Network coding communication method for wireless relay network

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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