Improved Parallel Combinatory Spread Spectrum Underwater Acoustic Communication Based on Gold Codes

LI Yan; JIA Ning; HUANG Jianchun; LIU Biao; GUO Shengming

doi:10.11999/JEIT211447

Volume 44 Issue 6

Jun. 2022

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Article Navigation > Journal of Electronics & Information Technology > 2022 > 44(6): 1937-1946

LI Yan, JIA Ning, HUANG Jianchun, LIU Biao, GUO Shengming. Improved Parallel Combinatory Spread Spectrum Underwater Acoustic Communication Based on Gold Codes[J]. Journal of Electronics & Information Technology, 2022, 44(6): 1937-1946. doi: 10.11999/JEIT211447

Citation:

LI Yan, JIA Ning, HUANG Jianchun, LIU Biao, GUO Shengming. Improved Parallel Combinatory Spread Spectrum Underwater Acoustic Communication Based on Gold Codes[J]. Journal of Electronics & Information Technology, 2022, 44(6): 1937-1946. doi: 10.11999/JEIT211447

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Improved Parallel Combinatory Spread Spectrum Underwater Acoustic Communication Based on Gold Codes

doi: 10.11999/JEIT211447

1.
Key Laboratory of Underwater Acoustic Environment, IACAS, Beijing 100190, China
2.
Institute of Acoustics, Chinese Academy of Sciences, Beijing 100190, China
3.
University of Chinese Academy of Sciences, Beijing 100049, China

Funds: Youth Innovation Promotion Association of Chinese Academy of Sciences (2018028, 2019025)

Received Date: 2021-12-06
Accepted Date: 2022-03-03
Rev Recd Date: 2022-02-25

Available Online: 2022-03-16

Publish Date: 2022-06-21

Abstract

Abstract

When Mapping Sequences Spread Spectrum (MSSS) method is applied to the Parallel Combinatory Spread Spectrum (PCSS) UnderWater Acoustic (UWA) communication, the peak-to-mean envelope power ratio of the output signal is reduced, and hence the communication performance is improved. However, if Gold codes are selected as the spread sequence, due to the property of Gold codes, there will be a pseudo correlation peak when the mapping signal is correlated with the spread sequence set. Hence, the communication performance is degraded seriously. In order to overcome the performance degradation, two new schemes are proposed in this paper, namely the Parallel Combinatory Spread Spectrum based on Phase Differences of Correlation Peaks (PDCP-PCSS) and the Interleaved Parallel Combinatory Spread Spectrum (IPCSS) respectively. PDCP-PCSS can effectively identify the pseudo correlation peak and eliminate it. IPCSS is able to generate signal without the pseudo correlation peak by adding the interleavers in the transmitter. Simulation and sea trail results show that the performance of two proposed schemes in the paper outperform the Conventional Parallel Combinatory Spread Spectrum (CPCSS). Among them, the performance of PDCP-PCSS is the best. However it is only suitable for the combination of three Gold codes while IPCSS has less limitation in usage.
- Spread spectrum underwater acoustic communication,
- Parallel Combinatory Spread Spectrum (PCSS),
- Gold codes,
- Pseudo correlation peak,
- Interleaver

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References(17)

References

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