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Wireless transmission method and network

A wireless transmission network and wireless transmission technology, applied in the field of wireless transmission methods and networks, can solve the problems of node energy consumption, retransmission, etc., and achieve the effects of reducing sleep delay, improving link quality, and enhancing received signal strength

Active Publication Date: 2019-04-12
STATE GRID CORP OF CHINA +2
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Problems solved by technology

However, these two scheduling strategies are point-to-point data transmission, which can easily lead to retransmission when the channel is very unstable. At the same time, the existing pipeline transmission protocol requires nodes to maintain network status (for example, the wake-up time of neighbor nodes , routing status information, etc.), which will consume a lot of energy for nodes

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  • Wireless transmission method and network
  • Wireless transmission method and network
  • Wireless transmission method and network

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Embodiment 1

[0055] A wireless transmission method based on concurrent transmission and sleep scheduling, the wireless transmission method comprising:

[0056] Step 1: When the network is initialized, first run the partition algorithm, set the partition number for each node according to the partition threshold α, and partition the entire network according to the partition number. Nodes with the same partition number are divided into the same partition, and the partition number The odd-numbered partition is set as the transmission partition, and the transmission partition with the partition number i is b_i; the partition with the even partition number is set as the backup partition, and the backup partition with the partition number i is b'_i; the partition number i is positive integer;

[0057] In this embodiment, the optimal partition threshold α is -5.

[0058] like figure 1 It is a strip wireless sensor network model with unreliable links, and dots represent sensor nodes. The dot a r...

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Abstract

The invention belongs to the technical field of wireless communications and particularly relates to a wireless transmission method and a network. The wireless transmission method is characterized in that a wireless transmission network is partitioned, different partitions are respectively arranged as a transmission partition and a standby partition, different sleep scheduling strategies are divided for each partition by adopting a sleep scheduling mechanism; in the data transmission stage, nodes in the same partition adopt a probability forwarding mechanism to select a proper node for concurrent transmission in the partition; and the data is transmitted from the partition where an initial node is located until an end node successfully receives the data. By adoption of the method, low energy consumption and low delay of data transmission can be achieved on the strip wireless sensor networks. The method is particularly suitable for application to the strip wireless sensor networks needing low delay and low energy consumption.

Description

Technical field: [0001] The invention belongs to the technical field of wireless communication, and in particular relates to a wireless transmission method and a network. Background technique: [0002] Strip wireless sensor networks (SWSNs) are usually deployed in narrow but long strip areas for real-time monitoring and data collection, such as gas monitoring in coal mines, where the tunnels are only a few meters wide but tens of kilometers long. Sensor nodes usually operate with a low duty cycle, and the nodes are only kept active for a short period of time to transmit and receive data. For this reason, the sending node needs to wait a long time until the receiving node becomes active before data transmission, which results in a sleep delay. In SWSNs, the accumulated sleep delay will lead to long end-to-end data transmission time. [0003] In order to shorten the long transmission delay caused by node sleep in SWSNs, pipeline scheduling technology is proposed. Pipeline s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W24/02H04W72/04H04W72/12H04W84/18
CPCH04W24/02H04W72/0446H04W72/1221H04W84/18
Inventor 任帅宋纯贺王忠锋卢岩曾鹏于同伟吴蒙马欣彤李桐王刚
Owner STATE GRID CORP OF CHINA
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