Resource allocation method for electric power wireless private network based on cognitive radio

A cognitive radio and wireless private network technology, applied in the field of network resource allocation, can solve the problems of frequent spectrum occupation conflicts and switching, avoid frequent spectrum occupation conflicts and switching problems, ensure spectrum efficiency and system capacity, and ensure stability and reliability effects

CN109348487BActive Publication Date: 2021-09-07STATE GRID CORP OF CHINA +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2021-09-07

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Abstract

The present invention provides a cognitive radio-based power wireless private network resource allocation method, the method includes the following steps: S1. Each SU user periodically perceives the position of the spectrum hole and the size of the spectrum in the spectrum environment of the location; S2 .Establish the resource allocation model R of the electric power wireless private network: S3. Transform the resource allocation into power allocation and subcarrier group allocation according to the established electric power wireless private network resource allocation model R, and perform network resource allocation according to the subcarrier group and optimal power; The impact of time-varying spectrum resources can be considered in the resource allocation of electric power wireless private network, so as to effectively avoid frequent spectrum occupation conflicts and handover problems, thereby ensuring the stability and reliability of users accessing wireless networks, and effectively ensuring spectrum efficiency and system capacity.
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Description

technical field

[0001] The present invention relates to a network resource allocation method, in particular to a cognitive radio-based power wireless private network resource allocation method. Background technique

[0002] The electric power wireless private network is one of the key development directions of the power grid in the future. Due to the rapid development of wireless communication technology, the existing wireless spectrum resources are limited and it is difficult to meet the needs of wireless private networks for spectrum resources. At present, most wireless spectrum resources are continuously allocated to various communication technologies, and there are a large number of discrete spectrum fragments, and the spectrum has not been fully utilized. Cognitive Radio (Cognitive Radio) came into being. The idea is that the SU Secondary User intelligently selects the discrete spectrum (spectrum hole) that occupies the authorized frequency band of the Primary User (PU...

Examples

Embodiment Construction

[0029] Below in conjunction with accompanying drawing, the present invention is described in further detail:

[0030] A cognitive radio-based power wireless private network resource allocation method provided by the present invention includes a PU base station, a SU base station, multiple PU users and multiple SU users, and the PU users access the power wireless private network through the PU base station. SU users access the wireless private network through the SU base station;

[0031] The method comprises the steps of:

[0032] S1. Each SU user periodically perceives the position of the spectrum hole and the size of the spectrum in the spectrum environment of the location;

[0033] S2. Establish a resource allocation model R for electric power wireless private network:

[0034]

[0035]

[0036]

[0037] Among them, R is the system transmission rate, i is the i-th SU user, i=1,2,3,...,m, Q={q 1 ,...,q i ,...,q m} is the rate requirement set of SU users, m is...