多媒体传感器网络中数据多宿主传输方法仿真

在多媒体传感器网络中使用传统的传输方法存在丢包率高、稳定性低的问题,提出数据多宿主传输方法。根据多媒体传感器网络的连接情况,对传输终端也就是宿主节点进行定位,并形成对应的传输通道。设置符合该传输环境下的传输协议,通过数据压缩编码和融合封装两个步骤,实现待传输数据的预处理。通过划分传感器节点优先级确定数据传输的先后顺序,同时计算拥塞度量实现数据多宿主传输拥塞控制,最后以传输信道的网络容量分配传输路径,实现多媒体传感器网络的数据多宿主传输。通过仿真可以看出,数据多宿主传输方法比传统方法的丢包率低,且在不稳定的网络环境下抗干扰性能更好。

Simulation of Data Multi-Host Transmission Method in Multimedia Sensor Networks

Traditional transmission methods in multimedia sensor network have high packet loss rate and low sta-bility.In this paper,a data multi-homing transmission method was put forward.According to the connection of mul-timedia sensor network,the transmission terminal or the hosting node was located,and then corresponding transmis-sion channel was formed.After that,the transmission protocol in accordance with the transmission environment was set,and the data were preprocessed through the data compression coding and fusion encapsulation.In addition,the data transmitted sequence was determined by dividing the priority of sensor nodes,and congestion measurement was calculated and thus the congestion control of multi-homing transmission of data was achieved.Finally,the transmis-sion paths were allocated by network capacity of transmission channel.Thus,the multi-homing transmission of data in multimedia sensor networks was realized.According to the simulation,we can see that the packet loss rate of multi-homing transmission method is lower than that of the traditional method.Meanwhile,the proposed method has better anti-jamming performance in unstable network environment.