ELEKTRİK VE ELEKTRONİK MÜHENDİSLİĞİ BÖLÜMÜ


Özlem Tuğfe Demir

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Teaching (EE311, EE313, EE314, EE430, and EE 497) and Research Assistant
Oda No: 
E-102
Tel No: 
+90 (312) 210-4587
E-posta: 
deozlem metu edu tr
Eğitim: 

B.Sc: METU, Electrical and Electronics Eng., 2012; M.Sc: METU, Electrical and Electronics Eng., 2014; Ph.D: METU, Electrical and Electronics Eng., (Ongoing)

Araştırma Konuları: 

Sensor array and multichannel signal processing, beamforming, cognitive radio systems, relay networks, optimization

Yayınlar: 

Journal Papers

[1] Ö. T Demir and T.E. Tuncer, "Optimum discrete transmit beamformer design", Digital Signal Processing, vol. 36, pp. 57-68, Jan. 2015.

[2] Ö. T Demir and T.E. Tuncer, "Optimum discrete phase-only multicast beamforming with joint antenna and user selection in cognitive radio networks", Digital Signal Processing, vol. 46, pp. 81-96, Nov. 2015.

 

[3] Ö. T Demir and T.E. Tuncer, "Antenna selection and hybrid beamforming for simultaneous wireless information and power transfer in multi-group multicasting systems", IEEE Transactions on Wireless Communications, vol. 15, no. 10,  pp. 6948-6962, Oct. 2016.


International Conference Papers

[1] Ö. T Demir and T.E. Tuncer, "Optimum design of discrete transmit phase only beamformer", in Proc. European Signal Processing Conference (EUSIPCO), 2013.

[2] Ö. T Demir and T.E. Tuncer, "Optimum discrete single group multicast beamforming", in Proc. IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2014.

[3] Ö. T Demir and T.E. Tuncer, "Optimum discrete phase-only transmit beamforming with antenna selection", in Proc. European Signal Processing Conference (EUSIPCO), 2014.

[4] Ö. T Demir and T.E. Tuncer, "Alternating maximization algorithm for the broadcast beamforming", in Proc. European Signal Processing Conference (EUSIPCO), 2014.

[5] Ö. T Demir and T.E. Tuncer, "Multicast beamforming with antenna selection using exact penalty approach", in Proc. IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2015.

[6] Ö. T Demir and T.E. Tuncer, "Optimum discrete distributed beamforming for single group multicasting relay networks with relay selection", in Proc. IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2015.

[7] Ö. T Demir and T.E. Tuncer, "Optimum phase-only discrete broadcast beamforming with antenna and user selection in interference limited cognitive radio networks", in Proc. IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2015.

[8] Ö. T. Demir and T. E. Tuncer, “Joint optimization of transmit and relay beamformer for single group multicast transmission”, in Proc. European Signal Processing Conference (EUSIPCO), 2015.

[9] Ö. T. Demir and T. E. Tuncer, “Multi-group multicast beamforming for simultaneous wireless information and power transfer”, in Proc. European Signal Processing Conference (EUSIPCO), 2015.

[10] Ö. T. Demir and T. E. Tuncer, “Hybrid beamforming with two bit RF phase shifters in single group multicasting", in Proc. IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2016.

[11] Ö. T. Demir and T. E. Tuncer, “Distributed beamforming in relay networks for energy harvesting multi-group multicast systems", in Proc. IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2016.

National Conference Papers

[1] Ö. T Demir and T.E. Tuncer, "Transmit beamformer design with nonlinear optimization", in Proc. Signal Processing and Communications Applications Conference (SIU), 2013.

[2] Ö. T Demir and T.E. Tuncer, "Joint discrete phase-only broadcast beamforming with antenna selection", in Proc. Signal Processing and Communications Applications Conference (SIU), 2014.

[3] Ö. T Demir and T.E. Tuncer, "Optimum discrete max-min style broadcast beamforming design", in Proc. Signal Processing and Communications Applications Conference (SIU), 2014.

[4] Ö. T Demir and T.E. Tuncer, "Iterative rank minimization for broadcast beamforming", in Proc. Signal Processing and Communications Applications Conference (SIU), 2014.

[5] Ö. T Demir and T.E. Tuncer, "Discrete broadcast beamforming with antenna and user selection", in Proc. Signal Processing and Communications Applications Conference (SIU), 2015.

[6] Ö. T Demir and T.E. Tuncer, "Discrete relay beamforming for broadcasting with relay selection", in Proc. Signal Processing and Communications Applications Conference (SIU), 2015.

[7] Ö. T Demir and T.E. Tuncer, "Multicast beamforming with antenna selection using alternating maximization", in Proc. Signal Processing and Communications Applications Conference (SIU), 2015.


[8] Ö. T Demir and T.E. Tuncer, "Relay-assisted beamforming for multicast systems with energy harvesting capability", in 2016 24th Signal Processing and Communication Application Conference (SIU), Zonguldak, 2016, pp. 1865-1868.


[9] Ö. T Demir and T.E. Tuncer, "Two-bit hybrid beamforming for broadcasting", in 2016 24th Signal Processing and Communication Application Conference (SIU), Zonguldak, 2016, pp. 1733-1736.

Tez / Araştırma Bilgileri: 

Optimization Techniques for Nonconvex Problems and Optimum Discrete Transmit Beamformer Design