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Wireless sensor network code distribution method based on multiple umbrella-shaped paths

A wireless sensor network and multi-path technology, which is applied in the field of wireless sensor network code distribution based on umbrella multi-path, can solve the problem of low image transmission efficiency, expand the image receiving range, ensure reliability, and avoid message collisions Effect

Active Publication Date: 2018-03-09
SUN YAT SEN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The present invention provides a wireless sensor network code distribution method based on umbrella multipath in order to solve the technical defect of low image transmission efficiency existing in the prior art

Method used

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  • Wireless sensor network code distribution method based on multiple umbrella-shaped paths
  • Wireless sensor network code distribution method based on multiple umbrella-shaped paths
  • Wireless sensor network code distribution method based on multiple umbrella-shaped paths

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Embodiment 1

[0035] The technical scheme of the present invention is: adopting a wireless sensor network code distribution method based on umbrella multi-path interference-free multi-local transmission, including two-stage strategies, namely, umbrella multi-path establishment phase strategy and interference-free multi-local transmission Mechanism strategy, such as figure 1 As shown, they will be explained separately below.

[0036] 1. Umbrella multi-path establishment phase strategy

[0037] 1. Umbrella multi-path establishment phase strategy, including: seed node selection, information interaction establishment path.

[0038] At this stage, the seed node is selected first, based on the principle: select a network edge node located on the opposite corner of the source node in the network as the first-level seed node, and the second-level and third-level seed nodes should be located at two adjacent corners of the source node. Selected from the edge nodes of the network at figure 2 (a)(b)(c) are...

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Abstract

The invention provides a wireless sensor network code distribution method based on multiple umbrella-shaped paths. The wireless sensor network code distribution method has the following advantages that 1, umbrella-shaped multi-routing paths are established, the space reuse rate is improved, rapid mirror image distribution at a follow-up stage is facilitated, and the distribution efficiency is improved; 2, a mirror image receiving range is widened in a 'multi-receiving and single-forwarding' pseudo-route transmission mode provided with a retransmission mechanism, and the reliability of the paths is ensured; 3, the local transmission relation which is not affected by hidden terminals is formed based on neighbor exploration and a competition subscription theory, message collision is avoided,and the code distribution time is effectively shortened.

Description

Technical field [0001] The present invention relates to the technical field of wireless sensor networks, and more specifically, to a wireless sensor network code distribution method based on umbrella multipath. Background technique [0002] In wireless sensor networks, the deployment of nodes has the characteristics of large numbers and scattered spatial locations. Some application scenarios are relatively harsh. After the nodes are deployed, users need to update the software code mirroring after new network function requirements are proposed. The traditional The manual wired programming method has the disadvantages of high labor cost and difficulty in meeting demand. In this context, the wireless channel is used as a medium to distribute and upgrade code mirroring in a single-hop and multi-hop manner, that is, a code distribution protocol that uses mirroring to update, which can effectively solve the above problems. [0003] The traditional code distribution protocol is divided i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/08H04L1/18H04W40/02H04W84/18
CPCH04L1/188H04L67/06H04L67/1095H04W40/02H04W84/18
Inventor 黄晓洪诗钢保延翔
Owner SUN YAT SEN UNIV
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