The application of LDPC code in underwater acoustic wireless communications

  • Authors:

  • Yuxiang Li;Guolong Liang;Guangpu Zha;Jin Fu

  • Affiliations:

  • College of Science, Harbin Engineering University, China and National Laboratory of Underwater Acoustic Technology, Harbin Engineering University, China;National Laboratory of Underwater Acoustic Technology, Harbin Engineering University, China;National Laboratory of Underwater Acoustic Technology, Harbin Engineering University, China;National Laboratory of Underwater Acoustic Technology, Harbin Engineering University, China

  • Venue:
  • WiCOM'09 Proceedings of the 5th International Conference on Wireless communications, networking and mobile computing
  • Year:
  • 2009

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Abstract

LDPC code is used in the underwater wireless communication system. Using regular (3,6) LDPC code, with LLR BP decoding algorithm, a simulation is completed in the underwater channel of constant speed of sound. The results show that: the bit error rate of 10-5 can be achieved at the signal to noise ratio of about 2. 8dB, which indicates the high-performance transmission under lower signal to noise ratio may be realized.