一种保证远近比例公平的连接接纳控制策略  

Connection Admission Control Scheme with Near Far Proportional Fairness Guarantees in Wireless Networks

作　　者：程军[1] 李鸥[1] 于宏毅[1] 李跃进[1] 

机构地区：[1]信息工程大学信息工程学院,河南郑州450002

出　　处：《小型微型计算机系统》2010年第5期857-862,共6页Journal of Chinese Computer Systems

基　　金：国家自然科学基金项目(60872043)资助

摘　　要：提出一种远近比例公平的接纳控制机制NFPF,通过控制距离基站较远和较近两类用户的接入概率,保证了两类用户连接接入的比例公平性.对NFPF机制进行了建模和性能分析.最后提出改进的远近效用比例公平接入控制算法UNFPF,实现了用户连接的效用公平性,并给出了简化的UNFPF算法,以降低运算复杂度.仿真表明,NFPF(UNFPF)机制能有效保证用户间的接入公平性,灵活性高,能够实现系统效用与接入公平的较好折衷.In this paper,a CAC algorithm with near far proportional fairness（NFPF）is proposed.By controlling the admitting probability of subscriber stations（SSs）both far from and near with base station（BS）,proportional fairness in terms of connection admission between two kinds of SSs is achieved.Markov theory is used to model and analyze NFPF.In addition,the improved utility based NFPF（UNFPF）scheme is presented,which guarantees admitting fairness in terms of subscriber utilities in stead of numbers of active connections,and the simplified UNFPF with little computational complexity is offered as well.Simulation results show that NFPF（UNFPF）can well guarantee the admitting fairness between users,and by adjusting admitting factors flexibly,different tradeoffs between system utility and subscriber fairness can be attained as well.

关 键 词：服务质量 连接接纳控制 远近效应 比例公平 

分 类 号：TP301[自动化与计算机技术—计算机系统结构]