华中科技大学学报（自然科学版）2013，Vol.41Issue(3)：20-24,5.
基于MDAPSK的OFDM水声通信研究
Research on OFDM underwater communication based on MDAPSK
摘要
Abstract
A transmission based on multilevel differential amplitude and phase-shift keying (MDAPSK) and orthogonal frequency division multiplexing (OFDM) was proposed, which was used in underwater acoustic channel and ensured availability and reliability in high-bit-rate underwater wireless communication. After describing the schemes of MDAPSK modulation, the application in the OFDM based underwater communication was on a deep research. The bit error rate performance was compared using DAPSK, amplitude and phase-shift keying (APSK), quadrature amplitude modulation (QAM) and differential fhase shift keying (DPSK) multilevel modulation in simulation and pool experimentation. The results show that the OFDM based underwater communication system using 16DAPSK modulation without any error-correcting codes has the lowest bit-error-rate, and due to no using pilots to estimate the channel, which has the highest transfer rate. The results validate MDAPSK modulation has a better performance in multilevel modulation communication.关键词
水声通信/正交频分复用/差分幅度相移键控/高速率通信/高阶调制/误比特率Key words
underwater communication/orthogonal frequency division multiplexing/differential amplitude and phase-shift keying/high-bit-rate communication/multilevel modulation/bit-error-rate分类
通用工业技术引用本文复制引用
殷敬伟,王驰,潘争荣,张钰珩..基于MDAPSK的OFDM水声通信研究[J].华中科技大学学报（自然科学版）,2013,41(3):20-24,5.基金项目
国家自然科学基金资助项目(51179034,60802060) （51179034,60802060）
黑龙江省自然科学基金资助项目(F201109) （F201109）
上海交通大学海洋工程国家重点实验室开放课题(批准号:1007). （批准号:1007）
