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Toplam kayıt 6605, listelenen: 101-110
FDD massive MIMO downlink channel estimation via selective sparse coding over AOA/AOD cluster dictionaries
(Institute of Electrical and Electronics Engineers Inc., 2018)
Sparse coding over a redundant dictionary has recently been used as a framework for downlink channel estimation in frequency division duplex massive multiple-input multiple-output antenna systems. This usage allows for ...
Adaptive windowing of insufficient CP for joint minimization of ISI and ACI beyond 5G
(Institute of Electrical and Electronics Engineers Inc., 2017)
Using minimum, even insufficient guards are proposed to achieve the spectral efficiency and latency requirements of cellular communication systems beyond 5G. This leads to interference in both time and frequency domains. ...
Enhancing physical layer security of OFDM systems using channel shortening
(Institute of Electrical and Electronics Engineers Inc., 2017)
This work presents a simple, spectral and power efficient scheme for providing secure OFDM communication system using channel shortening. The basic concept is to utilize a channel shortening technique, whose design is based ...
The impact of adaptive guards for 5G and beyond
(Institute of Electrical and Electronics Engineers Inc., 2017)
The next generation communication systems are evolving towards an increased flexibility in different aspects. Enhanced flexibility is the key in order to address diverse requirements. This paper presents the significance ...
Optimization of antenna beamwidth under blockage ımpact in millimeter-wave bands
(Institute of Electrical and Electronics Engineers Inc., 2018)
In this paper, beam expansion and optimization approach is proposed as a solution to alleviate blockage impact at millimeter wave (mm-wave) frequency bands. Directional communication in mm-wave bands provides opportunities ...
Second career teachers: Reasons for career change and adaptation
(Cukurova Unıversity, 2019)
This study aims to conduct an in-depth study on the teachers who began their first careers in jobs outside teaching and then started teaching as a second career. In the study, the phenomenological design, one of the ...
Rotator manşet lezyonu olan olgularda üst ekstremite ve skapular proprioseptif nöromusküler fasilitasyon tekniğinin etkisi
(Turkey Assoc Physiotherapists, 2019)
Amaç: Bu çalışma rotator manşet lezyonu tanısı alan olgularda proprioseptif nöromusküler fasilitasyon (PNF) tekniğinin ağrı, fonksiyonellik ve yaşam kalitesi üzerindeki etkisini incelemek amacıyla yapıldı. Yöntem: Çalışmaya ...
DNA methylation pattern of TM6SF2 influences NAFLD progression in genotype-dependent manner
(Elsevier Science Bv, 2019)
Background and aims: Non-alcoholic fatty liver disease (NAFLD) arises due to complex interaction of genetic and environmental factors. Evidence suggests that transmembrane 6 superfamily member 2 (TM6SF2) E167K variant is ...
Performance comparison of Next Generation sequencing platforms
(37th Annual International Conference of the IEEE Engineering-in-Medicine-and-Biology-Society (EMBC), 2015)
Next Generation DNA Sequencing technologies offer ultra high sequencing throughput for very low prices. The increase in throughput and diminished costs open up new research areas. Moreover, number of clinicians utilizing ...
Secure communication in frequency selective channels with fade-avoiding subchannel usage
(IEEE Computer Society, 2014)
The random nature of fading channels is an enabling factor for achieving secrecy against eavesdropping. By considering the channel frequency selectivity, we propose an adaptive transmission scheme in which the faded ...