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http://dx.doi.org/10.5573/ieie.2016.53.6.03

Nonlinear Effect on the BER and Spectrum Shape of OFDM, UFMC and FBMC for 5G Mobile Communication  

Lee, Dong-Hyung (SK Telecom)
An, Changyoung (Department of Electronic Engineering/Research Institute for Computer and Information Communication, Chungbuk National University)
Kung, Kyung-Lok (Department of Electronic Engineering/Research Institute for Computer and Information Communication, Chungbuk National University)
Kim, Byeongjae (Department of Electronic Engineering/Research Institute for Computer and Information Communication, Chungbuk National University)
Ryu, Heung-Gyoon (Department of Electronic Engineering/Research Institute for Computer and Information Communication, Chungbuk National University)
Publication Information
Journal of the Institute of Electronics and Information Engineers / v.53, no.6, 2016 , pp. 3-14 More about this Journal
Abstract
Recently, researches for new waveforms have been carried in order to satisfy KPI for 5G mobile communication system. UFMC and FBMC are well known as ways to reduce OOB power. In this paper, we analyze spectrum of OFDM, UFMC, and FBMC system under nonlinear HPA environment. And then we evaluate and analyze performance of these systems under the same environment. As simulation results, OOB power of OFDM, UFMC, and FBMC increases with HPA nonlinearity increasement. Especially, OOB power of FBMC is the largest increase due to HPA nonlinearity. Also, BER performance of these systems is degraded by increasement of HPA nonlinearity. Therefore, In this paper, we can confirm that a system with low-complexity and high-speed processing is advantageous, because BER performance and OOB power characteristic of these systems are degraded to similar level, when these systems are implemented in real world.
Keywords
new waveform; OFDM; FBMC; UFMC; HPA nonlinearity;
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