The Design And Implement Of INSIGNIA Protocol In OPNET

Self-organizing network is a peer-to-peer network which is useful in some special situations. The network nodes which use wireless communication technology can not only directly communicate with each other but also act as relays of its neighbors which are in their direct communication range. Through packet forwarding, these nodes can realize inter-node communication. As the self-organizing network is greatly different from the traditional networks, the theoretical basis for the Internet, as well as many research achievements of the traditional networks are not applicable to the self-organizing network. The characteristics of the self-organizing network, such as dynamic topology, limited bandwidth resources, specific scenes and the environment, make the protocols and technologies of the traditional fixed networks and cellular mobile communication networks difficult to be directly applied to the self-organizing network. The architecture, QoS guarantee and the application of such issues are complicated and difficult to achieve.The purpose of this thesis is to research into how to provide good QoS support for self-organizing networks. OPNET is professional in providing simulation environment for self-organizing networks. By referring to some achievements of self-organizing network research, we have studied and realized INSIGNIA protocol in OPNET, which is considered as a good QoS guarantee mechanism for self-organizing networks. Through testing and comparing collected results, the thesis validate that INSIGNIA is effective to guarantee QoS for self-organizing networks.Firstly, the thesis introduced the characteristics of the self-organizing network and pointed out the reason that the RSVP protocol, which is used in traditional fixed networks, is not applied to the self-organizing network. Next, we introduced how to design and realize the INSIGNIA signaling system in OPNET, including how to design and realize the INSIGNIA process module. Finally, through testing and comparing collected results, the thesis validate that INSIGNIA is effective to guarantee QoS for self-organizing networks. In the final part of the thesis, we point out future directions of our research.