Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Multi-relay-selection and power distribution method based on system interrupt probability

A technology of system interruption and distribution method, applied in power management, wireless communication, electrical components, etc., can solve problems such as high computational complexity and poor real-time performance, and achieve prolonging survival time, reducing computational complexity, and avoiding optimal power. effect of assignment

Active Publication Date: 2014-11-26
NANJING UNIV OF POSTS & TELECOMM
View PDF2 Cites 15 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Technical problem: The present invention provides a sub-optimal, low-complexity multi-relay selection and power allocation method based on the system relay probability, aiming at the high computational complexity and poor real-time performance of the optimal relay selection method

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Multi-relay-selection and power distribution method based on system interrupt probability
  • Multi-relay-selection and power distribution method based on system interrupt probability
  • Multi-relay-selection and power distribution method based on system interrupt probability

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0034] The present invention will be further described below in conjunction with embodiment and accompanying drawing:

[0035] 1. Multi-relay network model

[0036] The multi-relay forwarding model discussed in the present invention is as figure 1 As shown, there is 1 source node S, and there are M optional relay nodes in total, among which there are N nodes participating in the relay, and the subscript sets are respectively and , a destination node D. Each node only knows the channel information (Channel State Information, CSI) of the node connected to itself.

[0037] As shown in the figure below, the communication process is divided into two phases. In the first stage, the source node broadcasts the information to be sent to the relay node (in our model, it is assumed that there is no direct path from the source node to the destination node). In the second stage, the relay nodes participating in the relay determined by the relay selection method forward the received in...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a multi-relay-selection and power distribution method based on the system interrupt probability. The multi-relay-selection and power distribution method based on system interrupt probability is specific to an amplification forward (AF) cooperative communication network under the condition that the power of each user and the total power are limited, and treats the minimization of the system interrupt probability as the target. A sequencing idea is introduced, the qualities of relays are sequenced according to contribution factors of the system interrupt probability from each relay nodes, exhaustible search is effectively avoided, and the frequency of power distribution is reduced through a simple power iteration method. The multi-relay-selection method is quite similar to an optimal power distribution exhaustible traversal scheme in performance, and compared with the optimal power distribution exhaustible traversal scheme in which each possibly existing relay set adopts optimal power distribution, the complexity of the multi-relay-selection and power distribution method based on the system interrupt probability is largely reduced.

Description

technical field [0001] The invention discloses a multi-relay selection and power allocation joint method based on interruption probability, which belongs to the technical field of wireless communication. Background technique [0002] Multiple-input multiple-output (MIMO) technology can effectively resist the influence of multipath fading in wireless communication, but it is difficult to be applied in actual wireless communication terminals due to the limitations of equipment size, cost and hardware performance. Cooperative communication technology utilizes mutual cooperation among single-antenna mobile terminals to share each other's antennas to form a virtual MIMO system, thereby obtaining space diversity. Future wireless communication systems need to provide more high-speed multimedia services and data services. The purpose of cooperative communication is to make full use of node resources in the network to help nodes with communication needs perform high-speed and reliabl...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H04W52/46H04W72/04
CPCH04B7/15535
Inventor 朱琦周志康
Owner NANJING UNIV OF POSTS & TELECOMM
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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