| Autor: |
Miao ZHANG, Xianzhong XIE, Lei WU, Weijia LEI |
| Jazyk: |
čínština |
| Rok vydání: |
2016 |
| Předmět: |
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| Zdroj: |
Dianxin kexue, Vol 32, Pp 36-43 (2016) |
| Druh dokumentu: |
article |
| ISSN: |
1000-0801 |
| DOI: |
10.11959/j.issn.1000-0801.2016239 |
| Popis: |
As an alternative of the fifth generation mobile communication system waveforms,generalized frequency division multiplexing(GFDM)which has more advantages over OFDM has been trusted into the limelight.Nevertheless,GFDM still suffers from a high peak to average power ratio(PAPR).Considering that different filters have their own phase-frequency characteristics,a new algorithm based on randomly assigning filters to reduce PAPR in GFDM(RAF-GFDM)was proposed.According to the feature of GFDM system that the filter structure could be selected flexibly,different filters were assigned to subcarriers randomly to adjust the phase congruency due to signals superimposition.Additionally,this method can suppress PAPR effectively without causing signal distortion.Theoretical analysis and simulation results demonstrate that the proposed algorithm does not bring additional calculation costs while reducing PAPR and almost has no effect on the bit error rate(BER),and it may provide a higher application value. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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