水纹振动传感网络通信同步技术的研究与仿真  

Research and Simulation of Communication Synchronization Technology of Sensor Network under Water Wave Vibration

作　　者：匡凤飞[1] 

机构地区：[1]福建师范大学闽南科技学院,福建泉州362332

出　　处：《计算机仿真》2014年第6期287-290,366,共5页Computer Simulation

摘　　要：研究水纹振动干扰下传感网络的通信同步问题。传感信号进入水下会迅速被水吸收,吸收量成随机性无法约束建模。传播速度随着吸收量变化会发生不定变化。传统的传感信号同步方法都是基于电磁波信道,同步过程仅仅考虑了信号本身的延迟,而不考虑外界干扰,造成在水下干扰环境下,同步失败。为提高水下通信精度,提出了一种基于全耦合同步算法的水纹振动传感网络同步通信方法。建立水纹振动下的传感网络BTS协议,建立BTS协议的过程中,设置水下传感通信数据包传递速度不是固定值,同时随机选取的两个通信节点之间的频率偏移也是不固定的。在BTS协议中,随机选择的两个通信节点之间的时间偏移。利用全耦合同步方法,完成该网络的同步通信。实验结果表明,利用改进算法进行水纹振动传感网络同步通信,能够有效降低通信过程中的同步误差,提高网络通信的准确率,从而提高了水纹振动干扰下,传感网络的应用范围和有效范围。This paper studied the problem of communication synchronization of sensor network under water wave vibration disturbance. Sensor signal entered into underwater will be quickly absorbed, and the absorbed dose is random and cannot be modeled with constraint. Accompany with the changing of absorbed dose, the propagation velocity changes. The traditional sensor signal synchronized methods are based on electromagnetic wave channel and in the synchronization process only the delay of the signal itself is considered, regardless of outside interference, which causes the failure of synchronization in the underwater disturbance environment. In order to improve the precision of communication, we proposed a synchronous communication method for sensor network under water wave vibration based on unity coupling synchronization algorithm. The BTS protocol of sensor network under watermarks vibration was established. In BTS protocol establishment process, the transmission speed of underwater sensor communication packets was set to an unfixed value. While the frequency deviation between the two communicating nodes selected randomly was also unfixed. In BTS protocol, the time migration between two communicating nodes was selected randomly. Finally, the unity coupling synchronization method was used to complete the synchronous communication of this network. Experimental results show that the improved algorithm used in synchronous communication of sensor network under water wave vibration can effectively reduce the synchronization error in the communication process, and improve the accuracy of network communication, so as to increase the applied range and effective range of sensor network under the water wave vibration interference.

关 键 词：水纹振动 传感网络 通信平台 同步传输 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]