Adaptive gateway discovery method and gateway

Abstract

The invention discloses a self-adapting gateway finding method and a gateway, comprising that: the gateway adjusts survival hop number of a gateway information broadcast package for burdening the self-information according to the self service ability information at fixed periods, and encapsulates the survival hop number information to the gateway information broadcast package, then broadcasts thegateway information broadcast package to the wireless multi-hop network; source nodes which receives the gateway information broadcast package, selects one gateway for communicating with other network according to the gateway access information carried by the gateway information broadcast package; the source node which does not receive the gateway information broadcast package broadcasts the gateway request information to the adjacent nodes, and regards the gateway for burdening the access information identification for receiving the first gateway reply message as the gateway to communicate with other network. In the invention, the gateway dynamically adjusts the survival hop number of the self gateway information broadcast package according to the self service ability, causing the gateway with stronger service ability to serve more nodes, thereby increasing the resource utilization of the system.

Description

technical field [0001] The invention relates to mobile communication technology, in particular to an adaptive gateway (GW) discovery method and a gateway in a heterogeneous network and a wireless multi-hop ad hoc network. Background technique [0002] With the rapid development of wireless network technology, heterogeneous network has received great attention, especially the fusion of wireless multi-hop ad hoc network and other networks has become a new research field. Each node in the wireless multi-hop ad hoc network can send and receive signals as a router, and communicate directly with one or more peer nodes in the wireless multi-hop ad hoc network. When the nodes in the wireless multi-hop adhoc network communicate with the nodes of other networks in heterogeneous networks, it must be realized through a gateway (GW) that can connect the two networks. Therefore, how to find a GW that can connect to other networks, that is, how to discover a GW, is one of the key technolo...

AI Technical Summary

Problems solved by technology

Although the above-mentioned on-demand GW discovery method can greatly reduce the system overhead when there are fewer source nodes or the source nodes are closer to the GW, as the number of source nodes increases or the distance between the source nodes and the GW increase, the system overhead grows extremely rapidly

Moreover, when this on-demand GW discovery method is adopted, the establishment time of the path between the source node and the GW is long, and the fast discovery of the GW cannot be realized.

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