文章摘要
李莉,路晨贺,王桐,谷传欣,梁洪全.基于WOSS的NS-Miracle水声信道模拟方法扩展[J].声学技术,2021,40(1):21~28
基于WOSS的NS-Miracle水声信道模拟方法扩展
Extension of simulation method for underwater acoustic network channel based on NS-Miracle and WOSS
投稿时间:2019-10-16  修订日期:2020-03-28
DOI:10.16300/j.cnki.1000-3630.2021.01.004
中文关键词: 水声传感器网络信道  网络仿真器  NS-Miracle仿真系统  世界海洋仿真系统(WOSS)  Bellhop声射线模型
英文关键词: underwater acoustic network channel  Network Simulator 2 (NS2)  NS-Miracle simulation system  world ocean simulation system(WOSS)  Bellhop acoustic ray model
基金项目:辽宁省自然科学基金指导计划(2019-ZD-0075)、辽宁省教育厅科学研究项目(LJ2020022)
作者单位E-mail
李莉 沈阳化工大学计算机学院, 辽宁沈阳 110142
通信网信息传输与分发技术重点实验室, 河北石家庄 05000 
Lily_jilin@163.com 
路晨贺 沈阳化工大学计算机学院, 辽宁沈阳 110142  
王桐 沈阳化工大学计算机学院, 辽宁沈阳 110142  
谷传欣 北京信息科技大学传感技术研究中心, 北京 100631  
梁洪全 通信网信息传输与分发技术重点实验室, 河北石家庄 05000  
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中文摘要:
      将世界海洋仿真系统(World Ocean Simulation System,WOSS)与声射线模型Bellhop结合并引入海洋噪声经验公式对NS-Miracle仿真系统的水声传输信道模拟方法进行扩展。为了验证扩展后的仿真系统,实验采用了基于水声信道特征经验模型、Bellhop射线模型及WOSS结合Bellhop射线模型的3种仿真方法对5个节点集中式拓扑结构的水下传感器网络进行了计算机仿真。结果表明,在相同的网络环境中,利用Bellhop信道仿真模型的两组实验的平均吞吐量、平均延时非常接近,而利用经验信道模型的第一组仿真得到的平均吞吐量和延时与后两组数据的差别稍大,三者的平均误包率非常接近。同时实验仿真了3个不同海域相同结构水下传感器网络的运行情况,分析引入WOSS后对仿真结果的影响。结果显示:在不同海域引入WOSS的系统仿真结果比未引入WOSS的系统仿真结果更具有实时动态性,扩展后的NS2/NS-Miracle仿真系统能够更准确地模拟实际水声网络的相关特性。另外,实验还利用扩展后的系统对ALOHA-CS、CSMA/CA和DACAP三种MAC协议进行了仿真和分析,结果显示,CSMA/CA协议相较于其他两种协议更适合集中式结构的水下传感器网络。
英文摘要:
      The method combining the world ocean simulation system (WOSS) with the Bellhop acoustic ray model and introducing the empirical formula of ocean noise is an extension of the network channel simulation method for NS-Miracle simulation system. In order to verify the extended simulation system, three simulation methods of underwater sensor network with five nodes centralized topological structure, which are based on the empirical model of underwater acoustic channel characteristics, the Bellhop ray model and the WOSS combined with Bellhop ray model respectively, are adopted in the experiment. The results show that in the same network environment, the average throughput and average delay of two sets of experiments with the Bellhop channel simulation model are very close, however, the average throughput and delay obtained by the first set of simulations with the empirical channel model are slightly different from the latter two sets of data; and the average packet error rate of the three sets is very close. The operations of the same underwater sensor network structure in three different sea areas are simulated, and the influence of WOSS on the system simulation results is analyzed. The results show that the simulation data of the system with WOSS in different sea areas are more dynamic than those without WOSS. The extended NS2/NS-Miracle simulation system can more accurately simulate the relevant characteristics of the actual underwater acoustic network. In addition, three MAC protocols of ALOHA-CS, CSMA/CA and DACAP are simulated and analyzed by the extended system. The results show that the CSMA/CA protocol is more suitable for centralized underwater sensor networks than the other two protocols.
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