AD-HOC NETWORK, USER NODE, MANAGEMENT SERVER, COMMUNICATION METHOD AND PROGRAM

摘要

Provided is an ad hoc network that can ensure band(s) and redundant path(s) without cost increase. The ad hoc network comprises: a gateway connectable to a predetermined server via an external network; and a plurality of user nodes, constituting an ad hoc network along with the gateway and each transmitting data to the predetermined server via the gateway. Among the user nodes, at least one user node having means for establishing connection to the predetermined server via the external network can participate as a second gateway in the ad hoc network. Based on a predetermined rule, another user node among the plurality of user nodes selects the gateway or the second gateway and transmits data to the predetermined server.