Cooperative positioning method and system based on RIS assistance

According to the RIS assistance-based cooperative positioning method and system and the storage medium provided by the invention, the received signals, meeting the preset transmission protocol, of different links are acquired, the channel parameters are estimated according to the received signals, a...

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Bibliographic Details
Main Authors LI LIYAN, ZHAO MINGMIN, LI SHAOBIAO, ZHAO MINJIAN, CHENG QIANRU
Format Patent
LanguageChinese
English
Published 25.03.2022
Subjects
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
WIRELESS COMMUNICATIONS NETWORKS
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Summary:According to the RIS assistance-based cooperative positioning method and system and the storage medium provided by the invention, the received signals, meeting the preset transmission protocol, of different links are acquired, the channel parameters are estimated according to the received signals, and the optimization problem of the reconfigurable intelligent surface RIS phase parameters is constructed by using the covariance estimation theory according to the estimated channel parameters, so that the RIS assistance-based cooperative positioning is realized. And solving an optimization problem through a BCD algorithm, outputting RIS phase configuration parameters, adjusting RIS phase configuration according to the RIS phase configuration parameters, repeatedly executing the previous steps until the optimization problem converges, and outputting position information. Therefore, in the method provided by the invention, efficient transmitted beam forming is realized, the accuracy of user positioning is improved,
Bibliography:Application Number: CN202111357795