摘要
提出并建立了一个基于马尔可夫调制的泊松过程MMPP(M arkovModu lated Poisson Process)和间歇泊松过程IPP(Interrupted Poisson Process)的系统模型,从新用户的到达和系统中用户发起的新业务两个方面着手,考察了在受系统门限值约束情况下的接入系统的新用户数量和系统内用户发起的业务数量对802.11网络性能的影响。仿真结果显示,在系统容量受约束的情况下,这两个因素都会影响系统的载干比C/I,并且网络性能随着载干比C/I的变差而呈显著的恶化趋势。
A system model based on a Markov Modulated Poisson Process and Interrupted Poisson Process is proposed.We investigate a 802.11 network performance under a threshold restriction by considering users in system who attempt to generate new WWW traffics and new arrival users who enter the system.Simulation results show that both factors affect Carrier to Interference Ratio in system under restriction of network capacity,and the 802.11 network performance will be evidently degraded because of a poor C/I.
出处
《南昌大学学报（理科版）》
CAS
北大核心
2009年第4期399-402,共4页
Journal of Nanchang University(Natural Science)
基金
国家自然科学基金重大基金资助项目(No.10890095)
东莞市科技计划资助项目(2008108101006)
关键词
网络性能
马尔可夫调制的泊松过程
间歇泊松过程
载干比
network performance
Markov Modulated Poisson Process
Interrupted Poisson Process
carrier to interference ratio
