A Neighbor Node Discovery Method Based on the Combination of Active Detection and Passive Listening

A neighbor node discovery, neighbor node technology, applied in the direction of advanced technology, climate sustainability, sustainable communication technology, etc., can solve the problem that the number of neighbor nodes has not been greatly improved, and the neighbor nodes have not been considered, to achieve Effects of energy optimization, energy saving, and faster discovery

Inactive Publication Date: 2019-06-18
SHANGHAI MARITIME UNIVERSITY
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Problems solved by technology

Although this method takes into account the energy efficiency of nodes, it does not take into account the neighbor nodes that cannot be correctly resolved in the MAC layer, so the number of neighbor nodes found has not been greatly improved.

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  • A Neighbor Node Discovery Method Based on the Combination of Active Detection and Passive Listening
  • A Neighbor Node Discovery Method Based on the Combination of Active Detection and Passive Listening
  • A Neighbor Node Discovery Method Based on the Combination of Active Detection and Passive Listening

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[0029] specific implementation plan

[0030] In order to make the purpose and technical solution of the present invention clearer, the technical solution of the present invention will be specifically described below in conjunction with examples.

[0031] figure 1 A flow chart of a neighbor node discovery method in this embodiment is shown in which the active detection based on the physical layer power control is combined with the passive interception at the media access control layer across layers. Such as figure 1 As shown, the method for discovering neighbor nodes based on the cross-layer combination of active detection based on physical layer power control and passive interception at the media access control layer described in the above embodiments should include the following process:

[0032] (1) Discovery and classification of neighboring nodes based on the passive listening of the media access control layer. Analysis, according to the results of the analysis, the nei...

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Abstract

The invention discloses a neighbor node discovering method based on combination of active detecting and passive monitoring, which mainly solves a problem that accurate information of a neighbor node cannot be acquired because received data frames cannot be parsed correctly in passive monitoring, and solves problems of increased interference and aggravated energy consumption, which are caused by high transmission power, between network nodes. Implementation of the method comprises classification for passively monitored neighbor nodes, adjustment for the transmission power of an active detecting node and replying of the neighbor nodes. Based on the neighbor node discovering method disclosed by the invention, the number of discovered neighbor nodes and the neighbor node discovering speed are improved, and the node energy consumption is reduced at the same time.

Description

technical field [0001] The invention relates to the technical field of wireless communication networks, in particular to a neighbor node discovery method in a wireless opportunistic network that combines active detection based on physical layer power control and passive monitoring of a media access control layer across layers. Background technique [0002] Opportunistic networks are also known as sparse Ad Hoc networks, intermittent networks (Intermittently Connected Networks) or delay-tolerant networks (Delay / Disruption Tolerated Networks). It is a time-delay and split-tolerant self-organizing network that does not require a complete path between the source node and the destination node, and uses the encounter opportunities brought about by node movement to realize network communication. In the real world, due to the limitations of the environment, application characteristics, cost and other factors, it is impossible to establish a fully connected network in many applicatio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W40/24H04W48/16
CPCH04W40/246H04W40/248H04W48/16Y02D30/70
Inventor 吴世东姜胜明杨方张凯
Owner SHANGHAI MARITIME UNIVERSITY
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