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Method for improving performance of cognition wireless network

A technology for cognitive wireless network and performance, applied in the field of cognitive radio system, can solve problems such as occupation, and achieve the effect of avoiding unavailability, improving performance, and improving throughput

Active Publication Date: 2014-11-19
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But they have a common shortcoming that each secondary user is a secondary user with only one receiver. Whenever a secondary user perceives an available channel, it starts to occupy and transmit, and ignores the occupation of subsequent channels. Empty situation

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  • Method for improving performance of cognition wireless network
  • Method for improving performance of cognition wireless network
  • Method for improving performance of cognition wireless network

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Experimental program
Comparison scheme
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Embodiment 1

[0037] Embodiment 1: as Figure 1-2 As shown, a method for improving the performance of a cognitive wireless network, first establishes a channel allocation frame according to a cognitive radio network with Np primary users and Ns secondary users, and obtains the allocation frame matrix; then each secondary user according to The channel allocation frame matrix assigns Np channel number sequences to be detected to sense the channel in parallel; then each secondary user calculates the throughput of each secondary user according to the column where it detects the idle channel for the first time in a detection cycle Finally, calculate the total throughput of the cognitive wireless network according to the throughput obtained by each secondary user.

[0038] The concrete steps of described method are as follows:

[0039] Step1. Construct channel allocation frame matrix:

[0040] According to a cognitive radio network with Np primary users and Ns secondary users, a channel allocat...

Embodiment 2

[0053] Embodiment 2: as Figure 1-2 As shown, a method for improving the performance of a cognitive wireless network, first establishes a channel allocation frame according to a cognitive radio network with Np primary users and Ns secondary users, and obtains the allocation frame matrix; then each secondary user according to The channel allocation frame matrix assigns Np channel number sequences to be detected to sense the channel in parallel; then each secondary user calculates the throughput of each secondary user according to the column where it detects the idle channel for the first time in a detection cycle Finally, calculate the total throughput of the cognitive wireless network according to the throughput obtained by each secondary user.

[0054] The concrete steps of described method are as follows:

[0055] Step1. Construct channel allocation frame matrix:

[0056] According to a cognitive radio network with Np primary users and Ns secondary users, a channel allocat...

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Abstract

The invention relates to a method for improving performance of a cognition wireless network, and belongs to the field of cognition wireless systems. The method comprises the following steps: firstly, according to the cognition wireless network owning Np main users and Ns secondary users, establishing channel allocation frames to obtain an allocation frame matrix; then parallelly perceiving channels according to number sequences, of Np channels to be detected, assigned through the channel allocation frame matrix by each secondary user; then calculating the throughput of each secondary user according to the column where an idle channel detected in the first time in a detection period is located by each secondary user; finally calculating the total throughput of the cognition wireless network according to the throughput obtained by each secondary user. According to the method, the throughput of the network is improved; the condition that more secondary users have the chance of transmission is further ensured, that is the performance of the network is further improved.

Description

technical field [0001] The invention relates to a method for improving the performance of a cognitive wireless network, belonging to the field of cognitive radio systems. Background technique [0002] We know that wireless spectrum resources are allocated uniformly by the government. With the gradual informatization of society and the rapid development of wireless communication technology, spectrum resources are becoming increasingly tight; on the other hand, the average utilization rate of a large number of allocated spectrums is currently low, and there is a lot of room for improvement. In order to improve the utilization of spectrum resources, cognitive radio technology is proposed. [0003] In the existing cognitive radio technology, there are various attempts and methods to improve the performance of cognitive radio. For example, in terms of enhanced spectrum sensing technology, in order to improve the efficiency of spectrum detection, many different cooperative spectr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W24/02
Inventor 邵玉斌余超杜庆治龙华
Owner KUNMING UNIV OF SCI & TECH