摘要
多频-时分多址(MF-TDMA)卫星通信系统中信道资源十分宝贵,如何高效地分配和利用卫星通信系统信道资源,研究出一种可以降低卫星通信时延的算法很有必要。提出了一种MF-TDMA卫星通信系统中基于业务预测的时隙分配方法,通过终端缓存区域的队列长度和业务到达率来进行下一时刻的业务预测,中心站根据业务预测值来提前进行下一时刻信道资源的分配。仿真结果表明,通过基于业务预测的时隙分配算法可以有效降低传输时延,提高信道资源的利用率。
The resource of MF-TDMA satellite systems is very precious,how efficiently assign and make use of channel resources of satellite communication system,it is necessary to design an algoritm which can reduce satellite communication delay. This paper puts forward a timeslot assign method based on business predicts in MF-TDMA satellite communication system. This method performs the business predict of next moment based on the queue size and business arrival rate and the master station performs in advance channel resource allocation of next moment according to the business predict value. The simulation results show that the timeslot assign method can effectively reduce the transmission delay and improve the channel resource utilization.
出处
《无线电工程》
2016年第3期30-32,57,共4页
Radio Engineering
基金
国家部委基金资助项目
