Relay selecting method based on interrupt priority for unisource multi-relay cooperative communication system

A collaborative communication, single-source technology, applied in wireless communication, sustainable communication technology, advanced technology, etc., can solve the problems of unsatisfactory system throughput and communication quality, improve system throughput, ensure fairness and throughput Effect

Inactive Publication Date: 2013-11-20
XI AN JIAOTONG UNIV
View PDF3 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the "interruption priority" optimal fair selection strategy proposed in the literature focuses on ensuring the fairness ...

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
  • Relay selecting method based on interrupt priority for unisource multi-relay cooperative communication system
  • Relay selecting method based on interrupt priority for unisource multi-relay cooperative communication system
  • Relay selecting method based on interrupt priority for unisource multi-relay cooperative communication system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0037] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0038] Such as figure 1 As shown, the relay selection method based on interrupt priority in the single-source multi-relay cooperative communication system provided by the present invention includes the following steps:

[0039] Step 1: On the destination node, set the forwarding times counter for each relay in the system to count the number of times the relay participates in the cooperative communication, and set the initial value of the forwarding times counter of each relay to be zero, that is For the mth relay (m∈{1,…,M}), set cnt m =0, where cnt m is the value of the forwarding times counter of the mth relay, and M is the total number of relays in the system;

[0040] Step 2: The cooperation period starts. After the source node broadcasts data, observe the channel quality of all links, select the relay whose channel capacity is greater than the interru...

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 relay selecting method based on interrupt priority for a unisource multi-relay cooperative communication system, which aims at overcoming a defect that an 'optimum interrupt' optimal fair selection strategy cannot ensure a larger system throughput. The method comprises steps of firstly, arranging an independent transmission times counter for each relay on a target node; then selecting a relay with the channel capacity being more than the interrupt capacity and adding the relay into a candidate set; selecting a relay with less transmission times from the candidate set and adding the relay into an optimal set, and then selecting a relay with the optimal channel quality from the optimal set to transmit; increasing the count of the corresponding transmission times counter after each transmission of each relay; repeating the steps in each cooperation period until the cooperation period ends. According to the method, the channel quality and fairness are comprehensively taken into consideration when the relays are selected, the system throughput is improved on the basis of ensuring high fairness, and the method has a good effect.

Description

technical field [0001] The invention relates to the technical field of cooperative wireless communication, in particular to a relay selection method based on interruption priority in a single-source multi-relay cooperative communication system. Background technique [0002] In wireless communication networks, fading, multipath and node movement lead to poor communication environment. With the gradual increase of wireless network users and the gradual enrichment of services, higher transmission rate and communication quality have become an imminent demand. Based on the strong demand for high transmission rates, researchers have proposed the concept of cooperative diversity in cooperative communication, which uses diversity methods to combat fading characteristics in wireless communication systems, thereby improving communication quality. [0003] In cooperative communication, the cooperation mode of source and relay is the key to affect the performance of the system. In the...

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
IPC IPC(8): H04W40/22
CPCY02D30/70
Inventor 潘志斌吴俊杰高峰
Owner XI AN JIAOTONG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap