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SYSTEM AND METHOD FOR ACHIEVING CONTINUOUS CONNECTIVITY TO AN ACCESS POINT OR GATEWAY IN A WIRELESS NETWORK FOLLOWING AND ON-DEMAND ROUTING PROTOCOL, AND TO PERFORM SMOOTH HANDOFF OF MOBILE TERMINALS BETWEEN FIXED TERMINALS IN THE NETWORK
SYSTEM AND METHOD FOR ACHIEVING CONTINUOUS CONNECTIVITY TO AN ACCESS POINT OR GATEWAY IN A WIRELESS NETWORK FOLLOWING AND ON-DEMAND ROUTING PROTOCOL, AND TO PERFORM SMOOTH HANDOFF OF MOBILE TERMINALS BETWEEN FIXED TERMINALS IN THE NETWORK
A system and method enables an ad-hoc communication network to maintain connectivity between intelligent access points and nodes. The method includes: broadcasting an access point advertisement from a sender node to wireless routers; deciding by the wireless routers whether to use the sender node as a next hop towards the intelligent access point based on routing criterion associated with the wireless routers and contents of the access point advertisement; transmitting a unicast route request from the wireless routers to the intelligent access point; transmitting a unicast route reply from the sender node to the wireless router in response to receiving the unicast route request; storing a route entry associated with the intelligent access point in the wireless router; and periodically broadcasting a hello message from the wireless router to the nodes identifying the route from the wireless router to the intelligent access point using the stored route entry.
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