Nack

An Adaptive On-demand / NACK Channel Quality Feedback Scheme for HSDPA

一种基于NACK的HSDPA自适应信道质量反馈技术

Instead , if it is missing just one message in a million , it can Nack just the missing message .

其实，如果在一百万消息中有一条被丢失，那么RMD可以仅对丢失的消息要求Nack。

Candidate cooperative nodes uses NACK frame to select appropriate cooperative nodes by selection algorithms , and further calculate the send rate needed .

候选协作节点利用NACK报文通过协作节点选择算法竞争选取合适的协作节点，并在此基础上计算出所需发送速率。

In this paper , a work mechanism of CQI for TD-SCDMA and a adaptive on-demand / NACK channel quality feedback scheme is introduced .

本文介绍了TD-SCDMA模式下HSDPA中CQI的工作机制和一种基于NACK的自适应信道质量反馈技术。

In short , we obtain a few breakthroughs as follows : Firstly , we propose two methods of suppressing NACK based on the timer .

本文提出了两种抑制NACK的定时器设置方法。

The protocol which uses NACK confirmation method , in the network as long as there is a NACK , can effectively solve the feedback information explosion problem .

协议应用NACK确认方法，在网络中只要有一个NACK，就能有效解决反馈消息爆炸问题。

Timer-Based Method of NACK Suppression

抑制NACK的定时器设置方法

The algorithm includes four mechanisms : loss detection , NACK handling , local recovery and scoped retransmission , so it can be used in the area of reliable multicast .

该算法包括下面四个机制：丢失检测，NACK处理，本地恢复和局部重传，因此该算法可以用于可靠组播。

Self-adjusted FEC coding and NACK technologies are combined and employed by this model to achieve the purpose & ensuring reliable multicast on satellite and IP network combined platform .

其中，该模型使用自适应的FEC编码与NACK相结合技术来达到在天地网上可靠多播通信的目的。

Send nodes determines appropriate send rate by RTS / CTS control frame . Whenever communication fails , the receive node uses NACK frame to invoke the retransmission mechanism .

发送节点通过RTS/CTS控制报文确定合适发送速率，当一次通信失败时，接收节点通过NACK确认报文开启重传机制。

Our algorithm includes five mechanisms : loss detection , replier selection , NACK handling , local recovery and scoped retransmission , buffer management and periodical ACK feedback .

该算法包括下列五个机制：丢失检测、答复者选择、NACK处理、本地恢复和局部重传、缓存管理与周期ACK反馈。

The article also tests the significant effect on NACK compression of the improved protocol through the NS system simulation experiment . Finally , the paper introduces the application of the improved protocol in the intelligent public transport projects .

文章还通过NS系统仿真实验，验证了改进的协议在NACK压缩上的显著效果。最后，文章介绍了改进的协议在智能公交项目中的应用。

In Thousand Oaks , Calif. , Adina Nack keeps the thermostat at 28 -- and lets her toddler dance around the house in a bathing suit , herself with cool water from a spray bottle .

在加州的千橡树镇，艾蒂娜·奈克把空调温度调到28度，并让自己蹒跚学步的小孩穿着泳衣在家里乱走，还用喷水瓶给自己洒凉水降温。

We propose a method to decide the delay time . We divide time equally and use probabilistic method based on exponentially distribution to select the delay time in a segment . By analysis for up to 1010 receivers , we show the NACK implosion is avoided .

接收者延时发送NACK，可以避免NACK爆炸，文中提出了基于指数分布、均匀分段延时的方法，并对其性能进行了分析，可知该方法抑制NACK的能力达到1010。

In Thousand Oaks , Calif. , Adina Nack keeps the thermostat at28 & and lets her toddler dance around the house in a bathing suit , spritzing herself with cool water from a spray bottle .

在加州的千橡树镇，艾蒂娜.奈克把空调温度调到28度，并让自己蹒跚学步的小孩穿着泳衣在家里乱走，还用喷水瓶给自己洒凉水降温。

In Thousand Oaks , Calif. , Adina Nack keeps the thermostat at 28 - and lets her toddler dance around the house in a bathing suit , spritzing herself with cool water from a spray bottle .

家住加州千橡树镇的艾蒂娜奈克把空调温度调到28度，并让自己蹒跚学步的小孩穿着泳衣在家里乱走，还用喷水瓶给自己洒凉水降温。

The inducing effects were not evident under the treatment of two salts of similar concentration like KNO3 and NaCK KNO3 and ( NH4 ) 2SO4 , NaCl and ( NH4 ) 2SO4 mixed with 0.1 % ( w / v ) lysozyme .

用相近浓度的双盐，即KNO3和NaCl、KNO3和（NH4）2SO4、NaCl和（NH4）2SO4分别配合0.1%的溶菌酶处理，诱导效果亦不佳。