An Initial Networking and Routing Method in Inter-frequency Wireless Sensor Networks

Abstract

The invention discloses an initial networking and routing method for a pilot-frequency wireless sensor network. In the existence of a plurality of pilot-frequency base stations, ordinary nodes simultaneously realize initial networking and routing through polling, listening and information interaction to finish self-organization running of the network without manual interference, and then an effective and quick way is provided for networking ordinary nodes and pilot-frequency base stations. The initial routing method uses a reverse routing method, and sensing data in the network supports base station aggregation. Through combining the polling and listening with the reverse routing, the initial networking for the wireless sensor network in the existence of a plurality of pilot-frequency base stations is effectively realized; and meanwhile, the route building is organically combined with the initial node networking, and the generated route can guarantee the subsequent sensing data gathering and the command issuing of the base stations to the ordinary nodes; the routing route is updated dynamically according to network topology change to support the mobile wireless sensor network.

Description

technical field [0001] The invention belongs to the technical field of wireless networks, and specifically relates to an initial networking and routing method in a different-frequency wireless sensor network, which is applied to a wireless sensor network with multiple operating frequencies and placed randomly in a monitoring area. Background technique [0002] A wireless sensor network is a kind of wireless multi-hop network composed of a group of sensor nodes and base stations. The sensor nodes are responsible for collecting information in the area, and transmit the data to the base station through multi-hop; the base station is responsible for analyzing and processing the data from each node in the network. [0003] In sensor network applications, sensor nodes are usually placed in places without infrastructure, the location of sensor nodes cannot be pre-determined, and the mutual neighbor relationship between nodes cannot be known in advance. For example, a large number ...

AI Technical Summary

Problems solved by technology

The main disadvantage of this method is that before the clustering initialization, it needs to obtain the weight of the nodes, and requires each node to diffuse its own information into the network and save all other node information. A large amount of computing and communication overhead leads to a large clustering overhead.

In the process of the cluster head completing the aggregation and forwarding functions, the overhead of clustering will also cause its energy consumption to be too fast and die too quickly, resulting in the instability of the network topology

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