An optimization method for multi-user and multi-channel spectrum sensing in cognitive radio networks

A cognitive radio and spectrum sensing technology, which is applied in the field of radio sensing network spectrum optimization, can solve problems such as short transmission delay, and achieve the effect of improving utilization rate, improving channel communication quality, and making information transmission more efficient.

Active Publication Date: 2019-05-03
NANJING UNIV OF POSTS & TELECOMM
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Problems solved by technology

[0005] Technical issues: In cognitive radio networks, the limited number of channels in the radio, the increase in the number of secondary users, and the increase in the amount of data transmission have brought great challenges to the data transmission of secondary users. In multiple secondary users , when the number of channels is limited and the communication of the primary user is not affected, how to optimize the data transmission scheme so that the average data transmission energy consumption of the cognitive users is low and the transmission delay is short is one of the problems in the cooperative allocation of cognitive radio data transmission. one

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  • An optimization method for multi-user and multi-channel spectrum sensing in cognitive radio networks
  • An optimization method for multi-user and multi-channel spectrum sensing in cognitive radio networks

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[0035] Combine below figure 1 The specific implementation of the present invention is described in more detail.

[0036]In the implementation of multi-user multi-channel spectrum sensing optimization method in cognitive radio network, the sensing process, game process, allocation process and transmission process are the four processes.

[0037] Assuming that there are c sensing users, each sensing user transmits a small data to each channel not occupied by the primary user while sensing the channel, and obtains the transmission delay T of the channel transmission process ij , and energy consumption E ij ;Transmission delay T ij Including the transmission delay of sensing user i sensing channel j, energy consumption E ij Including the energy consumption of sensing user i sensing channel j.

[0038] In the specific implementation, according to the sensing process in the previous step, the transmission delay T from the i-th sensing user to the j-th channel sensing process is ...

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Abstract

The present invention provides a multi-user multi-channel spectrum sensing optimization method for a cognitive radio network, which is a multi-user multi-channel spectrum sensing optimization method for a cognitive radio network based on game theory and binary optimal matching. In the cognitive radio network sensing process of the channel, each sensing user calculates and selects a smaller consumption index to reduce the transmission delay and energy consumption in the information transmission process; the bipartite optimal matching algorithm is used to optimize channel selection. The method of the invention can effectively improve the communication quality of the cognitive radio network.

Description

technical field [0001] The invention relates to a spectrum optimization method for a wireless sensing network, which mainly uses a non-cooperative game theory algorithm and an optimal bipartite matching algorithm to optimize the average time delay and average energy consumption of sensing users when multi-sensing users and multiple channels perform data transmission, It belongs to the cross-technical application field of radio communication technology field and game theory. Background technique [0002] Cognitive radio (CR, cognitive radio) is an intelligent communication system that can discover and take advantage of the idle frequency band of the authorized system in time and space. And use the available spectrum in this space, and limit and reduce the occurrence of conflicts. [0003] Non-cooperative game theory means that in a strategic environment, the non-cooperative framework regards the actions of all people as individual actions, that is to say, in a strategic comb...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W16/10H04W28/08H04W72/08
CPCH04W16/10H04W28/08H04W72/54Y02D30/70
Inventor 岳文静蒲昱陈志刘敏陆海亚
Owner NANJING UNIV OF POSTS & TELECOMM
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