Satellite cross-layer joint optimal power allocation method based on non-cooperative game

A non-cooperative game and joint optimization technology, applied in the field of space communication, can solve problems such as ignoring the overall joint optimization performance of the network, and achieve the effect of improving communication performance, improving communication quality, and reducing bit error rate

Active Publication Date: 2015-04-29
BEIJING UNIV OF POSTS & TELECOMM
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Problems solved by technology

The traditional satellite radio resource management system is designed in layers, and often only optimiz

Method used

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  • Satellite cross-layer joint optimal power allocation method based on non-cooperative game
  • Satellite cross-layer joint optimal power allocation method based on non-cooperative game
  • Satellite cross-layer joint optimal power allocation method based on non-cooperative game

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Embodiment approach

[0034] figure 1 It is a method flowchart of an embodiment of the present invention, specifically comprising the following steps:

[0035] Step S1: Under the control of the satellite network control center, the synchronous broadband satellite physical layer counts the real-time information of each service, and uploads it to the satellite network control center;

[0036] Step S2: The satellite network control center defines the utility function of the network based on the physical layer statistical information and the QoS requirements of different services, and models the service power allocation problem as a multi-service static non-cooperative game model;

[0037] Step S3: According to the revenue vector of the model, the overall useful power is allocated to different beams according to the business and system requirements, and corresponding coding methods are adopted for different businesses at the application layer;

[0038] Step S4: Repeat the above steps according to a pr...

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Abstract

The invention relates to a satellite cross-layer joint optimal power allocation method based on a non-cooperative game. The method comprises the following steps: counting real-time information of each user on a synchronous broadband satellite physical layer; considering a satellite as a power limited system and modeling a power allocation problem as a multi-user static non-cooperative game model according to the QoS (Quality of Service) needs of different services; allocating power for the different services according to solutions and adopting corresponding encoding modes on an application layer aiming at the different services; repeating the steps at regular intervals. According to the cross-layer optimal power allocation method provided by the invention, a satellite network control center can be enabled to feed back information according to a channel state provided by a physical layer, and the QoS needs of the different services are considered; the power allocation problem is modeled as the multi-user static non-cooperative game model; meanwhile, the corresponding encoding modes are adopted on the application layer aiming at the different services according to the different cross-layer solutions, so that the communication quality of a user in a mobile communication system can be comprehensively improved, and the system performance can be improved.

Description

technical field [0001] The invention relates to the technical field of space communication, in particular to a non-cooperative game-based satellite cross-layer joint optimization power allocation method. Background technique [0002] With the commercialization of terrestrial cellular 4G technology gradually matured, research on 5G technology is also in full swing. The mobile satellite communication system introduced in order to solve the coverage problem of the terrestrial cellular mobile communication system has become a research hotspot accordingly. Among them, the integrated mobile communication system obtained by integrating the satellite mobile communication system and the ground mobile communication system is considered to be an important part of the next generation communication network. [0003] For the synchronous satellite communication system, since the satellite is in a synchronous satellite orbit far from the ground, the RTT (Round-Trip Time, round-trip delay) ...

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Application Information

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IPC IPC(8): H04W52/34H04B7/185
CPCH04B7/18543H04B7/18578H04W52/34
Inventor 崔琪楣李左琳宋恒国元天鹏刘宝玲
Owner BEIJING UNIV OF POSTS & TELECOMM
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