Patent ID: 7403506

Claim:
A handoff method for a communication network including a plurality of fixed nodes attached to a router connected to at least to one external network, and at least one mobile node associated with a current fixed node, the handoff method comprising: detecting, by at least one of potential fixed nodes, movement of a mobile node in a service area overlapped with a service area of the current fixed node; preparing a handoff of the mobile node from the current fixed node to the at least one of potential fixed nodes upon detecting the movement of the mobile node; deciding, at the mobile node, whether to handoff to one of the potential fixed nodes as a target fixed node; and performing, at the mobile node, the handoff from the current fixed node to the target fixed node, wherein each of the fixed nodes communicates with neighbor fixed nodes to support the handoff of the mobile node and monitors neighbor channels by using a dedicated reception module to detect movement of the mobile node.