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Joint spectrum sensing and resource allocation method and apparatus based on game optimization

A technology of resource allocation and joint spectrum, applied in the field of joint spectrum sensing and resource allocation based on game optimization, can solve problems such as main user network interference, and achieve the effect of improving network performance

Active Publication Date: 2018-08-03
SOUTHEAST UNIV
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  • Application Information

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Problems solved by technology

Due to the random access of the slave users on the authorized channel, the slave users will introduce more interference to the master user network

Method used

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  • Joint spectrum sensing and resource allocation method and apparatus based on game optimization
  • Joint spectrum sensing and resource allocation method and apparatus based on game optimization
  • Joint spectrum sensing and resource allocation method and apparatus based on game optimization

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Embodiment Construction

[0039]The present invention will be further explained below in conjunction with the accompanying drawings and specific embodiments.

[0040] Such as figure 1 As shown, a method for joint spectrum sensing and resource allocation based on game optimization disclosed in the embodiment of the present invention mainly includes the following steps:

[0041] (1) Perform energy value detection for the secondary user and perform hard decision estimation for the primary user state.

[0042] (2) For a given partition combination, the secondary user calculates its own access probability, and at the same time, the data fusion center calculates the access benefit of each user and feeds it back to the secondary user; the secondary user is updated according to the calculated access probability and access benefit Partition combinations are performed until the partition combination iteratively converges. Denote the secondary network group η={1,2,...,N}, where n∈η is a secondary network, inclu...

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Abstract

The invention relates to the technical field of OFDM cognitive wireless networks, and discloses a joint spectrum sensing and resource allocation method and apparatus based on game optimization. The method comprises the following steps: performing, by a slave user, energy value detection on a master user, and generating a hard decision value of a state of the master user; for a given partition combination, calculating, by the slave user, an own access probability, meanwhile, calculating, by a data fusion center, access benefits of all slave users in the partition combination and feeding back the access benefits to the slave users, and determining, by the salve user, whether to update the partition combination according to the access probability and the access benefit; and selecting an alliance to perform access according to the hard decision condition of the slave user on the state of the master user in the alliances of the partition combination, and maximizing the access benefit of thealliance. According to the joint spectrum sensing and resource allocation method and apparatus disclosed by the invention, the access fairness of the users and the partition iteration willingness ofthe users are fully considered, the access benefit of the actual alliance is maximized by making full use of channel time slot resources, and the channel and power resources in the network are effectively used.

Description

technical field [0001] The present invention relates to the technical field of OFDM cognitive wireless networks, in particular to a method and device for joint spectrum sensing and resource allocation based on game optimization. Background technique [0002] In the 5G system, cognitive radio technology is proposed to deal with the problem of scarce spectrum resources. Among them, when the interference of the primary user is limited, it is particularly important to solve the problem of spectrum sensing and resource allocation of the secondary user. [0003] Generally speaking, there are three ways for the slave user to access the channel authorized by the master user: (1) interwave mode; (2) underlay mode; (3) overlay mode. In the interwave mode, the secondary user can use the channel during the period when the primary user does not access the authorized channel. In the underlay mode, the secondary user can share the authorized channel with the primary user, as long as the ...

Claims

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Application Information

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IPC IPC(8): H04W72/04H04W16/14H04W72/08
CPCH04W16/14H04W72/0446H04W72/0453H04W72/0473H04W72/54Y02D30/70
Inventor 宋铁成胡静朱翰宬吴俊夏玮玮燕锋沈连丰
Owner SOUTHEAST UNIV
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