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

Method for selecting transmission rate in cooperative diversity

A technology of transmission rate and cooperative diversity, applied in network traffic/resource management, electrical components, wireless communication, etc., can solve problems such as large fluctuation range and performance loss

Inactive Publication Date: 2017-01-11
BEIJING XINWEI TELECOM TECH
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the fluctuation range of the actual achievable transmission rate in the cooperative diversity scheme is larger than that in the broadcasting business. If a fixed low-order MCS is used in the cooperative diversity scheme, it will lead to more obvious performance loss

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
  • Method for selecting transmission rate in cooperative diversity
  • Method for selecting transmission rate in cooperative diversity
  • Method for selecting transmission rate in cooperative diversity

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] The topology used in this embodiment is as follows figure 2shown. Node S is the source node. According to the routing information, all available paths in the area are obtained, such as image 3 .

[0038] According to the channel parameters of each hop in each path, assuming that the following services require BLER Figure 4 .

[0039] According to business requirements, determine the transmission rate of the business, as follows:

[0040] ——Node S transmits a service whose sink nodes are D1 and D2, and the service requirement is to maximize the transmission rate: the available transmission rate range is determined to be 0~r2 according to the sink node, and the final transmission rate is determined to be r2.

[0041] ——Node S transmits a service whose destination nodes are R1, R2, D1, and D2. The service requirement is to maximize the transmission rate: the available transmission rate range is determined to be 0~r1 according to the sink node, and the final transmissi...

Embodiment 2

[0047] The topology used in this embodiment is as follows figure 2 shown. Node S is the source node, and needs to send a service whose destination nodes are D1 and D2, and the reliability requirement is BLER<0.1%.

[0048] Node S first calculates the reachable nodes under the given hops of cooperative diversity at different transmission rates according to the routing information and channel parameters, such as Figure 6 .

[0049] Node S calculates that the transmission rate to be adopted is 2.2 Mbps, and triggers the rate training process. Assume that in the process:

[0050] - The standard for relay and sink nodes to perform feedback is that all relay and sink nodes perform feedback;

[0051] ——The content of the feedback is to receive BLER, and the business requires to receive BLER<0.1%;

[0052] ——After the end of the training, the transmission rate of the training message used for the second time has a reverse increase of no less than 0.1 Mbps, the transmission perf...

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 provides a method for selecting a transmission rate in cooperative diversity. The method comprises the following steps: calculating reachable node ranges of given hop counts corresponding to different transmission rates according to routing information; determining an available transmission rate range according to a sink node of a cooperative diversity task; and selecting the transmission rate according to business demand within the available transmission rate range. By adoption of the method, the current communication rate can be determined according to different scenes and business types, so that the transmission rate of the system is adjustable, and the purpose of guaranteeing the business reliability and achieving the optimal business performance is achieved by using different rate selection strategies.

Description

technical field [0001] The invention relates to the field of wireless communication, in particular to a method for selecting a transmission rate in cooperative diversity. Background technique [0002] In a wireless network, when a source node needs to initiate a service to multiple sink nodes other than multi-hop, a common method is to transmit the service in the form of broadcast, that is, to form a multi-hop flood broadcast. In the multi-hop flood broadcast, the source node selects the communication rate, and the relay node does not change the received message and forwards it as it is, so it is equivalent to the source node needing to select the common communication rate of each hop in the entire broadcast process . Therefore, the typical way of broadcast flooding is to use a fixed low-order MCS. By selecting a low-order MCS, the reliability of service transmission in the broadcast communication process without feedback is improved, and the complexity of receiving and par...

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): H04W28/22
CPCH04W28/22
Inventor 周淼孙鹏
Owner BEIJING XINWEI TELECOM TECH
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