A scheme of across-multi-network based on ad hoc and its implementation

An across-multi-network strategy based on ad hoc is proposed in this paper. Mobile terminals in the system can shape into self-organized networks, and access to networks such as PSTN, 3G cell-network and Internet via multi-hop routing. The design and implementation of demo system about the scheme are presented. In addition, network formation protocol and multi-hop routing protocol are set forth in detail, multi-network access gateway and multi-mode mobile terminals are design and realized. What is more, performance of the system is also analyzed and simulated. The results show that performance of the system is improved on many aspects such as efficiency of network formation and multi-hop routing finding time.