A method and system for optimizing cooperative transmission performance based on node behavior
A technology for cooperative transmission and optimization methods, which is applied in transmission systems, radio transmission systems, diversity/multi-antenna systems, etc., and can solve the problems that data cannot effectively reach the target base station and affect the performance of cooperative transmission.
Active Publication Date: 2020-09-15
CHANGCHUN UNIV OF SCI & TECH
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[0004] The purpose of the present invention is to provide a method and system for optimizing the performance of cooperative transmission based on node behavior, so as to solve the problem that node behavior affects the performance of cooperative transmission, resulting in the inability of data to reach the target base station effectively
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[0060] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0061] The purpose of the present invention is to provide a cooperative transmission performance optimization method and system based on node behavior, which can improve the success rate of data packet transmission and the stability of links, thereby improving the transmission efficiency of node data.
[0062] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described...
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The invention discloses a cooperative transmission performance optimization method and system based on node behaviors. The optimization method comprises the steps of obtaining energy consumption and amaximum transmission distance generated when node data transmission is carried out by using a beam forming technology; determining the minimum cooperative node number according to the energy consumption and the maximum transmission distance; constructing a target function; determining a cooperative node set according to the minimum cooperative node number and the target function; determining a cooperative node weight according to the target function; judging whether the node data is transmitted to a target base station or not, if yes, optimizing the beam forming technology according to the cooperative node set and the cooperative node weight, and transmitting the node data by utilizing the optimized beam forming technology; if not, obtaining a data source node of the node data; determining a relay cluster according to the data source node; and transmitting the node data to a target base station according to the relay cluster. By adopting the optimization method and system provided bythe invention, the transmission efficiency of the node data can be improved.
Description
technical field [0001] The present invention relates to the technical field of cooperative transmission, in particular to a method and system for optimizing the performance of cooperative transmission based on node behavior. Background technique [0002] Cooperative transmission realizes data transmission in the way of resource sharing, which can effectively improve the utilization rate of network resources and extend the life cycle of the network. Usually, network access nodes restrict their transmission range due to limited resources, and need to cooperate with other nodes in the network to complete long-distance transmission of sensing data, such as wireless sensor networks, intelligent transportation systems, and underwater acoustic communications. [0003] In the traditional multi-hop cooperative communication method, data transmission needs to pass through untrusted areas, which on the one hand causes the energy consumption of nodes to be unbalanced and increases commu...
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IPC IPC(8): H04B7/0408H04B7/024H04B7/06H04B7/026
CPCH04B7/024H04B7/026H04B7/0408H04B7/0617
Inventor 张婧冯欣雷立孙庚
Owner CHANGCHUN UNIV OF SCI & TECH