请教个OPNET仿真移动IP的问题

采用移动节点的模型是wlan_wkstn_adv，固定节点模型是wlan_ethernet_slip4_adv,都是OPNET11.5中的移动IPv6仿真模型，链路带宽2M，从仿真情况来看，当信源产生速率在40kbps以上时，丢包率很高，甚至达到50%左右
请教一下各位同学，这是什么原因呢？
谢谢

Try, and try again~~
1. What if the mobile node is not moving?
2. What if you increase the link bandwidth?
3. What if the traffic arrives at a lower rate?
4. What if you increase the Tx power?
...
Try as many 'what-if' as possible. This is where simulation shows its strength~~

谢谢。
这几个方法还真是都试验过，现在已经设定节点不动，不管增加带宽，还是提高发射功率，都没有明显改善；如果数据率降低，丢包率会下降，但是数据率太低不满足我们的需求啊

At which layer do you observe the packet loss? At which node do you observe the packet loss?  
I notice that you include the infrastructure in your scenario. I wonder if you configure it as a L3 router or merely an L2 AP. I presume that there's a fix-lined host in your network. If you employ routing, is there any problem with routing settings?
Read the DES log to see if there's any warning on your configuration.
The final means is to employ ODB. Trace a dropped packet, to convince at which node and at which layer, or at a certain phase of the wireless pipeline (L1), the packet is dropped. Narrow down the place of problem. All details lie in the C code. You won't miss it.

谢谢指点，我再按照你说的多试验一下。