Resource scheduling method based on cognitive radio terminal reconfiguration system

A terminal reconfiguration and cognitive wireless technology, applied in the field of communication, can solve problems such as inapplicable CRT terminal reconfiguration, achieve the effect of reducing reconfiguration time, reducing complexity and improving efficiency

Inactive Publication Date: 2014-03-19
XIDIAN UNIV
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AI Technical Summary

Problems solved by technology

[0007] Task clustering method: This method proposes a new metric to classify tasks, considering the execution cost of tasks and the cost of communication between tasks, but this method is limited to task scheduling without priority constraints, not applicable Reconfiguration for CRT terminals

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  • Resource scheduling method based on cognitive radio terminal reconfiguration system
  • Resource scheduling method based on cognitive radio terminal reconfiguration system
  • Resource scheduling method based on cognitive radio terminal reconfiguration system

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Embodiment Construction

[0030] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings.

[0031] refer to figure 1 , the resource scheduling steps of the method of the present invention are as follows:

[0032] Step 1, use a set to represent the system signal processing module.

[0033] Assume that the cognitive wireless terminal reconstruction system has M signal processing modules, and according to the execution order of the signal processing modules, the i-th executed signal processing module is denoted by f i Indicates that the jth executed signal processing module is denoted by f j Indicates that the module set F={f is obtained 1 ,... f i ,... f j ,... f M}, 1≤i

[0034] Step 2. According to the directed acyclic graph theory, construct a set of directed edges describing the data sent by each module.

[0035] The signal processing module f i to the signal processing module f j The amount of data sent is d...

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Abstract

The invention discloses a resource scheduling method based on a cognitive radio terminal reconfiguration system. By utilizing the resource scheduling method, the defects of overhigh computation complexity and low resource scheduling efficiency in the prior art are overcome. The resource scheduling method is implemented through the following steps of: (1) constructing a signal processing module set of the system and a directed edge set for describing a data transmission situation among modules; (2) constructing a directed acyclic graph (DAG) model of the system according to the module set and the directed edge set; (3) defining a stage value for the modules according to the DAG model; (4) acquiring an expense matrix according to parameters of the system, and calculating cluster gains among the modules according to the expense matrix and a data sending quantity among the modules; (5) dividing the module set into a plurality of sub sets according to the cluster gains; and (6) distributing processors to the modules in each state sequentially by calculating the priority level of the processors according to the respective modules and the precursor and subsequent sub sets of the modules. By utilizing the resource scheduling method, the resource scheduling efficiency can be improved, and the reconstruction time of a cognitive radio terminal is shortened.

Description

technical field [0001] The invention belongs to the technical field of communication, relates to cognitive radio resource scheduling, and can be used to improve resource scheduling efficiency of terminal reconfiguration in a cognitive wireless network environment. Background technique [0002] Cognitive radio technology is currently one of the most critical technologies to improve the efficiency of the existing wireless spectrum. This technology enables the radio system to perform environmental perception, historical experience learning, and intelligent result judgment according to changes in the surrounding environment to adapt to changes in system transmission parameters. . [0003] The resource management of the cognitive radio system includes wireless resource management, computing resource management and application resource management. The reconstruction of cognitive wireless terminal CRT mainly involves the reallocation of computing resources and application resource...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W72/12
Inventor 张文柱银幸元郭翠侯丽俊冯成晓王红香刘玉琦郑晶晶
Owner XIDIAN UNIV
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