摘要
在不同频段频谱共存的情况下,针对动静态频谱资源相结合的接入策略和接纳控制机制进行了研究。提出了一种支持动静态频谱资源相结合的非随机接入机制,利用排队论建立了相应的马尔可夫转移模型,定义了联合接纳控制因子,根据用户的需求不同设定了不同的控制因子门限值。启动接纳控制算法,以相应的概率来接纳新的呼叫请求。仿真结果表明,启动接纳控制算法后,用户的阻塞率、强制中断概率、联合接纳控制因子都得到了一定的改善。
In this paper, considering the situation of different frequency spectrum coexistence, access strategy and admission control mechanism are studied with the combination of dynamic and static spectrum. A non-random access mechanism supporting dynamic and static spectrum resources combined are proposed, a Markov transfer model is established based on Queue Theory and the joint admission control factor is defined. According to different user needs, system set the corresponding factor threshold starting the joint admission control algorithm. After starting the algorithm, the new call request is admitted at a certain load probability. The simulation results show that the userg blocking probability, forced interrupt probability and factor had a certain improvement.
出处
《电视技术》
北大核心
2016年第7期70-75,98,共7页
Video Engineering
基金
国家自然科学基金项目(61301124)
关键词
动静态频谱
排队论
马尔科夫转移模型
接入策略
控制因子
接纳控制
dynamic and static spectrum
queue theory
Markov transfer model
access strategy
control factor
admission control
