Research on Self-adjusting OFDM Underwater Acoustic Communication Algorithm for Transmission Rate Maximization

Luo Ya-song; Xu Jiang-hu; Hu Hong-ning; He Jing-bo; Chen Zhan-wei

doi:10.11999/JEIT150440

Volume 37 Issue 12

Jan. 2016

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Article Navigation > Journal of Electronics & Information Technology > 2015 > 37(12): 2872-2876

Luo Ya-song, Xu Jiang-hu, Hu Hong-ning, He Jing-bo, Chen Zhan-wei. Research on Self-adjusting OFDM Underwater Acoustic Communication Algorithm for Transmission Rate Maximization[J]. Journal of Electronics & Information Technology, 2015, 37(12): 2872-2876. doi: 10.11999/JEIT150440

Citation:

Luo Ya-song, Xu Jiang-hu, Hu Hong-ning, He Jing-bo, Chen Zhan-wei. Research on Self-adjusting OFDM Underwater Acoustic Communication Algorithm for Transmission Rate Maximization[J]. Journal of Electronics & Information Technology, 2015, 37(12): 2872-2876. doi: 10.11999/JEIT150440

Citation:

Luo Ya-song, Xu Jiang-hu, Hu Hong-ning, He Jing-bo, Chen Zhan-wei. Research on Self-adjusting OFDM Underwater Acoustic Communication Algorithm for Transmission Rate Maximization[J]. Journal of Electronics & Information Technology, 2015, 37(12): 2872-2876. doi: 10.11999/JEIT150440

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Research on Self-adjusting OFDM Underwater Acoustic Communication Algorithm for Transmission Rate Maximization

doi: 10.11999/JEIT150440

1.
(Electronics Engineering College, Naval Universit of Engineering, Wuhan 430033, China)
2.
(Coach Division of Logistic Department, Navy Qingdao Marine Area, Qingdao 266102, China)

Funds:

The National Natural Science Foundation of China (61101205)

Received Date: 2015-04-15
Rev Recd Date: 2015-08-03
Publish Date: 2015-12-19

Abstract

Abstract

Based on the modeling of transmission rate maximization problem for Orthogonal Frequency Division Multiplexing (OFDM) underwater acoustic communication, the computing amount for water-filling algorithm is reduced reasonably, which realizes rapid assignments for sub-carriers initial energy. To deal with the serious waste of symbol energy existing in the bit assigning algorithm based on fixed threshold, the new greedy algorithm is brought forward, which improves the OFDM transmission rate remarkably with less cost of additional calculation. Results show that the new algorithm behaves favorable properties of transmission rate and Bit Error Rate (BER) even with incomplete channel estimation information suitable for time-variant underwater acoustic channel.
- Underwater acoustic communication,
- Orthogonal Frequency Division Multiplexing (OFDM),
- Self- adjusting,
- Water-filling algorithm

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References(21)

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