基于QualNet的无线网络教学平台设计

摘要

For the limitations of the traditional wired teaching network,the wireless network has rapid developement in re⁃cent years,but its communication is easy to be interfered by the external electromagnetic interference,and it has suffered from the development bottleneck due to fast update and large investment of its equipments. The network simulation technology is the efficient approach to solve the above problems. The QualNet software is used to simulate the teaching platform. The functions of QualNet map loading and QualNet compiling are used to implement the specific network protocol. The integrated strategy of Matlab and QualNet simulation platforms is adopted to simulate the physical layer. The WiMAX network protocol and system output re⁃sults were simulated through the QualNet platform. The performance of the wireless network is analyzed based on simulation results.%针对传统有线教学网络的局限性，无线网络近些年得到了迅速的发展，然而其通信容易受到外界的电磁干扰且设备更新快、投资大成为其发展瓶颈，采用网络仿真技术是研究解决以上问题的有效途径。采用QualNet软件模拟教学平台，利用QualNet地图加载和QualNet编译等功能实现网络的具体协议，同时采用Matlab与QualNet仿真平台联合的策略，在仿真平台实现物理层的仿真。最后通过QualNet平台针对WiMAX网络协议和系统输出结果进行仿真实验，基于仿真结果分析了无线网络的性能。