在仿真部分，扩充了NS2仿真平台上已有的功能模块，从而验证了所提出的自适应门限预切换机制的性能。

For simulation, the existing functional modules on NS2 simulation platform are expanded, so that the performance of the mechanism with adaptive threshold is verified.

youdao

在仿真部分，扩充了NS2仿真平台上已有的功能模块，从而验证了所提出的自适应门限预切换机制的性能。

For simulation, the existing functional modules on NS2 simulation platform are expanded, so that the performance of the mechanism with adaptive threshold is verified.

youdao