000			02259cam a2200337 a 4500
003			EG-GiCUC
005			20250223031400.0
008			151228s2015 ua f m 000 0 eng d
040			_aEG-GiCUC _beng _cEG-GiCUC
041	0		_aeng
049			_aDeposite
097			_aM.Sc
099			_aCai01.13.08.M.Sc.2015.Ya.R
100	0		_aYahia Ramadan Ahmed Mohamed Ramadan
245	1	0	_aRF beamforming for millimeter wave MIMO - OFD systems / _cYahia Ramadan Ahmed Mohamed Ramadan ; Supervised Mohamed Mohamed Khairy , Ahmed Salah Ibrahim
246	1	5	_aتشكيل الأشعة فى نطاق موجات الراديو لأنظمة الموجات الملليمترية متعددة الهوائيات القائمة على تقسيم الترددات المتعامدة
260			_aCairo : _bYahia Ramadan Ahmed Mohamed Ramadan , _c2015
300			_a65 P. ; _c30cm
502			_aThesis (M.Sc.) - Cairo University - Faculty of Engineering - Department of Electronics and Communication
520			_aIn this thesis, we design the RF beamformers for novel criteria. First, we propose a novel spatial diversity scheme to mitigate the human - blockage which is critical issue for mmWave communications. The proposed spatial diversity scheme distributes the energy efficiently over the L strongest paths. For partial channel knowledge at the transmitter, where the transmitter has knowledge only of the angles of departure of the propagation paths, we design the RF precoder to minimize the outage transmission probability or minimize the average bit error rate (BER). The proposed schemes outperform the conventional beamforming schemes with full spatial diversity order. Finally, we design the RF precoder for physical layer security for both full and partial channel knowledge at the transmitter. We propose algorithms that outperform the conventional secrecy schemes with different computational complexities
530			_aIssued also as CD
653		4	_aBeamforming
653		4	_aMillimeter wave
653		4	_aRF
700	0		_aAhmed Salah Ibrahim , _eSupervisor
700	0		_aMohamed Mohamed Khairy , _eSupervisor
856			_uhttp://172.23.153.220/th.pdf
905			_aNazla _eRevisor
905			_aSamia _eCataloger
942			_2ddc _cTH
999			_c54165 _d54165