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Neighbor discovery method for mobile ad hoc network based on directional antenna

A mobile ad hoc network, directional antenna technology, applied in wireless communication, network topology, network data management and other directions, can solve the problem of low efficiency of neighbor discovery, reduce the time of active scanning and detection, reduce time, and improve efficiency. Effect

Inactive Publication Date: 2017-05-31
NORTHWESTERN POLYTECHNICAL UNIV
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Problems solved by technology

[0007] In order to overcome the shortcomings of low neighbor discovery efficiency in existing network neighbor discovery methods, the present invention provides a neighbor discovery method for directional antenna-oriented mobile ad hoc networks

Method used

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  • Neighbor discovery method for mobile ad hoc network based on directional antenna
  • Neighbor discovery method for mobile ad hoc network based on directional antenna
  • Neighbor discovery method for mobile ad hoc network based on directional antenna

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Embodiment Construction

[0040] refer to Figure 1-9 . The specific steps of the neighbor discovery method of the directional antenna-oriented mobile ad hoc network of the present invention are as follows:

[0041] Step 1, time slot initialization. Assuming that the number of nodes is N, and the beamwidth of the directional antenna configured for each node is θ, a complete scan is given by The time slots of each sector are divided into two types according to the function, one is the detection time slot, which is used to discover neighbors and establish a neighbor relationship through a three-way handshake; the other is the interaction time slot, which is used to communicate with Newly discovered neighbors exchange neighbor table information. During initialization, each time slot has three working states: sending state, receiving state and idle state, and these three states are represented by Tx, Rx, and Idle in turn. The number of time slots in the neighbor detection phase of each sector is 3, co...

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Abstract

The invention discloses a neighbor discovery method for a mobile ad hoc network based on a directional antenna. By adoption of the neighbor discovery method, the technical problem of low neighbor discovery efficiency of the existing network neighbor discovery method is solved. The technical scheme is as follows: in every neighbor scanning process, each node discovers a certain number of neighbors, so the node can use the existing neighbor information to accelerate the neighbor discovery process. As the existing neighbor information is used, neighbor tables are continuously exchanged, compared with the method in the background art, the method has the advantage that the existing information is fully used, and whether a neighbor relationship exists is directly judged by an algorithm, therefore the time of active scanning detection is shortened. Compared with the background art, the method has the advantages that the neighbor discovery time is greatly shortened, and the neighbor discovery efficiency is improved.

Description

technical field [0001] The invention relates to a network neighbor discovery method, in particular to a neighbor discovery method for a directional antenna-oriented mobile ad hoc network. Background technique [0002] With the development of antenna technology, more and more directional antennas are applied to mobile ad hoc networks. In the mobile ad hoc network based on directional antenna, the neighbor node discovery process is the most important link in the network initialization process. Usually, directional antenna networking is used in mobile ad hoc networks. According to the working mode of transmission and reception, it can be divided into four modes, omni-directional transmit and omni-directional receive (omni-directional transmit and omni-directional receive, OO), omni-directional transmit Directional receive (omni-directional transmit and directional receive, OD), directional transmit omnidirectional receive (directional transmit and omni-directional receive, DO)...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W8/00H04W40/24H04W84/18
CPCH04W8/005H04W40/24H04W84/18
Inventor 洪亮陈旿石磊曹奕燕熊张鑫邓雅倩金鑫
Owner NORTHWESTERN POLYTECHNICAL UNIV
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