检索结果-南通市图书馆

An Improved Semi-Orthogonal User Selection Algorithm Based on Condition Number for Multiuser MIMO Systems

China Communications 2014年第A1期11卷 23-30页

作者： LU Xinlu WU Jun HUANG Xinlin LI Wenfeng LU Jianmin GONG Zhengwei computerscienceandtechnologydepartment TongjiUniversityShanghai201804China HuaweiTechnologiesCo. LtdShanghai201206China

In Multiple-Input Multiple-Out （MIMO） systems, the user selection algorithm plays an important role in the realization of multiplexing gain. In this paper, an improved Semi-orthogonal User Selection algorithm based on condition number is proposed. Besides, a new MIMO pre- coding scheme is designed. The proposed SUS- CN （SUS with condition number） algorithm outperforms the SUS algorithm for the selection of users with better matrix inversion property, thus a higher information rate for selected user pair is achieved. The designed MIMO precoding matrix brings benefits of the power equality at transmitted terminals, the limited dynamic range of the power over time, and a better power efficiency. The simulation results give the key insights into the im- pact of the different condition number value and users on the sum-rate capacity.

关键词： Multiple-Input Multiple-Output sumrate capacity condition number semi-orthogonaluser selection

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

An Intrusion Detection System Model Based on Immune Principle and Performance Analysis

引用

The Journal of China Universities of Posts and Telecommunications 2005年第1期12卷 31-35页

作者： CHENZhi-xian WANGRu-chuan WANGShao-di SUNZhi-xin computerscienceandtechnologydepartment NanjingUniversityofPostsandTelecommunicationsNanjing210003P.R.China StateKeyLaboratoryofInformationSecurity GraduateSchoolofChineseAcademyBeijing100039P.R.China

The study of security in computer networks is a key issue, which is a rapidlygrowing area of interest because of its importance. Main network security problems are analyzed inthis paper above all, which currently are confronted with network systems and existing works inintrusion detection. And then an intrusion detection system model based on Immune Principle (IPIDS)is presented. Meanwhile, it expatiates detailed implementation of the methods how to reduce the highfalse positive and negative alarms of the traditional Intrusion Detection System (IDS). At last asimple simulation is performed on this model just using string match algorithm as binding *** simulation results indicate that the model can detect malicious activity effectively, andconsequently the security and steadiness of the whole network system are improved also.

关键词： human immune system intrusion detection detector

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：