Opportunity-network full-coverage low-time-delay routing method based on message ferry

A full-coverage, low-latency technology, applied in advanced technology, electrical components, climate sustainability, etc., can solve field redundancy, the active movement path of the ferry node is not optimized enough, and the ferry node cannot perceive the ordinary node without data transmission. and other problems, to achieve the effect of reducing control overhead, improving the success rate of data transmission, and improving routing efficiency

Active Publication Date: 2014-07-23
CHONGQING UNIV OF POSTS & TELECOMM
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Problems solved by technology

[0012] (2) The active movement path of the ferry node is not optimized enough
[0014] (3) Ferry nodes cannot perceive ordinary nodes without data transmission
[0017] In the existing related routing methods, the beacon message broadcast by the ferry node contains the node's location information field. After our in-depth research, we found that the location report function completed by this field can be realized through the wireless ranging mechanism, so this field is Redundant, will bring additional control overhead

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  • Opportunity-network full-coverage low-time-delay routing method based on message ferry
  • Opportunity-network full-coverage low-time-delay routing method based on message ferry
  • Opportunity-network full-coverage low-time-delay routing method based on message ferry

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Embodiment Construction

[0037] A non-limiting embodiment is given below in conjunction with the accompanying drawings to further illustrate the present invention.

[0038] The purpose of the present invention is to propose a full-coverage low-latency routing method for opportunistic networks based on message ferrying. The routing method adopts self-adaptive adjustment of the communication radius of ferry nodes, self-adaptive selection of active movement paths for ferry nodes with the largest number of nodes, and no data transmission. The four new mechanisms of the node actively contacting the ferry node and deleting the location field of the beacon message solve the problems of the existing opportunistic network-related routing method based on message ferry, such as incomplete network coverage, insufficient optimization of the active movement path of the ferry node, and poor perception of the ferry node. There are redundant fields in ordinary nodes and beacon messages that have no data to send, so as ...

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Abstract

The invention provides an opportunity-network full-coverage low-time-delay routing method based on message ferry. The method includes the following steps: during an idle stage, ferry nodes move in a fixed route and periodically broadcasting beacon messages; in a data transmission stage, common nodes contact the ferry nodes and the ferry nodes actively move towards the common nodes; the ferry nodes exchange data with the common nodes; and the ferry nodes return to the fixed route. The routing method achieves effects of eliminating network coverage dead zones, optimizing the active movement path of the ferry nodes, reducing transmission time delay of data packets, improving data transmission success rate, reducing control overhead and improving routing effect.

Description

technical field [0001] The present invention belongs to the field of using opportunistic networks (opportunistic networks) or delay tolerant networks (delay tolerant networks) technology, and particularly relates to a network node equipped with a location information acquisition device, equipped with RSSI (Received Signal Strength Indication, received signal strength indication) function and Opportunity / Delay Tolerant Networks in which Partial Nodes Can Move Autonomously. Background technique [0002] An opportunistic network is a wireless ad hoc network with partial or discontinuous connection topology, which uses the opportunity of encounter (referring to mutual entry into the communication range, the same below) brought by node movement to achieve communication, delay and break tolerance. In some wireless network application fields, due to the influence of the environment and the communication range of nodes, it is impossible to establish a fully connected network topolog...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W40/02
CPCY02D30/70
Inventor 任智邓科任海索建伟刘彩梅陈前斌
Owner CHONGQING UNIV OF POSTS & TELECOMM
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