Power Allocation Method Based on End-to-End Outage Probability Constraint

Abstract

The invention relates to the technical field of wireless communication, and discloses a method for distributing power based on end-to-end interrupt probability constraint. The method comprises the following steps of: S1, carrying out channel measurement, main user perception and service-aware by an acknowledge terminal; S2, calculating the maximal emission power of each acknowledge terminal according to channel measurement information and main user perception information; S3, determining a relay candidate set composed of relay paths according to the channel measurement information, the main user perception information, end-to-end business information and the maximal emission power, and then distributing the emission power to each relay path in the relay candidate set; S4, traversing the relay candidate set, selecting the relay path on which the sum of the emission power of all acknowledged relay nodes is the minimal as an optimal relay selection result path, and recording the emission power of each acknowledge terminal determined by the optimal relay path in the process of distributing the emission power. The invention proposes optimal relay selection and power distribution flows, so as to achieve the energy-saving purpose.

Description

technical field [0001] The invention relates to the technical field of wireless communication, in particular to a power allocation method based on an end-to-end outage probability constraint. Background technique [0002] With the evolution of wireless communication technologies, wireless networks of various access technologies are emerging and overlapping geographically. The evolution of technology makes users' demand for high-bandwidth and high-speed wireless communication services increasing day by day, but the lack of spectrum resources has become the main contradiction that limits the realization of this demand. According to the existing fixed spectrum allocation method, each network only works in its own licensed frequency band. Due to the uneven characteristics of user behavior in time and region, spectrum resources also have uneven utilization in time and space. That is: within a certain period of time, some frequency bands have a relatively large traffic volume, wh...

AI Technical Summary

Problems solved by technology

At present, there are some researches focusing on energy consumption in the two-hop relay network. The optimal power of each hop node is calculated according to the information and service quality requirements of the respective channels in the two hops. The service quality requirements here are only based on signal-to-noise Than the definition, without including the user's business needs

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