Bandwidth and power multi-target cross-layer optimization method facing QOS in AOS

Abstract

The present invention discloses a bandwidth and power multi-target cross-layer optimization method facing a QOS in an AOS (Advanced Orbiting System). The original dispersive protocol layers are connected through cross-layer optimization to establish a cross-layer optimization model to allow each protocol layer to be regulated according to business demands and channel states, the bandwidth and theemission power are reasonably distributed through a cross-layer utility function and multi-target optimization so as to ensure the business QoS demands and improve the bandwidth utilization and systemthroughput.

Description

technical field [0001] The present application relates to the technical field of space communication, in particular to a QOS-oriented multi-objective cross-layer optimization method for bandwidth and power in AOS. Background technique [0002] With the advent of manned spacecraft, the International Space Station, etc., and the continuous development of aerospace technology, its application requirements in the fields of military, meteorology, remote sensing, and deep space exploration continue to expand. Space communication technology has become a powerful manifestation of the economic and technological strength of various countries. current research hotspot. With the increasing demand, all kinds of satellites and spacecraft involve more diverse tasks and types. In addition to traditional telemetry and remote control data transmission, two-way transmission of audio and video, scientific experiments, flight control instructions, etc. Data, data transmission volume is large an...

AI Technical Summary

Problems solved by technology

[0003] Aiming at the problems of low bandwidth utilization, decreased throughput, and inability to meet the QoS requirements of various services caused by the characteristics of many types of services and large channel fading in the AOS space communication system, this application firstly proposes a method to maximize the bandwidth based on the utility function. and power cross-layer optimization method, and then add a system throughput optimization function on the basis of bandwidth utility and power consumption cost function, so that single-objective optimization can be transformed into multi-objective optimization. The specific technical solution of this application is implemented in this way:

Images