Ad hoc network technology enables on-the-spot autonomous networking between mobile terminals without support of infrastructure such as base stations or access points. Each wireless terminal acts as a router, and dynamic routing is used to autonomously create communication routes between terminals which cannot communicate directly with one another (multi-hop communication). The robustness, moderate costs and flexibility of ad hoc networks which can automatically address dynamic changes in network topology due to terminals joining, moving or leaving the network, lend this technology to situations such as rescue operations after natural disasters where infrastructure may not be available, intelligent transport systems (ITS), surveillance systems and delivery systems for local information, etc. R&D on platform technology as well as potential applications for ad hoc networks is being conducted.
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