A Collaboration-Based Oriented Ad Hoc Neighbor Discovery Method

Abstract

The invention discloses a cooperation-based directional ad hoc network neighbor discovery method, which belongs to the technical field of wireless communication. In the method of the present invention, when a node observes a conflict, it means that there are multiple neighbors in the beam range selected by the current time slot, and rewards are given to the node; and the information of the neighbors found in the neighbor discovery process is used to calculate the location where the potential neighbor is located. Beam numbering to realize cooperation between nodes. Each time slot node randomly selects the sending and receiving mode, selects a beam communication according to the beam probability distribution, and then updates the probability distribution of the beam according to the conflict occurrence and the stored potential neighbor information, so that the beam with conflict or potential neighbor is selected in the next time slot. The probability. Although the existing method considers the impact of conflict, it solves the problem that the information obtained from the neighbor discovery process is not fully utilized, resulting in low efficiency of neighbor discovery. The invention can be applied to the fields of military and the like.

Description

technical field [0001] The invention belongs to the technical field of wireless communication, and in particular relates to a method for directional ad hoc network neighbor discovery. Background technique [0002] The nodes in the directional ad hoc network are equipped with directional antennas, which will bring advantages such as increasing the spatial reuse rate of the network, reducing interference and reducing the probability of being eavesdropped, but it increases the difficulty of neighbor discovery. Neighbor discovery refers to the process that a node establishes contact with one-hop neighbors without knowing which nodes are adjacent to itself and the locations of these nodes. It is an important step in networking. Due to the narrow beam width of directional antennas, nodes equipped with directional antennas need to meet two conditions if they want to find each other. One is that the beams of the nodes are aligned with each other, and the other is that the nodes are ...

AI Technical Summary

Problems solved by technology

Although the existing methods consider the impact of conflicts, they do not make full use of some information obtained from the neighbor discovery process and ignore the cooperation with discovered neighbor nodes, resulting in low neighbor discovery efficiency.

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