Inter-frame interleaved Bi-SOVA alogrithm for underwater acoustic communication

Huaidong Tang*, Min Zhu, Yanbo Wu, Lijun Xu, Zeping Xing

*此作品的通讯作者

科研成果: 书/报告/会议事项章节会议稿件同行评审

摘要

For divergence of the adaptive DFE leading to loss of data frames and affecting the performance of Turbo decoding in harsh UAC (Underwater Acoustic Communication) channel, inter-frame interleaved Bi-SOVA decoding algorithm was proposed. Inter-frame interleaved Bi-SOVA algorithm encodes and decodes the whole data packet (28 frames) to correct the lost frames, since it can distribute error bits randomly. For inter-frame interleaved Bi-SOVA decoding algorithm leading to large data storage and intolerable decoding delay, sliding window decoding technology and the golden prime interleaver are adopted to optimize data storage, meanwhile DMA technology of ADSP-21160 is applied to optimize decoding delay. According to the result of practical experiment, under the same size of data packet, inter-frame interleaved Bi-SOVA, compared to classical Bi-SOVA, doesn't increase data storage and decoding delay, meanwhile improve the decoding performance greatly. And it will correct 20% error frames under the best conditions.

源语言英语
主期刊名2012 2nd International Conference on Consumer Electronics, Communications and Networks, CECNet 2012 - Proceedings
1865-1869
页数5
DOI
出版状态已出版 - 2012
已对外发布
活动2012 2nd International Conference on Consumer Electronics, Communications and Networks, CECNet 2012 - Three Gorges, 中国
期限: 21 4月 201223 4月 2012

出版系列

姓名2012 2nd International Conference on Consumer Electronics, Communications and Networks, CECNet 2012 - Proceedings

会议

会议2012 2nd International Conference on Consumer Electronics, Communications and Networks, CECNet 2012
国家/地区中国
Three Gorges
时期21/04/1223/04/12

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