Dynamic relaying incentive fair-share dispatching method for cooperative downlink transmission

Abstract

The invention discloses a dynamic relaying incentive fair-share dispatching method for cooperative downlink transmission. The dynamic relaying incentive fair-share dispatching method includes that a base station selects users according to proportional fairness principle, a relay node quantifies data cooperation of other users in the process of calculating dispatching weight and brings parameters and residual energy information of the node into calculation of dispatching weight, and dispatching opportunities of the relay node are compensated, accordingly, energy efficiency is improved, fairness of relay users is realized and network time is prolonged. By the dynamic relaying incentive fair-share dispatching method, cooperative fairness dispatching is realized for destination users and the relay node, the relay node quantifies the data cooperation of the other users , the parameters and the residual energy information of the nodes are involved in calculation of the dispatching weight, the dispatching opportunities of the relay node are compensated, dispatching fairness of the users involved in the data cooperation is improved, network lifetime is prolonged and user energy efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of communication, and in particular relates to a dynamic relay incentive fair scheduling method for cooperative downlink transmission. Background technique [0002] In order to solve the limitations of traditional point-to-point wireless transmission in terms of system capacity, coverage and anti-multipath fading, as well as realize and utilize the space diversity provided by multi-antenna communication systems, cooperative communication technology emerged as the times require . With this technology, multiple single-antenna mobile terminals cooperate with each other to form a virtual antenna array, thereby improving communication performance. Typical relay cooperation methods include Amplify-and-Forward (AF) and Decode-and-Forward (DF). [0003] In the actual cooperative communication system, there are often multiple potential relay nodes, how to choose a relay reasonably has become an important issue in t...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the embodiments of the present invention is to provide a method for dynamic relay incentive fair scheduling for coordinated downlink transmission, aiming to solve the problem of user / relay joint selection and relay user's own energy consumption to assist other users in transmission without corresponding compensation mechanism, resulting in the unfairness of relay users

Images