水声通信信道中的OPNET建模与仿真

发布时间：2019-04-25 21:59

【摘要】：针对水声通信网络信道的实现开销大、复杂性高的特点,提出了一种能够仿真分析水声通信网络的有效方法.该方法分别使用OPNET中的Propagation-Delay-Stage,Receiver-Power-Stage和Background-Noise-Stage三个工具来仿真水声信道中的传播延迟、发射机功率和水声噪声(水声噪声包括紊流、船运、风波和热噪声).其中,Propagation-Delay-Stage采用MacKenzie速度模型;Receiver-Power-Stage中有Thorp,SchulkinMarsh和FrancoisGarrison 3种传播损失模型.在该方法中,首先仿真比较了取不同传播损失模型时的水声信道,然后根据仿真结果选择一个合适的水声信道,并采用MACAW协议来仿真水声通信网络.最后,通过仿真实验对整个水声通信网络的吞吐量、误码率、丢包率进行了分析.实验结果表明,采用该方法能够有效地仿真水声通信网络.
[Abstract]:In view of the high overhead and complexity of underwater acoustic communication network, an effective method for simulation and analysis of underwater acoustic communication network is proposed. Three tools, Propagation-Delay-Stage,Receiver-Power-Stage and Background-Noise-Stage in OPNET, are used to simulate propagation delay, transmitter power and underwater acoustic noise (including turbulence, shipping, wind and thermal noise) in the underwater acoustic channel. Among them, Propagation-Delay-Stage adopts MacKenzie velocity model, and there are three propagation loss models in Receiver-Power-Stage: Thorp,SchulkinMarsh and FrancoisGarrison. In this method, firstly, the underwater acoustic channels with different propagation loss models are simulated and compared, then a suitable underwater acoustic channel is selected according to the simulation results, and the MACAW protocol is used to simulate the underwater acoustic communication network. Finally, the throughput, bit error rate and packet loss rate of the whole underwater acoustic communication network are analyzed by simulation experiments. The experimental results show that this method can effectively simulate the underwater acoustic communication network.
【作者单位】：东南大学教育部水声重点实验室;东南大学移动通信国家重点实验室;
【基金】：国家自然科学基金资助项目(60872073,60975017,51075068) 教育部博士点专项基金资助项目(20110092130004)
【分类号】：TN929.3

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