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Control Channel Selection Method for Cognitive Mobile Ad Hoc Networks

A mobile self-organization and network control technology, applied in network topology, network planning, wireless communication, etc., can solve problems such as not considering the activity rules of primary users, and achieve the effect of improving spectrum utilization, making full use of it, and shortening rendezvous time

Active Publication Date: 2019-10-01
CHONGQING UNIV
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  • Claims
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Problems solved by technology

However, in the existing control channel selection based on rendezvous technology, most of the frequency hopping sequences are designed on the premise that the channel is available and unchanged, and the influence of the primary user's activity rules and channel quality on the control channel selection is not considered. Regardless of the frequency hopping sequence design, There is still room for improvement and improvement in indicators such as the average rendezvous time and the maximum rendezvous time

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  • Control Channel Selection Method for Cognitive Mobile Ad Hoc Networks
  • Control Channel Selection Method for Cognitive Mobile Ad Hoc Networks
  • Control Channel Selection Method for Cognitive Mobile Ad Hoc Networks

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Embodiment Construction

[0033] The specific implementation manner and working principle of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0034] From figure 1 It can be seen that a cognitive mobile ad hoc network control channel selection method is performed in the following steps:

[0035] S1: All cognitive users perform spectrum sensing to obtain their potential set of available channels C and the number of available channels M;

[0036] S2: Evaluate and sort the quality of all available channels in the available channel set C according to the attributes of the available channels, and generate an available channel list X;

[0037] combine figure 2 It can be seen that the specific method is,

[0038] S21: Determine the application scenario and the channel requirements of the application scenario according to the available channel quality evaluation standard;

[0039] S22: Using the AHP to determine the subjective weight of the ch...

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Abstract

The invention discloses a control channel selection method of a cognitive mobile ad hoc network. The method comprises the following steps: S1, executing spectrum sensing by all cognitive users to acquire respective potential available channel sets C and available channel numbers M; S2, estimating the quality and sorting all available channels in the available channel sets C to generate an available channel list X; S3, constructing a frequency hopping sequence set Y by using a specific mapping criterion to generate a frequency hopping pattern; S4, executing channel skipping according to the frequency hopping pattern; and running a handshake protocol for interaction; and S5, judging whether the interaction is successful, if so, terminating and completing control channel selection; and otherwise, returning to step S4. The control channel selection method has the beneficial effects that the interaction time is short, the selected control channel has stronger robustness for the liveness of main user, and spectrum holes can be fully utilized to improve the spectral efficiency.

Description

technical field [0001] The invention relates to the technical field of control channel selection, in particular to a control channel selection method for a cognitive mobile ad hoc network. Background technique [0002] As an intelligent spectrum sharing technology, cognitive radio (CR) senses changes in the current communication environment, learns the characteristics of the external environment based on artificial intelligence, and adjusts the working parameters adaptively, so as to access the primary user (primary user, PU) temporarily unused idle channels, thereby effectively improving spectrum utilization. Mobile ad hoc network (MANET) is a wireless ad hoc network that does not need to deploy fixed infrastructure. Integrating cognitive radio technology into MANET network can build and deploy cognitive MANET (CR-MANET) network flexibly and quickly. The CR-MANET network is the extension of cognitive radio technology to MANET. Its wireless spectrum is not fixed, but uses ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W16/14H04W84/18
CPCH04W16/14H04W84/18
Inventor 冯文江唐夲应腾达肖骞包涛涛孔乾坤唐冰蓝
Owner CHONGQING UNIV
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