Route establishing method

Abstract

The invention relates to a method for building routing, which comprises: broadcasting routing request grouping by a source node, selecting a reverse route with the minimum routing cost value from a receiving node to a sending node according to the hop routing cost value by the node which receives routing request grouping, updating the request grouping routing cost value, then, transmitting the routing request grouping until a destination node receives the routing request grouping, sending routing response grouping by the destination node along the reverse route, selecting a forward route withthe minimum routing cost value from the sending node to the receiving node according to the hop routing cost value by the node which receives the routing response grouping, updating response groupingrouting cost value, then transmitting the routing response grouping unit the source node receives the routing response grouping, and sending service grouping by the source node along the forward route. The method has the advantages that the node energy consumption is small, the throughput is high, the transmission collision of the service grouping is little, delay and grouping loss rate is low, and the like, and the energy efficiency and the transmission efficiency of the network can be effectively improved.

Description

Routing establishment method technical field The invention relates to a routing method suitable for a wireless sensor network, in particular to a routing establishment method. Background technique Wireless sensor network (WirelessSensorNetwork) is a network form that does not need a fixed network as a support, especially suitable for military battlefields, intelligent transportation, environmental monitoring, space exploration and other fields. A wireless sensor network consists of one or more aggregation nodes and a large number of sensor nodes scattered in a certain area. A large number of sensor nodes are randomly distributed in the entire observed area, forming a network through self-organization, cooperatively sensing, collecting, Processing and Publishing Information. After preliminary processing of the detected information, it is transmitted to the aggregation node in the form of multi-hop relay, and then reaches the monitoring center where the end user is located ...

AI Technical Summary

Problems solved by technology

At present, the routing method of the prior art only considers the influence of the hop factor when performing routing selection at the network layer

Studies have shown that wireless sensor network channel competition is fierce, and the retransmission and large delay of service packets caused by network channel competition will lead to additional node energy consumption, lower throughput and higher packet loss rate, thus making Low energy efficiency and transmission efficiency

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