New codes from dual BCH codes with applications in Low PAPR OFDM
Dual Bose-Ray-Chaudhuri (BCH) codes, despite their favorable peak to average power ratio (PAPR) properties, have not been used in coded orthogonal frequency division multiplexing (OFDM) systems. This is due to unavailability of a practical decoder and large performance gap to the Shannon limit. In this paper, we propose an advanced approach to solve the aforementioned problems. We construct a new code with favorable PAPR properties based on dual BCH codes and develop the associated maximum a posteriori (MAP) decoding algorithm. By exploiting this code as the frequency domain constituent code in a time-frequency turbo structure, we reduce the gap between the performance and Shannon limit while the bounded PAPR of OFDM symbols is guaranteed. By comparative performance evaluation we illustrate that the performance of this system is comparable with that of capacity approaching codes while it has 7 dB lower PAPR. © 2011 IEEE.
Duke Scholars
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Related Subject Headings
- Networking & Telecommunications
- 4606 Distributed computing and systems software
- 4008 Electrical engineering
- 4006 Communications engineering
- 1005 Communications Technologies
- 0906 Electrical and Electronic Engineering
- 0805 Distributed Computing
Citation
Published In
DOI
ISSN
Publication Date
Volume
Issue
Start / End Page
Related Subject Headings
- Networking & Telecommunications
- 4606 Distributed computing and systems software
- 4008 Electrical engineering
- 4006 Communications engineering
- 1005 Communications Technologies
- 0906 Electrical and Electronic Engineering
- 0805 Distributed Computing