A Neighbor Discovery Method Based on Asynchronous Bidirectional Probe

Abstract

A neighbor discovery method based on asynchronous bidirectional detection. In the neighbor discovery method, a period of time is divided into time intervals of equal size, each time interval is called a time slot, and every t consecutive time slots constitute a cycle ; In one cycle, two nodes implement bidirectional detection between nodes through state scheduling of time slots, and then ensure mutual discovery between nodes in multiple cycles; the nodes are neighbors. The present invention is an improvement on the general asynchronous detection method. A small number of active slots are divided into static active slots and dynamic active slots, and a certain change strategy is given to the dynamic active slots. While reducing the energy consumption of device neighbor discovery, it improves The efficiency of neighbor discovery between nodes can improve the service life and life of the device to a certain extent.

Description

technical field [0001] The invention relates to the field of wireless networks, in particular to a neighbor discovery method based on asynchronous bidirectional detection. Background technique [0002] Neighbor discovery refers to the process of discovering and establishing connections between nodes in a wireless network, and is a prerequisite for communication between nodes in the network. In the process of continuous development of wireless sensor networks and wireless communication technologies, neighbor discovery has always been one of the important issues that have attracted widespread attention. In today's multi-user mobile social network, neighbor discovery is the basis of many user interaction application services. [0003] Due to the limitation of high energy consumption of devices in some existing neighbor discovery methods, the discovery delay is increased to a certain extent, and the user experience of application services is reduced. In addition, in mobile sens...

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Problems solved by technology

[0003] Due to the limitation of high energy consumption of devices, some existing neighbor discovery methods increase the discovery delay to a certain extent and reduce the user experience of application services.

In addition, in mobile sensor networks, due to the movement and energy constraints of nodes, some existing neighbor discovery protocols are difficult to implement.

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