Research On Satellite Communication System Resource Allocation Method

With the advancement of science technology and people's continuous exploration of the space,satellite technology has got rapid development,which also makes the satellite play an increasingly important role in the military areas,commercial areas,as well as the civilian areas in the present society.Due to the high price of a single satellite,and its damage may cause adverse effects and high cost,to split the feature centralized,high cost and versatile function satellites into relatively small satellites becomes more and more popular in the military and civilian.So,with the increase of the number of satellites in the satellite formation,the networking modes has become a key research objectives.Resource allocation problem associated with satellite cluster occupies an important position in the satellite cluster network,it is worth further study.The studies of this paper was supported by Vire,and has a very important significance and prospects.Firstly,the characteristics of satellite module group adaptive network systems is analyzed,and the status of the development of domestic and international satellite technology is studied,in which the networking,transmission,and radio resource allocation is mainly discussed.In this article,game theory analysis method is introduced to construct the game model of distributed resource allocation by studying distributed resource allocation algorithm of satellite formation.A function which is a joint optimization of communication reliability,network utilization and energy cost is constructed after rational analysis of satellite nodes preferences,and satellite network distributed resource allocation scheme based on game theory is proposed,and the existence of uniqueness Nash equilibrium is proved.What is more,simulation shows that the resource allocation algorithm can effectively improve the overall network resource utilization,and improve communication quality.At the same time,taking the problem into account that the distributed resource allocation scheme cannot avoid information localization,and the uneven distribution of overall network resource.A new centralized resource allocation scheme based on forecast is proposed to predict the node action.In this article,a reasonable forecast model based on virtual competition and cost formula is proposed,in which the best lines are reserved for a more rational allocation of resources.The program focused on a good allocation of resources to suppress preemption issue,the uneven distribution and local network congestion.In the meantime,the program can reduce the transmission delay,and get a high throughput and overall network utilization with a smaller information exchange cost.