Router and packet forwarding method thereof

Abstract

The invention discloses a router and a packet forwarding method thereof. The router comprises a node density calculating module, a transmission radius calculating module, an adjacent node detecting module, a forwarding node detecting module and a forwarding node selecting module, wherein the node density calculating module is used for calculating and storing network node density in a storage network; the transmission radius calculating module is used for calculating the maximum transmission radius of one node and storing the maximum transmission radius to the node; and the adjacent node detecting module is used for detecting the adjacent nodes in the maximum transmission radius of the node and storing the transmission distance from the adjacent nodes to the node. In the router and the packet forwarding method thereof, the forwarding node range is determined by adopting the optimum transmission radius and the maximum transmission radius, and the interruption and abnormality of communication caused by communication empty is effectively avoided by a surface traversal technology. Furthermore, in the invention, the utilization ratio of node energy is improved, so that the service lives of the node and the network are prolonged.

Description

technical field [0001] The invention relates to a router and a packet forwarding method thereof, in particular to a router used in a wireless sensor network and a packet forwarding method thereof. Background technique [0002] There are many types of sensors in wireless sensor networks, which can detect various phenomena in the surrounding environment, including earthquake, electromagnetic, temperature, humidity, noise, light intensity, pressure, soil composition, size, speed and direction of moving objects. Micro-sensing technology and wireless networking technology based on MEMS (Micro-Electro-Mechanical System) have given broad application prospects for wireless sensor networks. These potential application fields can be summarized as: military, aviation, anti-terrorism, explosion-proof, disaster relief, environment, medical treatment, health care, home furnishing, industry, commerce and other fields. [0003] In the communication process of the existing wireless sensor n...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a router and its packet forwarding method in order to overcome the defect that the greedy forwarding method in the prior art is easy to encounter communication holes and the selection strategy of the next hop node is too simple to cause the energy consumption of the node is too simple method, so as to effectively avoid communication holes and improve energy utilization

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