A system and method for providing security to a wireless network by using a mobile node's location as a parameter for deciding if access is to be given to the node. The system and method employ access points, wireless routers and mobile nodes, each including at least one transceiver adapted to transmit...http://www.google.com/patents/US20040028017?utm_source=gb-gplus-sharePatent US20040028017 - System and method for determining physical location of a node in a wireless network during an authentication check of the node