Network coding communication method for wireless relay network

A technology of wireless relay network and network coding, applied in the field of wireless broadband access system

Active Publication Date: 2008-12-17
COMBA TELECOM SYST CHINA LTD
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Problems solved by technology

[0003] At present, network coding is mainly used in wireless multi-hop communication networks, but there are still many technical challeng

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  • Network coding communication method for wireless relay network
  • Network coding communication method for wireless relay network
  • Network coding communication method for wireless relay network

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Embodiment Construction

[0040] 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.

[0041] see figure 1 , the diagram shows a cell in the network structure of a relay mobile communication system using network coding technology, in which six relay nodes RS are set as network coding and forwarding; these relay nodes have traditional decoding forwarding or amplifying In addition to the forwarding and relaying function, it can also perform network coding and decoding processing on the data received by multiple coordinated paired terminals. The base station BS will select different transmission methods according to different locations of the mobile terminal, among which the communication between the relay node and the terminal, the communication between the relay node and the base station, or the direct communication between the terminal and the base ...

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Abstract

A method for adopting network code communication in wireless relaying network, improves the relaying ascending transmission efficiency by setting up relaying nodes and using network coding technique. The method includes the following steps: 1) disposing relaying nodes with network coding function in cellular districts, in order to extend signal coverage and be suitable for adopting network coding; 2) a base station self-adaptively determining whether to adopt relay whether to process using network coding to terminals at the relay point; 3) according to the base station feedback information, relay nodes performing data stream processing based on the network coding technique; 4) the base station centralizedly controlling the switch updating processing of network coding: when terminals move in different service districts, the base station updates relay nodes or service districts, amd newly execute network coding processing at novel relay points. The invention adopts network coding operations at relay nodes, so that the invention can respectively perform coding forwarding to the received different routing information, and largely improves relay transmission efficiency and transmission performance of edge users.

Description

technical field [0001] The invention relates to a new method of wireless communication that can effectively utilize limited wireless resources and improve network transmission performance. The method is not only applicable to cellular relay mobile communication systems, but also applicable to various wireless broadband based on relay or multi-hop technology. Access systems, such as wireless local area network, wireless metropolitan area network, etc. Specifically, it relates to a method for using network coding communication in a wireless relay network, and belongs to the technical field of wireless communication. Background technique [0002] The future wireless communication system is a system with limited bandwidth and power, especially at the cell edge, the system spectrum utilization rate is very low. How to make full use of space resources to improve system throughput has become a research hotspot. Currently, there are two effective solutions: multi-antenna technology...

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Application Information

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IPC IPC(8): H04L12/56H04L1/06H04L12/28H04Q7/38
Inventor 彭木根王月新吴湛击王文博
Owner COMBA TELECOM SYST CHINA LTD
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