Mobile user spectrum allocation method based on cuckoo search algorithm

A technology of cuckoo search and spectrum allocation, which is applied in the field of mobile user spectrum allocation based on the cuckoo search algorithm, and can solve the problems of low network throughput and co-channel interference of mobile users.

Active Publication Date: 2018-11-27
EAST CHINA JIAOTONG UNIVERSITY
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Problems solved by technology

However, in actual communication, there are problems of low network throughput and co-channel interference between mobile users in spectrum power allocation, which are unavoidable

Method used

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  • Mobile user spectrum allocation method based on cuckoo search algorithm
  • Mobile user spectrum allocation method based on cuckoo search algorithm
  • Mobile user spectrum allocation method based on cuckoo search algorithm

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Embodiment Construction

[0041] The present invention will be described in further detail below in conjunction with the embodiments and with reference to the accompanying drawings.

[0042] System model: In a communication network, the degree of link interference depends on the size of the interference temperature of the receiving node. The interference of the primary user link mainly comes from the transmitting node of the secondary user in the shared frequency band. Similarly, the interference of the secondary user link comes from the transmitting node of the primary user and the transmitting nodes of other secondary users in the shared frequency band. The size of the interference is determined by The comprehensive influence of the distance of the interference source, the transmit power of the interference source, and the channel gain.

[0043] In the communication network interference model, the transmitting node PR of the primary user communicates with the receiving node PR at the maximum power, a...

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Abstract

The invention discloses a mobile user spectrum allocation method based on a cuckoo search algorithm. For the problem that in spectrum power allocation, network throughput is low, firstly, awareness based on an interference distance is built, and a spectrum power allocation problem is converted to a function optimization problem; maximized network throughput is converted to solving a total data volume completed in maximization available time, a target function is built, a spectrum allocation available is mapped to a position of a cuckoo nest, the cuckoo search algorithm is adopted for solving,finally, spectrum allocation with the network throughput higher than that of a genetic algorithm is obtained, and high secondary user effective channel capacity can be obtained.

Description

technical field [0001] The invention relates to the technical field of wireless communication, in particular to a mobile user spectrum allocation method based on a cuckoo search algorithm. Background technique [0002] Cuckoo search (CUCKOO SERACH) referred to as CS is a new type of intelligent algorithm derived from the parasitic behavior of cuckoo hatching in nature and the principle of levy flight search. It has high performance in exploring the solution space and can flexibly jump out of local extreme values. Moreover, the structure is very simple, the control parameters are less, the adjustment and setting of parameters are convenient, and it is easy to implement. It is widely used in solving nonlinear programming problems. This is a network model in which multiple primary users and multiple secondary users share the same frequency band , under the premise of ensuring the normal communication of the primary user link, by controlling the transmit power of the secondary u...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/08
CPCH04W72/541H04W72/542Y02D30/70
Inventor 丁青锋韦民
Owner EAST CHINA JIAOTONG UNIVERSITY
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