Base station user selection, relay user selection and ownership and power distribution method

Abstract

The invention provides a base station user selection, relay user selection and ownership and power distribution method. The method comprises: respectively determining channel information from all active base station users and all relay users respectively to base stations and relay nodes; according to the channel information from all the relay users to the base stations and the relay nodes, determining the selection and ownership base stations of the relay users; according to the ownership situations of the relay users and the channel information from all the base station users to the base stations and the relay nodes, respectively determining the base station user selection of base stations at the left and at the right of the relay nodes; and according to the service quality of each selected user and the channel information from each selected user respectively to the base stations and the relay nodes, determining the smallest emission power of each selected user. The base station user selection, relay user selection and ownership and power distribution method can improve the performance of a whole communication system.

Description

Technical field: [0001] The present invention relates to the field of wireless communication, in particular to user selection and power allocation in the field of wireless relay cooperative communication, in particular to a base station user selection, relay user selection and relay user attribution and the minimum power required by the selected user method of allocation. Background technique: [0002] With the development of society, people have higher and higher requirements for performance such as transmission rate and communication security. However, available spectrum resources are becoming more and more tense. In order to meet people's requirements for communication quality, improve communication quality, and reduce the cost of unit data transmission, in recent years, the use of relay cooperation technology and the same frequency in all cells have been proposed. Reuse technology and so on. [0003] The core idea of ​​the relay cooperative communication technology is ...

AI Technical Summary

Problems solved by technology

[0004] Then, in the cooperative communication mode of single source, single relay and single sink, due to the simplex mode of the relay node, a complete data transmission takes two orthogonal channels, which is different from the direct transmission between the source and the sink. This space diversity feature reduces the frequency efficiency in comparison to spending only one orthogonal channel

At the same time, due to the same frequency reuse of the whole cell, the same frequency signal interference between cells will be aggravated

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