Robustness transmission design method in physical layer service fusion

Abstract

The invention belongs to the field of mobile communications, and in particular relates to a physical layer service fusion communication transmission technology. The invention provides a robustness transmission design method in physical layer service fusion. The method comprises the steps that pre-processing is carried out; a transmission covariance matrix Q0 of a multicast service and a transmission covariance matrix Qc of a confidential service are determined; a rate domain, the optimal transmission covariance matrix and the optimal confidential service transmission covariance matrix are acquired; and transmission processing is carried out in a sending node. According to the invention, the service quality is ensured; the transmission rate of another service is maximized; and the reachable rate domain in the worst case, namely the largest channel error, is acquired.

Description

technical field [0001] The invention belongs to the field of mobile communication, and in particular relates to a physical layer service fusion communication transmission technology. Background technique [0002] 5G communication technology requires high spectral efficiency and high security, thereby promoting the integration of multiple services, such as the integration of confidential services (confidential service) and multicast services (multicast service). The traditional service fusion technology provides different services through different logical channels, and the spectrum efficiency is low. In contrast, the physical layer service fusion technology integrates different services by using the characteristics of physical channels. These services can use the same wireless resources and have high spectrum efficiency. Therefore, it is considered to be a very promising technology. [0003] Multicast services can be realized by sending multicast information. Confidentialit...

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Problems solved by technology

[0005] Aiming at the problem that the existing research on service fusion is basically based on the assumption of perfect channel information, but the channel state information obtained by the sending end is often not perfect in practice, the present invention provides a physical layer service fusion The robust transmission design method maximizes the transmission rate of another service while ensuring the quality of one service, so as to obtain the achievable rate domain under the worst case, that is, the case of the channel error maximum

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