无线通信预留信道策略改进模型的研究
首发时间:2012-07-09
摘要:无线通信中有限资源的有效分配一直是许多学者研究的重点。学者HUANG Zhen提出的无线通信中信道预留理论成功的解决了混合无线通信网不同类型的用户的信道资源分配问题。然而深入的研究发现,其数学模型中并没有区分主用户和次用户的通信信道占用完成速率,这并不适合实际通信应用环境。本文提出了改进的无线通信预留信道策略数学模型,并分析了不同的主用户和次用户的通信信道占用完成速率对网络性能的影响。结果表明,次用户的通信信道占用完成速率比主用户的通信道占用完成速率对网络性能的影响更大。
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Research on Improved Model of Guard Channel Scheme in Wireless Communications
Abstract:Efficient allocation of limited resources in wireless communication has been the focus of many scholars. Guard channel scheme in wireless communications proposed by HUANG Zhen has been the successful solution of channel resource allocation problem in a mixed wireless communication network with different types of users. But future study shows that the mathematical model does not distinguish the completion rates of channel occupation between primary users and the secondary users, which is not suitable for the real communication environment. In this paper, we present an improved Markov state chain model of guard channel in wireless communications to analyse the impact of one important parameter, the completion rates of channel occupation to the whole network peformance. The results show that the sencondary users' completion rates of channel occupation pose greater impact on network performance than that of primary users'.
Keywords: Wireless communications Guard Channel Scheme CTMC
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