scalar field, we obtained non-degenerate heavy Majorana neutrino mass spectrums. In the framework of radiative seesaw that neutrino masses are produced at one-loop level, we concentrated on the effects of CP phase appeared in Y$_{ν}$ , even CP phases coming from both Y$_{ν}$ and M$_{R}$ participate in the forming of low energy observables and flavored leptogenesis. And we scanned all the parameter space by considering the experimental bounds of low- energy neutrino oscillation data. We analyzed possible spectrums of light neutrinos and their flavor mixing angles corresponding to heavy Majorana neutrino mass ordering, and we found only normal hierarchical and quasi-degenerate spectrums of light neutrino are preferred in our model. The extent of θ$_{13}$ and Dirac CP phase δ are also investigated where the size of θ$_{13}$ is sensitive to ratio υ$_{ψ}$/ Λ. In particular, in order to show a successful leptogenesis as well as a linking leptogenesis with low energy observables, we have considered only in the case of a non-vanishing CP phase appeared in Y$_{ν}$ , and studied the viability of thermal leptogenesis at TeV scale. Furthermore it turned out that resonant enhancement to lower down the scale of leptogenesis does not work in our scenario. Instead, we considered the phase space suppression method where we used the parameter which represents the degeneracy between lightest Z$_{2}$ -odd scalar and lightest right-handed Majorana neutrino to modulate the wash- out effects in the decaying processes of heavy Majorana neutrinos, and it showed that only hierarchical mass ordering of heavy Majorana neutrino corresponding to normal hierarchical light neutrino mass spectrum could give a successful leptogenesis with a relatively large U$_{e}$$_{3}$ in our model. YHA is supported by the National Science Council of R.O.C. under Grants No: NSC-97- 2112-M-001-004-MY3. Acknowledgments 26