Middle East Technical University, Ankara, Turkey, 17-21 Oct. 1983, pp.168-185.

10.      E.Yazgan and M.Şafak, Polarization losses of reflector antennas with asymmetric feed patterns, Proc. 2nd Symposium on Antennas, Propagation, Microwaves and Electromagnetics, Middle East Technical University, Ankara, Turkey, 17-21 Oct. 1983, pp.138-147.

11.    E.Yazgan and M.Şafak, Scattering from focus-fed reflectors, Proc. 7th TÜBİTAK Conf., pp.13-23, Kuşadası, 1980 (in Turkish).

12.    M.Şafak, High-frequency scattering from a paraboloid, Proc. Int. Symposium on Developments in Electromagnetic Scattering in High Frequency and Resonance Regions, Middle East Technical University, Ankara, pp.280-318, June 1980.

 

BİLİMSEL RAPORLAR

1.      M.Şafak, An initial assessment of the vulnerability of geostationary satellites to attacks by laser weapons, SHAPE Technical Centre, Technical Note TN-372, April 1992 (NATO Confidential).

2.      M. Şafak, A review of the specifications for the nuclear radiation environment for NATO satellites, SHAPE Technical Centre, Technical Note TN-363, April 1991, 42 pages (NATO Confidential).

3.      M.Şafak, An overview of the assessment of the electronic threat to MILSATCOM systems, SHAPE Technical Centre, Professional Paper PP-291, February 1991 (NATO Confidential).

4.      M.Şafak, An overview of ECCM factors in MILSATCOM systems, SHAPE Technical Centre, Professional Paper PP-290, Jan.1991 (NATO Unclassified).

5.      M. Şafak, An assessment of jamming and interception threats to the NATO SATCOM system, SHAPE Technical Centre, Technical Memorandum TM-872, Nov. 1990, 228 pages (NATO Secret).

6.      M. Şafak, An assessment of the nuclear threat to the NATO SATCOM system, SHAPE Technical Centre, Technical Memorandum TM-884, December 1990, 178 pages (NATO Secret).

7.      M. Şafak, Some considerations concerning the loading of NATO IV satellites, SHAPE Technical Centre, Internal Working Paper, 1990 (NATO Restricted).

8.      M. Şafak, An introduction to DAMA techniques for SATCOM systems, Annex II to AC/302(SG/11)D/31, AC/302(SG/11)WG/8-D/3, 5 April 1990 (NATO Unclassified).

9.      M. Şafak, Propagation effects of high altitude nuclear detonations on the NATO SATCOM system, SHAPE Technical Centre, Technical Memorandum TM-844, May 1988 (NATO Secret).

10.  M. Şafak, Performance measurement of the OM-55 anti-jamming modem SATCOM modem, SHAPE Technical Centre, Technical Memorandum TM-844, May 1988 (NATO Secret).

11.  M. Şafak and T.P.M. Langmuur, Performance measurement of the UK FHSS anti-jamming modem, SHAPE Technical Centre, Technical Note STC-TN-092, 97 pages, November 1986, (NATO Secret).

12.  M. Şafak and E. Yazgan, Comparative study of microwave reflector antennas, TÜBİTAK Report MAG-473, 1980 (in Turkish).

13.  M. Şafak, Calculation of radiation patterns of reflector antennas by high frequency asymptotic techniques, TH Report 76-E-62, 1976, Eindhoven University of Technology, The Netherlands.

 

TEZLER

1.        M.Şafak, Comparison of high frequency methods, Thesis for Associate Professorship, Hacettepe University, 1979, 116 pages (in Turkish).

2.        M. Şafak, Optimization of aperture antenna distributions, Ph.D. thesis, Université Catholique de Louvain, Louvain-La-Neuve, Belgium, January 1975.

3.        M. Şafak, Synthèse des lois d'illumination d'antennes à ouverture, Master thesis, Université Catholique de Louvain, Belgium, July 1972.

 

DERS NOTLARI

1.        M. Şafak, Antennas and Propagation, Course notes, Hacettepe University, 1981 (in Turkish).

2.        M. Şafak, Electromagnetic Theory, Course notes, Hacettepe University, 1979, 200 pages (in Turkish).

3.        M. Şafak, Telecommunications Theory II, Course notes, Hacettepe University, 2001 (in English).

4.        M. Şafak, Digital Communications (2 volumes), Course notes (graduate level), Hacettepe University, 1996 (in English).

5.        M. Şafak, Telecommunication Systems Design, Course notes, Hacettepe University, 1996 (in English)