Information theoretical performance limits of single-carrier underwater acoustic systems
Information theoretical performance limits of single-carrier underwater acoustic systems
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DOI：
10.1049/iet-com.2014.0083
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发表时间：
2014-10
期刊：
影响因子：
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通讯作者：
Hatef Nouri;M. Uysal;E. Panayirci;H. Şenol
中科院分区：
文献类型：
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作者：
Hatef Nouri;M. Uysal;E. Panayirci;H. Şenol
在这项研究中，作者调查的点对点单载波声学系统的性能在频率选择性水下信道与符号间干扰的信息理论的限制。在稀疏和频率选择性莱斯衰落信道和非白相关高斯环境噪声的假设下，推导出信道容量的表达式，并证明了信道参数的依赖性，如重要抽头的数量，位置和功率延迟曲线，以及环境参数，如距离，温度，盐度，压力和深度。然后，作者使用这个表达式来确定最佳的载波频率，输入信令和带宽的容量最大化。
In this study, the authors investigate the information theoretical limits on the performance of point-to-point single-carrier acoustic systems over frequency-selective underwater channels with intersymbol interference. Under the assumptions of sparse and frequency-selective Rician fading channel and non-white correlated Gaussian ambient noise, the authors derive an expression for channel capacity and demonstrate the dependency on channel parameters such as the number, location and power delay profile of significant taps, as well as environmental parameters such as distance, temperature, salinity, pressure and depth. Then, the authors use this expression to determine the optimal carrier frequency, input signalling and bandwidth for capacity maximisation.