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,Schulkin&Marsh和Francois&Garrison 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.
To avoid the disadvantages of high cost and complexity of the underwater acoustic com-munication channel,a simulation method for analyzing the characteristics of underwater acoustic communication networks is developed.The proposed method uses Propagation-Delay-Stage,Receiv-er-Power-Stage and Background-Noise-Stage in OPNET simulation tool to simulate the propagation delay,transmitter power and underwater acoustic noise （underwater acoustic noise contains turbu-lence,shipping,wind driven waves and thermal noise）of underwater acoustic channel,respective-ly.In the OPNET tool,the Propagation-Delay-Stage employs MacKenzie model.The Receiver-Power-Stage employs three propagation loss model,Thorp,Schulkin＆amp;Marsh and Francois＆amp;Garri-son models.In the proposed method,different underwater acoustic channels are simulated when dif-ferent propagation loss models are chosen,and then a suitable underwater acoustic channel is selected according to the simulation results.After the underwater acoustic channel model is selected,the un-derwater acoustic communication network can be simulated with MACAW protocol.Finally,the throughput,bit error rate,packet loss ratio of the underwater acoustic communication network are simulated.Simulation results demonstrate that the proposed simulation method can efficiently simu-late the underwater acoustic communication network.
出处
《东南大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2014年第3期477-481,共5页
Journal of Southeast University：Natural Science Edition
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)
关键词
水声信道
OPNET
仿真
介质访问控制协议
underwater acoustic channel
OPNET simulation
media access control protocol
