Multi-hop routing cooperation method of wireless network and realization apparatus thereof

Abstract

The invention relates to a multi-hop routing cooperation method of a wireless network and a realization apparatus thereof. The method comprises the following steps that: after a route is established, a common neighbor node between a first host node and a second host node on the route is taken as a cooperative node, and an end-to-end diversity gain and an end-to-end interruption probability between the first host node and the second host node are obtained during cooperation of the cooperative node; a common neighbor node between the second host node and a third host node on the route is taken as a cooperative node, and an end-to-end diversity gain and an end-to-end interruption probability between the second host node and the third host node are obtained during cooperation of the cooperative node; a common neighbor node between the first host node and the third host node on the route is taken as a cooperative node, and an end-to-end diversity gain and an end-to-end interruption probability between the first host node and the third host node are obtained during cooperation of the cooperative node; and node segmentation modes are determined as one-hop node segmentations having corresponding cooperative nodes or two-hop segmentations having corresponding cooperative nodes with utilization of the obtained diversity gains and interruption probabilities.

Description

technical field [0001] The invention relates to the technical field of wireless communication, in particular to a multi-hop routing cooperation method and implementation device of a wireless network. Background technique [0002] In a wireless network, when a source node and a destination node have a one-hop direct link, cooperative communication (Cooperative Communication, CC) is usually used to improve communication reliability. As a communication method, cooperative communication can enable a mobile station with a single antenna to obtain gains similar to those in a Multiple-Input Multiple-Out-put (MIMO) system. [0003] The basic idea of ​​cooperative communication is: in a multi-user environment, mobile stations with a single antenna can share each other's antennas in a certain way to generate a virtual MIMO system, thereby obtaining transmit diversity gain. Cooperative communication utilizes the antennas of other idle nodes in the wireless network. When the source nod...

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Problems solved by technology

[0008] In the process of realizing the present invention, the inventor found that the prior art has at least the following defects: the cooperative communication using the distributed cooperative protocol is only applied to the case of a one-hop direct link between the source node and the destination node, and for the source node The multi-path and multi-hop routing with the destination node lacks a corresponding cooperative communication method to improve the performance of the communication process

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