自动重传请求

传统解决无线网络可靠传输的方法是自动重传请求、前向纠错或者两种方法的组合使用。

The traditional methods to solve reliable transmission over the wireless network are ARQ , FEC , or a combination of both .

多重抑制自动重传请求协议的实现与仿真

Implementation and simulation for multiple rejects ARQ protocol

混合式自动重传请求（HARQ）已成为CDMA无线信道上差错控制的主要技术。

HARQ is the main error correcting technology on CDMA wireless channel .

迄今为止，有两种主要的差错控制机制：前向纠错编码（FEC，ForwardErrorCorrection）和自动重传请求（ARQ，AutomaticRepeatreQuest）。

So far there are two kinds of technique used for error control : FEC ( Forward Error Correction ) and ARQ ( Automatic Repeat Request ) .

通信系统中的差错控制方法基本可分为两大类，即前向纠错编码（FEC）和自动重传请求（ARQ）。

The first is the forward error control ( FEC ) and the second is the automatic-repeat-request ( ARQ ) .

前向纠错（FEC）和自动重传请求（ARQ）是数字通信系统中常用的两种差错控制方式。

Forward-error correction ( FEC ) and automatic repeat-request ( ARQ ) are two kinds of error-control in digital communication system .

本文根据速率兼容打孔turbo码的特性，提出了一种新的混合自动重传请求（HARQ）的递增冗余方法。

A new incremental redundancy hybrid automatic repeat request ( HARQ ) scheme based on the characters of rate compatible punctured turbo codes is proposed .

自动重传请求（ARQ）和传输控制协议（TCP）经常被分别用作链路层和传输层的错误控制机制。

Automatic repeat request ( ARQ ) schemes and transport control protocol ( TCP ) are often used as error-control techniques at the link layer and at the transport layer , respectively .

混合自动重传请求（ARQ）作为一种差错控制技术被采纳为3GPP长期演进项目（LTE）的关键技术。

Hybrid Automatic Repeat reQuest ( Hybrid ARQ ) which is an excellent error control technique has been accepted as a key technique of3GPP Long Term Evolution ( LTE ) .

在数字系统中，利用检错码或纠错码进行差错控制的方式主要分两部分：自动重传请求ARQ和前向纠错方式FEC。

In digital systems , using error detection code or error correcting codes is divided in mainly of two parts : automatic repeat request ARQ and Forward Error Correction FEC .

各种先进的无线传输技术即将在该系统中得到应用，包括混合自动重传请求（HARQ）技术。

Various advanced wireless communication technologies will be applied in this system such as Hybrid Automatic Repeat Request ( HARQ ) .

为了提高自动重传请求（ARQ）系统的通过率，在混合ARQ系统中，使用限距离译码器改善系统的性能。

Bounded distance decoders are used to improve the throughout rate in hybrid automatic repeat request systems , which are able to correct t errors or less than t and detect more than t errors .

自动重传请求（ARQ）技术可以提供一条可靠的传输链路；而链路自适应技术可以有效地对抗无线信道的时变衰落，提高无线链路的效率。

Automatic Repeat Request ( ARQ ) technology could provide a reliable transmission link . And link adaptation technology could provide resistance to channel fading effects of time variance channel availably and advance efficiency of wireless link .

介绍了链路层用于差错控制的常用技术&前向纠错编码（FEC）和自动重传请求（ARQ）结合的技术，即混合ARQ。

The most common techniques for the error control at the Layer 2 based on the Automatic Repeat request ( ARQ ) techniques used in combination with the Forward Error Correction ( FEC ) coding are described .

混合自动重传请求（HARQ）技术结合了前向纠错（FEC）和反馈重发（ARQ）这两类方法的优点，利用重传和纠错机制，提高系统的可靠性。

Hybrid automatic repeat request ( HARQ ) technology which combines the advantage of forward error correction ( FEC ) and feedback repeat request ( ARQ ) can improve the system reliability by using retransmission and error correction mechanisms .

相对于传统AMC策略，所提跨层设计可以显著降低系统总丢包率。其次，将自动重传请求（ARQ）技术引入到MIMO-AMC系统的跨层设计中。

Simulation results show the great decreasing of the system PLR compared with the traditional AMC scheme . Second , the automatic repeat request ( ARQ ) technology is introduced into the cross-layer design for MIMO-AMC systems .

混合自动重传请求（HARQ）技术能够很好地弥补无线信道时变和多径衰落对信号传输造成的影响，已在B3G系统（如LTE）中得到了广泛的应用。

Hybrid automatic repeat request ( HARQ ) technology is able to compensate the influence on signal transmission caused by time varying of the wireless channel and multipath fading , has been widely used in the B3G system ( such as LTE ) .

鉴于协作分集技术与网络编码技术存在共同的通信特点，本文主要研究了网络编码协作系统中选择自动重传请求（SR-ARQ）协议的发送端延时性能。

Considering the common communication features of cooperative diversity and network coding , this paper mainly studied the transmitting end delay performance of Selective Repeat Automatic Retransmission Request ( SR-ARQ ) in network-coded cooperative network .

d和相关信道模型下的混合式自动重传请求协议性能进行了研究。

D and correlated channel model is evaluated .

功率受限和自动重传请求条件下系统吞吐量最大化的研究

On Maximization under the Constraint of Power with ARQ Considering the Fading Channels and Buffer

自动重传请求需要重传每一个数据包，消耗大量的网络带宽，而前向纠错则会增加冗余信息。

ARQ must retransmit every lost packet , consuming much bandwidth . FEC would add redundant information to original data .

文章将基于网络编码的重传方法和传统的自动重传请求做比较，通过理论推导分析传输带宽上面的网络增益。

The article will compare the network coded retransmission scheme with the traditional ARQ , and obtain the network bandwidth gain through the theoretical derivation .