异构无线网络中的共享载波垂直网络转换算法  

Shared carrier vertical network transformation algorithm in heterogeneous wireless networks

作　　者：赵亮[1] 金梁[1] 黄开枝[1] 杨梅樾[1] 

机构地区：[1]国家数字交换系统工程技术研究中心,河南郑州450002

出　　处：《通信学报》2012年第1期79-88,共10页Journal on Communications

基　　金：国家高技术研究发展计划("863计划")基金资助项目(2009AA011202;2009AA011205);国家科技重大专项基金资助项目(2009ZX03006-007);新世纪优秀人才支持计划基金资助项目~~

摘　　要：为了提高异构无线网络的频谱利用率,将认知无线电中合作动态频谱分配(DSA)的思想应用于以基站和用户为基本单元的异构无线网络,将多模终端用户垂直切换的思想引入基站侧,提出了异构无线网络中的共享载波垂直网络转换(SCVNT)算法。理论分析与仿真实验表明,SCVNT算法可有效提高异构无线网络的总体信道利用率,改善资源分配的公平性,并可实现平滑升级,具有较高的应用价值。In order to enhance the spectrum efficiency in heterogeneous wireless networks, the idea of dynamic spectrum allocation （DSA） used in cognitive radio was introduced into the heterogeneous wireless networks, the idea of vertical handoff for multi-mode mobile users was introduced into the base station side, thereafter, the shared carder vertical net- work transformation （SCVNT） algorithm in heterogeneous wireless networks was proposed. The theoretical analysis and simulation results show that SCVNT algorithm can effectively enhance the total channel efficiency in heterogeneous wireless networks, improve fairness in resource allocation, and will be able to achieve smooth upgrade, which is of a relatively high application value.

关 键 词：异构无线网络 频谱利用率 认知无线电 动态频谱分配 多模基站 

分 类 号：TN929.5[电子电信—通信与信息系统]