现代无线通信技术
词牌名都有哪些-穷人续写
(1)RadioTransmission Interface of The
Digital Pan European Mobile System
泛欧数字移动通信系统无线电发射接口
引言
本文描述的是移动通信系统的无线
电发射接口规格,这种规格是根据不同的无
线电接入技术(FDMA频分多址,TDMA时分多址,),
以及不同的调制和编码
方案,在比较了硬件实验设备之后确定的。本文讲述了这种规格的选择过程,然<
br>后对无线接口规范,以及在频率复用方面展示的预期性能进行了描述。同时,根
据本规范,也提出
了在法国建立验证硬件测量结果的系统。
(2)The Wireless
Revolution
无线革命
引言
本文对无线通信目前的需求和近期发
展进行了描述。对用于全球无线资金进行了一
个预估。同时对无线通信技术方面的运用到的器材和技术进
行了讨论,并且呈现了
一些研究结果。
(3)Overview of
wireless personal communications
无线个人通信的概述
引言
本文对无线通信现状进行了概述,包括正在进行的一些相关技术研发项目,无线
通信的标准,频谱分配等。在本文中,作者讨论了蜂窝无线电、无绳电话和无线
数据系统。对目前和计划
中的无线通信发展进行了总结。本文主要讨论的是无线
通信广泛的覆盖面问题,并且对现有数字蜂窝和数
字无绳系统的空中接口进行了
简要讨论,因为空中接口承载依赖于系统的容量,该系统可以使用的环境,
以及
在设备的成本和复杂性
(4)blocking,hand-off and traffic performance
for cellular communication systems
with mixed
platforms
混合平台的蜂窝通信系统阻塞,切换和流量性能
引言
Cellular communication systems that
support a mixture of platform types
distinguished by different mobility
characteristics are considered. A tractable
analytical model for traffic performance
analysis is developed using
multidimensional
birth-death processes and the method of phases.
The
framework allows consideration of
homogeneous and nonhomogeneous systems,
a
broad class of dwell time distributions, and
'missed' hand-off initiations. Cut-off
priority for hand-offs and several platform
types are considered to demonstrate the
approach. The effects of different mobility
parameters and of imperfect detection
of hand-
off needs are examined. Theoretical performance
characteristics are
obtained. These exhibit
carried traffic, hand-off activity, blocking
probability and
forced termination probability
for each platform type. The realisable exchange of
blocking for hand-off performance is shown.
Computational issues are discussed
and a
method for extrapolating performance
characteristics for systems with many
channels
is presented。
本文讨论了一种支持混合平台类型的蜂窝通信系统,这种混合
平台的类型是由不同
的移动特性来区分的。本文采用多维生灭过程和阶段分析方法,建立了一个用于通<
br>信性能分析的简单模型。该模型允许考虑均相和非齐次系统,广泛的停留时间分布。
在描述该方法
的过程中,考虑了切断优先级和一些平台类型。也检验了不同的流动
参数影响,以及不完善的检测越区切
换的需要。取得了理论性能特性。这些展品进
行通信,手断活动,阻塞概率和强制中断概率为每个平台类
型。示阻塞用于越区切
换性能的变现交换。计算问题进行了讨论,并外推的性能特性与许多通道系统中的
方法。
(5)a simulation study of
urban in-building frequency reuse
在城市建设的频率复用的模拟研究
Abstract
Cellular
communication systems that support a mixture of
platform types
distinguished by different
mobility characteristics are considered. A
tractable
analytical model for traffic
performance analysis is developed using
multidimensional birth-death processes and the
method of phases. The
framework allows
consideration of homogeneous and nonhomogeneous
systems,
a broad class of dwell time
distributions, and 'missed' hand-off initiations.
Cut-off
priority for hand-offs and several
platform types are considered to demonstrate the
approach. The effects of different mobility
parameters and of imperfect detection
of hand-
off needs are examined. Theoretical performance
characteristics are
obtained. These exhibit
carried traffic, hand-off activity, blocking
probability and
forced termination probability
for each platform type. The realisable exchange of
blocking for hand-off performance is shown.
Computational issues are discussed
and a
method for extrapolating performance
characteristics for systems with many
channels
is presented
支持由不同的移动特性区分平台类型的混合物的蜂窝通信系统中被考虑。采
用多
维生灭过程和阶段的方法被开发用于通信性能分析一个听话的分析模型。该框架
允许考虑均相和非齐次系统,一大类停留时间分布,和“遗漏”手断灌顶。手帐
和几个平台类型切断
优先级被认为表明了该方法。不完善的检测手断需求的不同
移动性参数和效果进行检查。理论性能特性而
异。这些展品进行通信,手断活动,
阻塞概率和强制中断概率为每个平台类型。示阻塞用于越区切换性能
的变现交
换。计算问题进行了讨论,并外推用于与许多信道的系统性能特性的方法,提出