Routing Method for Mobile Agents in Wireless Sensor Networks

Abstract

The invention discloses a routing method of a mobile agent for a wireless sensor network, which comprises the steps that a Sink node sends an in-grid mobile agent to a cluster head node of a grid to which the Sink node belongs; the cluster head node of the grid to which the Sink node belongs receives the in-grid mobile agent, stores the in-grid mobile agent and stores a serial number of the grid to which the Sink node belongs into a packet structure of the in-grid mobile agent; the cluster head node of the grid to which the Sink node belongs forwards the in-grid mobile agent to four neighbor cluster head nodes staying at the horizontal and vertical directions; each neighbor cluster head node receiving the in-grid mobile agent forwards the in-grid mobile agent according to a horizontal or vertical diffusion direction on the basis of a comparison result of a serial number of a grid to which the neighbor cluster head node belongs and the serial number of the grid to which the Sink node belongs in the in-grid mobile agent. According to the invention, the ID of the grid to which each cluster head node belongs is compared with the ID of the grid to which the Sink node belongs, an appropriate geographic diffusion direction is selected to forward the in-grid mobile agent, thus the energy consumption of the network can be greatly reduced.

Description

technical field [0001] The invention relates to the technical field of wireless sensor networks, in particular to a routing method for a mobile agent of a wireless sensor network. Background technique [0002] In most application scenarios of WSNs, a large number of cheap sensor nodes with certain data sensing capabilities and sensing radius will be deployed near the monitoring area, and they will be distributed into a static network in a regular or irregular manner. Because the sensor nodes do not have the support of wireless infrastructure, and are often scattered in geographical environments with unknown natural conditions, harsh, unattended, or in enemy-occupied areas, the batteries are often not removable or replaceable. Therefore, one of the main design goals of WSNs is to extend the working life of the entire network as much as possible while reducing the energy consumption of the network as much as possible. In order to reduce energy consumption, it is necessary to ...

AI Technical Summary

Problems solved by technology

[0003] In the C / S model, each network node sends management information to the Sink node separately, which is easy to form a large-scale "surge" of network traffic and conflicts between the sending and receiving of data packets, resulting in the loss and retransmission of data packets and the increase of queuing time. lead to a huge increase in network energy consumption

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