Performance Analysis of TCM Coded OFDM System in Underwater Acoustic Channel

被引：0
作者：
Zhou, Feng [1 ]
Qiao, Gang [1 ]
Su, Jun [1 ]
机构：
[1] Harbin Engn Univ, Coll Underwater Acoust Engn, Harbin 150001, Peoples R China
来源：
2008 4TH INTERNATIONAL CONFERENCE ON WIRELESS COMMUNICATIONS, NETWORKING AND MOBILE COMPUTING, VOLS 1-31 | 2008年
关键词：
Trellis Coded Modulation (TCM); underwater acoustic (UWA) channel; orthogonal frequency division multiplexing (OFDM);
D O I：
暂无
中图分类号：
TN [电子技术、通信技术];
学科分类号：
0809 ;
摘要：
the main characteristics of underwater acoustic (UWA) channel are Narrow bandwidth, strong interference caused by multi-path and severe noise. At the some time, these disadvantages have been always obstructed the development of high speed and Fidelity underwater data transmission. This paper discusses the performance of integration of Trellis-coded modulation (TCM) and OFDM; furthermore, this transmission mode can solve the problems of the bandwidth efficiency and reliability effectively in UWA communication. The theoretical analysis and application of TCM based on OFDM in UWA system are introduced in detail. Simulation results are given in the end. It is proved that this method has a further 3dB coding gain over the non-coded QPSK, so the performance of UWA communication has been improved significantly.
引用
收藏
页码：914 / 917
页数：4
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