Method and system for wireless access to a network by an isolated user

Wireless access to a network 2 by an isolated user 1 includes the isolated user 1 transmitting a wireless signal intended to produce interference at nodes included in a group 3, 4 and 9 of nodes, that have access to the network 2. Upon the interference being detected by a member of one of the groups, and a link established between the isolated user 1 and the member of the group, access to the network 2 is arranged for the isolated user 1. In one method, the isolated user is unlicensed and seeks access to the network via a licensed part of the wireless spectrum.