The Research on Improved Companding Transformation for Reducing PAPR in Underwater Acoustic OFDM Communication System
To solve the problem of the high peak-to-average power ratio (PAPR) in Orthogonal Frequency Division Multiplexing (OFDM) for the underwater acoustic communication system, the paper offers a method of reducing PAPR which combines the amplitude limiting and the improved nonlinear transformation. Tradi...
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2016-01-01
|
| Series: | Discrete Dynamics in Nature and Society |
| Online Access: | http://dx.doi.org/10.1155/2016/3167483 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832558292453294080 |
|---|---|
| author | Jinqiu Wu Gang Qiao Xiaofei Qi |
| author_facet | Jinqiu Wu Gang Qiao Xiaofei Qi |
| author_sort | Jinqiu Wu |
| collection | DOAJ |
| description | To solve the problem of the high peak-to-average power ratio (PAPR) in Orthogonal Frequency Division Multiplexing (OFDM) for the underwater acoustic communication system, the paper offers a method of reducing PAPR which combines the amplitude limiting and the improved nonlinear transformation. Traditional amplitude limiting technique can reduce PAPR in OFDM system effectively, at the cost of reducing the bit error rate (BER). However the companding transformation has far less computation complexity than SLM or PTS technologies and can improve the BER performance compared to the amplitude limiting technique simultaneously. The paper combines these two kinds of techniques, takes full use of advantages of the two method, and puts forward a low-complexity scheme choosing parameters that are more appropriate to the underwater acoustic field, with the result of improved BER performance even in lower SNR. Both simulation and experiment results show that the new method which combines clipping and companding transformation can effectively reduce the PAPR in the underwater acoustic OFDM communication system and improve the BER performance simultaneously. |
| format | Article |
| id | doaj-art-12610383903d49919c5c6541946f78d1 |
| institution | Kabale University |
| issn | 1026-0226 1607-887X |
| language | English |
| publishDate | 2016-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Discrete Dynamics in Nature and Society |
| spelling | doaj-art-12610383903d49919c5c6541946f78d12025-02-03T01:32:45ZengWileyDiscrete Dynamics in Nature and Society1026-02261607-887X2016-01-01201610.1155/2016/31674833167483The Research on Improved Companding Transformation for Reducing PAPR in Underwater Acoustic OFDM Communication SystemJinqiu Wu0Gang Qiao1Xiaofei Qi2College of Underwater Acoustic Engineering, Harbin Engineering University, Harbin 150001, ChinaCollege of Underwater Acoustic Engineering, Harbin Engineering University, Harbin 150001, ChinaCollege of Underwater Acoustic Engineering, Harbin Engineering University, Harbin 150001, ChinaTo solve the problem of the high peak-to-average power ratio (PAPR) in Orthogonal Frequency Division Multiplexing (OFDM) for the underwater acoustic communication system, the paper offers a method of reducing PAPR which combines the amplitude limiting and the improved nonlinear transformation. Traditional amplitude limiting technique can reduce PAPR in OFDM system effectively, at the cost of reducing the bit error rate (BER). However the companding transformation has far less computation complexity than SLM or PTS technologies and can improve the BER performance compared to the amplitude limiting technique simultaneously. The paper combines these two kinds of techniques, takes full use of advantages of the two method, and puts forward a low-complexity scheme choosing parameters that are more appropriate to the underwater acoustic field, with the result of improved BER performance even in lower SNR. Both simulation and experiment results show that the new method which combines clipping and companding transformation can effectively reduce the PAPR in the underwater acoustic OFDM communication system and improve the BER performance simultaneously.http://dx.doi.org/10.1155/2016/3167483 |
| spellingShingle | Jinqiu Wu Gang Qiao Xiaofei Qi The Research on Improved Companding Transformation for Reducing PAPR in Underwater Acoustic OFDM Communication System Discrete Dynamics in Nature and Society |
| title | The Research on Improved Companding Transformation for Reducing PAPR in Underwater Acoustic OFDM Communication System |
| title_full | The Research on Improved Companding Transformation for Reducing PAPR in Underwater Acoustic OFDM Communication System |
| title_fullStr | The Research on Improved Companding Transformation for Reducing PAPR in Underwater Acoustic OFDM Communication System |
| title_full_unstemmed | The Research on Improved Companding Transformation for Reducing PAPR in Underwater Acoustic OFDM Communication System |
| title_short | The Research on Improved Companding Transformation for Reducing PAPR in Underwater Acoustic OFDM Communication System |
| title_sort | research on improved companding transformation for reducing papr in underwater acoustic ofdm communication system |
| url | http://dx.doi.org/10.1155/2016/3167483 |
| work_keys_str_mv | AT jinqiuwu theresearchonimprovedcompandingtransformationforreducingpaprinunderwateracousticofdmcommunicationsystem AT gangqiao theresearchonimprovedcompandingtransformationforreducingpaprinunderwateracousticofdmcommunicationsystem AT xiaofeiqi theresearchonimprovedcompandingtransformationforreducingpaprinunderwateracousticofdmcommunicationsystem AT jinqiuwu researchonimprovedcompandingtransformationforreducingpaprinunderwateracousticofdmcommunicationsystem AT gangqiao researchonimprovedcompandingtransformationforreducingpaprinunderwateracousticofdmcommunicationsystem AT xiaofeiqi researchonimprovedcompandingtransformationforreducingpaprinunderwateracousticofdmcommunicationsystem |