The Research on Improved Companding Transformation for Reducing PAPR in Underwater Acoustic OFDM Communication System
Joint Authors
Wu, Jinqiu
Qiao, Gang
Qi, Xiaofei
Source
Discrete Dynamics in Nature and Society
Issue
Vol. 2016, Issue 2016 (31 Dec. 2016), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2016-04-17
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
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.
American Psychological Association (APA)
Wu, Jinqiu& Qiao, Gang& Qi, Xiaofei. 2016. The Research on Improved Companding Transformation for Reducing PAPR in Underwater Acoustic OFDM Communication System. Discrete Dynamics in Nature and Society،Vol. 2016, no. 2016, pp.1-9.
https://search.emarefa.net/detail/BIM-1103397
Modern Language Association (MLA)
Wu, Jinqiu…[et al.]. The Research on Improved Companding Transformation for Reducing PAPR in Underwater Acoustic OFDM Communication System. Discrete Dynamics in Nature and Society No. 2016 (2016), pp.1-9.
https://search.emarefa.net/detail/BIM-1103397
American Medical Association (AMA)
Wu, Jinqiu& Qiao, Gang& Qi, Xiaofei. The Research on Improved Companding Transformation for Reducing PAPR in Underwater Acoustic OFDM Communication System. Discrete Dynamics in Nature and Society. 2016. Vol. 2016, no. 2016, pp.1-9.
https://search.emarefa.net/detail/BIM-1103397
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1103397