Design and Implementation of Channel Coding for Underwater Acoustic System

摘要：

Underwater acoustic channel is a typical high bit error rate (BER) wireless channel. It is characterized by poor communication quality and high propagation delay.Based on comparing and analyzing the performances of RS code,convolutional code,Turbo code,and RA code,a RA coding based underwater acoustic channel coding scheme is proposed in this paper. The results of Matlab-based simulations show that the coding scheme can get a 100 times,or even more, performance improvement.In order to accelerate RA coding,aiming at the random mapping process of RA coding,based on the minimum sum algorithm,a lookup table based circuit design for fast iteration is introduced. Then,the experiments to test the RA coding are carried out in different channel environments,including underwater acoustic test platform and harbor. The results show that the coding scheme reduces the BER 38 times in the underwater acoustic test platform,increases the correct packet rate from 18.92% to 72.45% in the harbor.

关键词： underwater acoustic communication channel coding RA minimum sum algorithm

作者: Lanjun Liu Youhua Wang Li Li Xiaotong Zhang Jianguo Wang

作者单位: School of Information Engineering,University of Science and Technology Beijing,Beijing,China Geng Dan Institute,Beijing University of Technology,Beijing,China College of Engineering,Ocean University of China,Qingdao,China

会议类型: 国际会议

会议名称: 2009 IEEE 8th International Conference on ASIC(第八届IEEE国际专用集成电路大会)

会议地点: 长沙

会议语种:英文

页码: 497-500

在线出版日期: 2009-10-20（万方平台首次上网日期，不代表论文的发表时间）