Power distribution method for maximizing safety energy efficiency in non-orthogonal multiple access system

A technology of non-orthogonal multiple access and distribution method, applied in the field of power distribution scheme, can solve the problems of eavesdropping on useful information and only considering
CN109996264AActive Publication Date: 2019-07-09RES & DEV INST OF NORTHWESTERN POLYTECHNICAL UNIV IN SHENZHEN +1
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
RES & DEV INST OF NORTHWESTERN POLYTECHNICAL UNIV IN SHENZHEN
Publication Date
2019-07-09

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Abstract

The invention provides a power distribution method for maximizing safety energy efficiency in a non-orthogonal multiple access system.A NOMA system with a function of eavesdropper wiretapping useful information is provided, meanwhile, physical layer safety and 5G green communication requirements are considered; safety energy efficiency SEE is defined as the ratio of the safety and the rate of theNOMA system to the total consumed power, then the power distribution factor of each legal user and the total power distribution factor of the system are designed in an optimized mode, an optimal powerdistribution scheme is sought, and SEE maximization of the system is achieved.
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Description

technical field

[0001] The invention relates to a power allocation scheme in a non-orthogonal multiple access (NOMA) system. Background technique

[0002] With the rapid development of mobile communication technology, the demand for mobile services is also increasing rapidly, resulting in increasingly tight spectrum resources. Therefore, it is necessary to study new multiple access technologies that can support more user connections, higher security, higher spectral efficiency and energy efficiency.

[0003] NOMA technology is a promising multiple access technology for 5G wireless communication systems. In the traditional Orthogonal Multiple Access (OMA) technology, a single resource block in a given domain is allocated to only one user, while the NOMA technology allows multiple users to share the entire time-frequency resource block and achieve multiplexing in the power domain , and use the successive interference cancellation (Successive Interference Cancellation, SIC) m...

Claims

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