Directional broadcasting limits the area covered by a broadcast message, which also means limiting the number of nodes to rebroadcast and contend for the wireless channel.

This paper offers a detailed introduction to the basic knowledge on LAN collision area and broadcasting area.

详细介绍了计算机局域网冲突域和广播域的基本知识，可以使用虚拟局域网技术来隔离广播域。

By the forced peculiarity of portal rigid frame, this paper introduce the structure selection design of Zhao-an broadcasting and television studio. Especially introduce design of change-section, broken line form portal rigid frame.

本文就门式刚架受力特点，介绍了诏安广播电视中心演播厅的结构选型设计，着重介绍变截面折线形门式刚架设计。

Safety requirements for video-audio and pulse equipment of broadcasting television studio system

GB9378-1988广播电视演播系统的视音频和脉冲设备安全要求

Analysis of Functions of Fictitious Broadcasting Studio System

虚拟演播室系统功能分析

Research on the Schemes of Carrying Technology of IPTV Live Broadcasting Service

IPTV直播业务承载技术方案研究

Programs on this channel are run by the Public Broadcasting Service ( PBS) and can be seen all over the USA.

该频道播放由公众广播服务公司制作的节目，全美国的人们都能收看到。

Executives at Norway's National Broadcasting Service are now considering broadcasting a night of knitting nationwide.

挪威国家广播服务的高管们，现在正在考虑播放一档举国编织之夜的节目。

In an OFDM-based broadband system, each subcarrier experiences different fading due to time-varying channels and multi-path fading.

在宽带OFDM系统中，由于信道时变和多径衰落等影响，每个子载波经历不同的衰落。

The measured data are transferred to a grand facility through the Maritime Broadband System ( MBS).

所测的数据是通过海事宽频系统（MBS）传送的。

Analyzed OSS architecture running on broadband system and the AAA subsystem;

分析了在此网络之上的运营支撑系统总体框架和AAA子系统在运营支撑系统中的作用；

Combining Coding with Spreading Code to Reduce HF Broadband System's PAPR

编码与扩频码结合降低短波宽带系统PAPR

Analysis and experimental study of the broadband system of ADM

宽频带ADM系统分析与实验研究

The Scheme and Design of Security in Qingdao Cable TV Broadband System

青岛有线电视宽带系统安全规划与设计

Key Technologies and Current R& D Level of the Mobile Broadband System

移动宽带系统的关键技术与研究现状

In Chapter ⅲ, broadband radio channel measurements are performed, with the time-domain measurement method, in a lab of the University of Electronic Science and Technology.

第三章，采用时域测量方法，在电子科技大学的一个实验室内，进行了宽带无线信道测量工作。

In this paper, the improvement is to add the control of the antenna array to the gained broadband MIMO channel model.

其中，本文做的改进的是在综合得出的宽带MIMO信道模型的基础上加入了对天线阵列的控制。

This paper studies the improvement of channel model and measurement data processing on broadband wireless channel in the high-speed environment.

本文主要研究了高速环境下宽带无线信道的信道模型和测量数据处理方法的改进。

Therefore a diversity gain can be obtained in a broadband fading channel.

因此，在宽带衰落信道中可获得分集增益。

An improved nonlinear compensation algorithm in broadband PCS channel

改善宽带PCS信道的非线性补偿算法

Based on above, we compare the statistical properties of the two algorithms. Second, SAGE algorithm is analyzed. It can estimate the broadband channel angle.

在以上基础上，对两种算法的统计性能进行比较。然后分析SAGE算法，它可以对宽带信道进行的角度估计。