Cognitive radio electric dynamic smart frequency spectrum access method for unknown environmental model characteristics
A technology of cognitive radio and unknown environment, which is applied in the field of distributed non-central cognitive wireless network communication and wireless communication, which can solve the problems of unreliable communication, authorized user interference, etc.
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
specific Embodiment approach 1
[0026] Specific implementation mode one: combine figure 1 To illustrate this embodiment, the specific steps of the cognitive radio dynamic intelligent spectrum access method for unknown environment model characteristics described in this embodiment are as follows:
[0027] Step A, establish the environmental model of the channels occupied by authorized users: each channel is independent of each other, and the situation that each channel is occupied by authorized users obeys the Markov (MARKOV) transfer process;
[0028] Step B. Each secondary user establishes the channel transfer model of the secondary user with respect to the authorized user through statistical learning method: the sampling number r is obtained by solving the central limit theorem i , through channel i at r i The sampling state of sub-sampling establishes maximum likelihood function, then maximum likelihood function is solved, solves the conversion probability of the Markov transfer process that each channel...
specific Embodiment approach 2
[0049] Embodiment 2: This embodiment is a further description of step C in Embodiment 1:
[0050] Step C1, at time t, the secondary user uses the belief matrix Λ(t)=[λ 1 (t),...,λ M (t)]
[0051] Λ ( t + 1 ) = Δ Γ ( Λ ( t ) | a , θ ) ) = Δ [ λ 1 ( t + 1 ) , . . . , λ M ( t + 1 ) ]
[0052] λ j ( ...
specific Embodiment approach 3
[0066] Specific embodiment three: this embodiment is a further description of step C in specific embodiment one, and the specific steps of step C are completed by the following steps:
[0067] Step C 1. At time t, based on the given perception and decision history, the available probability of channel i is the belief matrix:
[0068] Ω ( t + 1 ) = Δ [ w 1 ( t + 1 ) , . . . , w N ( t + 1 ) ] = Δ Γ ( Ω ( t ) | a ...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com