通信信道

WMN的接入方式多样，无线通信信道的种类繁多，信道资源的分配与管理对于WMN的性能优化起着十分重要的作用，多信道能够充分利用物理网络资源，增加网络容量。

There are variety of access methods and a wide range of wireless communication channel in WMN . Allocate and manage channel resources is important for optimization the performance of WMN . Multi-channel can make full use of physical network resources , increase the capacity of network .

低压载波通信信道模型的遗传算法多参数辨识

GA multi-parameter identification of low-voltage powerline carrier communication channel model

本文首先讨论了无线通信信道相关特性和数学模型，并用C语言仿真了瑞利衰落信道；

Firstly , the paper discusses characters of the wireless channel and simulates the Rayleigh fading channel feature using C language .

OFDM水声通信信道估计技术研究

Study on channel estimation technique of OFDM underwater acoustic communication system

基于OFDM的电力线通信信道估计

Channel Estimation for Power-Line Communication Based on OFDM System

基于导频的OFDM水下通信信道估计

Pilot based channel estimation for OFDM underwater communication

基于DFT的OFDM水声通信信道估计算法

Channel Estimation Algorithm in Underwater Acoustic Communication Based on DFT and OFDM

IBMMQ是面向消息的中间件（MOM），它在各应用软件间提供基于队列的通信信道。

IBM MQ is Message Oriented Middleware ( MOM ) and provides queue-based communication channels among applications .

Matlab仿真结果表明：基于Hamming窗函数设计的FIR滤波器仿真带限通信信道，效果较好。

Simulation with Matlab indicates that the FIR filter based on Hamming window is more effective .

为了使得监控系统中通信信道较为稳定，采用公网静态IP的组网方案。

In order to keep the monitoring system in a stable communication channel , the project adopts the solution of Internet static IP address .

Ka频段卫星通信信道建模及系统性能仿真

Modelling of Ka-band satellite communication channel and system performance simulation

Ka频段卫星通信信道电波传输特性及自适应TDMA抗雨衰对策的应用研究

Ka-band Satellite Communication Channel Characteristics and Application of TDMA Rain Fade Countermeasures

本文由MIMO无线通信信道容量的表达式，给出一种估算式。

A new approximate expression for the argotic capacity of multiple-input multiple-output ( MIMO ) wireless channels is presented .

远程监测终端通过GPRS网络和Internet连接，建立通信信道，进行数据传输。

The connection is built between remote monitor terminal and Internet by GPRS net , and used to build up communication channel and data transfer .

本文重点研究OFDM（正交频分复用）低压电力线通信信道估计算法。

In this paper , channel estimation for OFDM ( Orthogonal Frequency DivisionMultiplexing ) system in low-voltage power line communication is researched chiefly .

用以太网模拟远程通信信道，连接2套Stewart平台控制系统；

Ethernet was used to simulate the telecommunication channel , which linked two Stewart platforms control systems .

『正交频分复用（OFDM）是一种将通信信道分成多个等频率间隔子载波信道的通信技术。

Orthogonal Frequency Division Multiplexing ( OFDM ) is a communications technique that divides a communications channel into a number of equally spaced frequency bands .

最后，利用Ka固定卫星通信信道模型对该Turbo码方案性能进行了仿真。

A model of Ka-band fixed satellite communication channel and a corresponded simulation system with the Turbo coding scheme are created .

利用TLS加密通信信道。

Using TLS encrypts communication channel .

可以使用一些安全网络协议技术，例如IPSec，来保证网络上计算机间通信信道的安全性。

A secure network protocol technology such as IPSec might be used to secure the communication channel between computers on a network .

本文首先对无线通信信道进行了简单的介绍，在简单阐述了OFDM系统基本原理和特点的基础上，对其关键技术进行了概述。

Firstly , the wireless communication channel is introduced . The key techniques of OFDM systems are briefly described after illustrating basic principles and characteristics of OFDM systems .

研究结果还表明：采用内分组交织可以有效地抵抗Ka频段卫星通信信道的非频率选择性慢衰落。

The studies also show that simple block interleaving is very effective in combating the slow frequency nonselective fading of Ka band .

请加密各个Nagios安装之间、Nagios服务器之间以及监视代理之间的通信信道。

Encrypt communication channels between Nagios installations and between Nagios servers and your monitoring agents .

仿真结果表明：在恶劣的高误码率通信信道环境中，双态ARQ协议的效率明显优于停等式ARQ。

Simulation results prove : the efficiency of TS-ARQ is prefer to one of stop and wait ARQ protocol .

RS码是线性分组码中纠突发错误能力最强、效率最高的编码，广泛地被卫星通信信道采用；

The RS code has the strongest error-correcting ability and the highest efficiency in linear block codes for correcting burst error , and has been widely used in satellite communication channel .

对MIMO通信信道提出了一种基于矩阵初等变换的均衡算法，将其用于行对角占优的MIMO系统，则得到相应的MIMO盲均衡算法。

An equalization algorithm based on the elementary matrix transformation is proposed for the MIMO communication channel , and the corresponding blind equalization algorithm is obtained for the row-diagonally-dominant MIMO system .

针对通信信道中多径干扰引起的码间串扰（ISI）问题，这里在卡尔曼滤波均衡器的基础上提出了一种活动抽头均衡器消除码间干扰的问题。

To overcome the problem of ISI ( intersymbol interference ) caused by multipaths interference , a tap_mobile equalizer based on Kalman algorithm was proposed .

提出了一个基于不可靠的非FIFO通信信道的检查点算法，在不可靠的非FIF0的通信信道中，系统会发生报文丢失、重复接收报文和报文乱序。

We propose a coordinated checkpointing algorithm based unreliable non-FIFO channel . In unreliable non-FIFO channel , the system can lose , duplicate , or reorder messages .

根据多层前馈类神经网络（FNN）的机制，提出了一种基于多层前馈神经网络和改进的BP算法的无线通信信道的模型和仿真方法。

According to the mechanism of multilayer feed-forward neural network ( FNN ), a wireless communication channels model based on multilayer FNN with improved back propagation ( BP ) algorithm is put forward .

本文对电力系统中所采用的通信信道进行了分析和比较，结合通信技术的快速发展，提出一种基于CDMA无线信道的图像监控系统。

This article analyses and compares many communication channels used in the power system . It is up with the quick development of communication technology , propose one new image monitor system based on CDMA .