Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Multi-user network coding communication method with high-speed parallel encoding and decoding structure

A network coding, coding and decoding technology, applied in the field of cooperative communication in wireless communication, can solve the problems of reduced system transmission efficiency, inability to network coding of user data, increased coding complexity and processing delay, etc. The effect of maximizing transmission efficiency and coding gain

Inactive Publication Date: 2012-11-07
BEIJING UNIV OF POSTS & TELECOMM
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] (2) In the existing network coding application scenarios based on the relay system, the relay node can only perform network coding operations on the information of two paired users; when multiple users access the network, the relay node will not be able to simultaneously Network coding of user data from multiple links reduces system transmission efficiency
In this way, the length of the encoding block becomes longer, resulting in a significant increase in encoding complexity and processing delay, which is sometimes intolerable in actual system applications

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-user network coding communication method with high-speed parallel encoding and decoding structure
  • Multi-user network coding communication method with high-speed parallel encoding and decoding structure
  • Multi-user network coding communication method with high-speed parallel encoding and decoding structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0037] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0038] The present invention is designed for the uplink based on the cellular relay mobile communication system, and is used to improve the relay uplink transmission efficiency and the quality of the transmission signal. Its system structure consists of figure 1 As shown, there are N (N≥2) users MS in the system network i (The natural number subscript i is the user serial number, and its maximum value is N) communicates with the base station BS with the help of the relay node RS.

[0039] Since the method of the present invention has different operation modes at the user end, the relay node and the base station, its specific implementation process can be divided into three steps according to the operation objects at different locations. The transmission process ...

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-user network coding communication method with a high speed parallel encoding and decoding structure, which comprises the following steps: in a wireless relay network, multiple accessed user information is integrally interweaved by a relay node, serial / parallel conversion is carried out on the interweaved sequence, multiple groups of converted parallel data are input to a high speed parallel encoder to be encoded, and finally encoded data is broadcasted, thus realizing network encoding. A base station carries out teration decoding by means of a combined network-channel decoder according to original data broadcasted by users and data obtained by network encoding and channel encoding and forwarded by the relay node to obtain the original information of the users. The decoder of the base station comprises two parallel decoder groups, i.e. a user decoder group and a relay decoder group; iteration decoding is realized through transmitting soft information between two parallel decoder groups, thus not only recovering the original information of all accessed users but also improving decoding reliability and reducing decoding time delay. By adopting the method, the relay uplink transmission efficiency and the quality of transmission signal are improved.

Description

technical field [0001] The present invention relates to a method for realizing multi-user network coding technology used in wireless communication network, specifically, relates to a method of multi-user network coding communication with high-speed parallel coding and decoding structure. The invention belongs to the technical field of cooperative communication in wireless communication. Background technique [0002] In order to meet the high-speed and wide-coverage requirements of the next-generation wireless communication, the usual solution is to introduce relays into the traditional centralized cellular communication network. By reducing transmission loss, signal reconstruction and forwarding and other technical means, effectively The coverage, transmission capacity and operating cost of the wireless communication system are improved. In practical applications, in order to avoid mutual interference between signal streams transmitted by multiple users in parallel, traditi...

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 Patents(China)
IPC IPC(8): H04L1/00
Inventor 彭岳星吴木子杨晓赵慧王文博
Owner BEIJING UNIV OF POSTS & TELECOMM
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
Eureka Blog
Learn More
PatSnap group products