Journal of Beijing University of Posts and Telecommunications

  • EI核心期刊

JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM ›› 2010, Vol. 33 ›› Issue (1): 129-134.doi: 10.13190/jbupt.201001.129.224

• Reports • Previous Articles    

Simulation Research of D-SCCC Based on Underwater Acoustic Communication

GUO Shu-xia1;LIU Bing1;GAO Ying2;HUANG Guo-dong2   

  1. (1.National Key Laboratory of Science and Technology on Unmanned Aerial Vehicles, Northwestern Polytechnical University, Xi’an 710065, China; 2.College of Marine Engineering, Northwestern Polytechnical University, Xi’an 710072, China)
  • Received:1900-01-01 Revised:1900-01-01 Online:2010-02-28 Published:2010-02-28
  • Contact: GUO Shu-xia

Abstract:

The double-serially concatenated convolutional codes (D-SCCC) method applied in underwater acoustic communication system was studied. In view of the acoustic communication’s requirement of high reliability, a new coding method was proposed to improve the reliability of communication through analyzing bit error rate (BER), and a simulation based on a given underwater channel has been made. Simulations show that at the same bit rate DSCCC increases the waterfall area’s steepness of BER compared with SCCC and has 0.5dB coding gain in the BER of 10-5, and D-SCCC improves error-floor of Turbo code’s BER when BER is between 10-4 and 10-5. This can satisfy requirement of high reliability when the underwater acoustic transmits remote measurement and remote-controlled commands.

Key words: underwater acoustic channel, double-serially concatenated convolutional codes, error-floor