一种利用网络编码提高物理层安全的无线中继系统

并接方式进行软交换垃圾呼叫限制的实时性和安全性较差,对此采用串接方式接入软交换信令系统。通过对Linux下TCP/IP网络协议栈的地址绑定机制、输入和输出路由机制等分析改造,设计一种软交换信令虚拟引接的技术。测试表明,该技术可以实现对基于TCP、UDP传输信令的透明接入和安全限制;同时,协议栈的改造不对系统正常通信流程产生任何影响。

Wireless Relay System Using Network Coding to Improve Physical Security

The parallel access mode to restrict spam call of soft switch is poor in real-time performance and security.To deal with this problem,this paper takes the serial access mode to soft switch signaling system and designs a virtual access technique for soft switch signaling,which is based on analyses and improvements of address binding and input output routing of TCP/IP protocol stack on the Linux platform.Experiment results indicate that the technique can implement transparent access and secure restriction bas...