基于移动Agent平台的多媒体无线情景仿真

在无线多媒体通信系统中,视频信源在发送端按照一定的编码方式进行编码,形成视频帧,然后在网络层和传输层封装成IP数据包,经过无线信道传输到达接收端,在接收端进行解包和恢复,得到视频帧,再形成重建后的视频流。在此过程中,无线信道的传输特性会影响到视频的传输质量。文中在利用Agent平台的基础上,综合NS2仿真工具,建立研究多媒体信息在无线网络中的传输平台。仿真结果表明,由于无线信道特性的不理想,在接收端恢复视频信息与视频信源相比较,会出现一定的失真

Multimedia Wireless Scenario Simulation Platform Based on Mobile Agent

In wireless multimedia wireless communication system, video source at the sending end is encoded by a coding method to form a video frame, encapsulated into IP packets in the network layer and the transport layer, and then sent through the wireless channel to the receiving end for package solution and recovery at the receiver to obtain the video frame to form the reconstructed video stream. In this process, transmission quality of the transmission char- acteristics of the wireless channel affects the video. A multimedia information transmission in wireless network platform is proposed based on the Agent platform with integrated NS2 simulation tools. The simulation results show that the re- stored video information at the receiving end may be distorted compared to video source due to the fact that the charac- teristics of wireless channel is not ideal.