A Two-Level Selection Cooperation Method for Improving Transmission Reliability in Clustered Networks
A reliability and network technology, applied in the field of two-level selection and cooperation, can solve the problems of less research on network transmission reliability and the inability to implement transmission method transmission reliability, etc., to achieve the effect of enhancing reliability
Active Publication Date: 2022-07-15
CHONGQING UNIV OF POSTS & TELECOMM
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Problems solved by technology
In the vast majority of clustered wireless sensor networks, the existing literature only focuses on the energy consumption of the network, and there are few studies on the transmission reliability of the network.
In wireless sensor networks, the node configuration is simple, and complex transmission methods cannot be implemented to improve transmission reliability. Therefore, it is urgent to adopt low-complexity and easy-to-implement cooperation methods to improve data transmission reliability according to network characteristics.
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[0030] The embodiments of the present invention are described below through specific specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the drawings provided in the following embodiments are only used to illustrate the basic idea of the present invention in a schematic manner, and the following embodiments and features in the embodiments can be combined with each other without conflict.
[0031] like figure 1 As shown, 100 nodes S with different coordinate positions are randomly distributed in a 100×100 unit square area 1 ,S 2 ,S 3 ,…,S 100 and ba...
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The invention relates to a two-level selection cooperation method for improving transmission reliability in a clustered network, and belongs to the technical field of cooperative communication. The method includes: S1: selecting cluster heads and numbering them in sequence; calculating the channel quality and distance from nodes other than the cluster heads to each cluster head, selecting a cluster head with close distance and good channel quality, and joining the cluster; The whole network is divided into several clusters of different sizes; S2: Two-level selection cooperative transmission. The invention considers the channel quality in the cluster head selection in the clustering network, and reduces the increase of the system interruption probability caused by the node with higher residual energy but poor channel quality becoming the cluster head; , which enhances the reliability of data transmission in the network.
Description
technical field [0001] The invention belongs to the technical field of cooperative communication, and relates to a two-level selection cooperation method for improving transmission reliability in a clustered network. Background technique [0002] In wireless sensor networks, energy efficiency and data transmission reliability are the two major focuses. The wireless sensor network node powered by battery has very limited energy, and it is inconvenient to replace the battery, and the energy cannot be replenished in time. Therefore, energy saving and improving energy efficiency can effectively prolong the life cycle of the network. In large-scale networks, clustering nodes in the network and adopting clustering and hierarchical transmission is a common method to save energy and improve energy efficiency. In the vast majority of clustered wireless sensor networks, the existing literature only focuses on the energy consumption of the network, and there are few studies on the tra...
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IPC IPC(8): H04W40/10H04W40/12H04W40/22H04W40/32H04L45/122
CPCH04W40/10H04W40/12H04W40/22H04W40/32H04L45/126Y02D30/70
Inventor 李敏李青刘冲
Owner CHONGQING UNIV OF POSTS & TELECOMM