A gifted and respected sound healer, Chinling has been an expressive arts consultant, teacher, and facilitator for more than 10 years.

According to the concrete conditions of the collision node, it carries on rational adjustment to the size of contention window.

根据发生冲突节点的具体情况，对竞争窗口大小进行合理的调整。

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However, it is observed that the primary deficiency of the current MAC protocol is to use the binary increasing-only mechanism. DCF absorbs the number of collisions as the condition to derive the contention window ( CW).

然而，我们可以看到现行MAC协议的主要缺点是使用二进制增长的机制，DCF以冲突次数作为条件来设计竞争窗口（CW）。

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The optimal backoff window size and contention window size are given, and the transmission efficiency is calculated by analyzing the collision probability of contention request.

通过对竞争请求的冲突概率进行分析，推出了回退窗口和竞争窗口的最佳分配尺寸，并计算了不同业务流数量下系统可达到的最大传输效率。

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Multi-rate optimized contention window backoff algorithm in WLAN

多速率最优竞争窗口的WLAN退避算法

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Improve contention and lock window during indexing and reduce the number of index opening/ closing.

在索引期间对竞争和锁窗口的改进，同时降低了索引打开/关闭的次数。

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According to the estimation of the number of competing terminals, the optimized minimum contention window was calculated to improve the performance of IEEE 802.11 DCF in this algorithm.

该算法根据估计竞争信道的终端个数，计算最小竞争窗口的最佳值，并以此自适应优化IEEE802.11DCF协议的性能。

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The slow-start decrease scheme for the contention window control in IEEE 802.11 WLANs

一种IEEE802.11中慢启动递减的竞争窗口控制算法

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Using this model, we analyzed the influence of some important parameters, such as packet size, forward error correction coding scheme and contention window size, to the system performance.

利用这一模型，分析了包长、纠错编码方式的选取以及竞争窗口长度等重要参数的选取对系统性能的影响。

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Using optimal constant contention window to optimize performance of WLAN

最优常数竞争窗口对WLAN的性能优化研究

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Novel algorithm of dynamic contention window adjustment for 802.11 DCF

基于竞争窗口动态调整的802.11DCF改进算法

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We also propose several schemes that regulate backoff contention window adaptively to achieve more fairness between ACs.

再者，我们提出动态允入控制调整方法，来确保无线网路的公平原则。

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Based on these observations, a novel adaptive backoff algorithm is proposed, which dynamically adjusts the initial contention window according to the TCP packet length.

据此，提出了一种根据TCP报文长度动态调节初始回退窗口大小的自适应回退MAC协议改进算法。

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When the difference of numbers of the packets in each virtual buffer reached the predefined threshold, MAC enlarges the contention window size of the source node, the number of buffered packets of which is more than the other.

当两个虚拟缓冲内的数据包数量之差达到预设阈值时，MAC扩大数据包较多的缓冲区所属流的源节点的竞争窗口大小。

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Then a probability model is used to quantitatively analyze the relation between the TCP unfairness and MAC parameters, which shows that the TCP flow fairness heavily correlates with the TCP packet length, and increasing the initial contention window of the MAC protocol can improve the fairness effectively.

然后，利用概率模型定量分析了TCP不公平性与MAC协议参数之间的关系，发现TCP流的公平性与TCP报文长度直接相关，并且增加MAC协议初始竞争窗口的大小能够有效提高公平性。

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A Multi-Priority Algorithm with RTS Multi-Reservation and Contention Window Self-Adaptive Adjusting in WLAN

RTS多预约和自适应窗口调整的WLAN多优先级算法

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Simulation results show that, combining rate adaptation with contention window control can achieve much better network performances, including throughput and fairness, than only using rate adaptation in IEEE 802.11 multi-rate wireless LANs.

模拟实验表明，在多速率无线局域网中，竞争窗口控制算法的引入，可以在已有的速率调整算法的基础上，使网络性能大大提高，获得更好的吞吐量和公平性。

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Configurable random backoff process parameters consist of initial contention window, maximum backoff stage number, etc.

可配置的随机回退机制，即使用随机回退机制中的协议参数来进行优先级区分。

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But the more smaller in network load, because of the linear decrease mechanism of MILD, the more slower changes in contention window size will reduce the utilization ratio of the channel, cause the deterioration of delay performance.

而MILD的线性下降策略在网络负载较小时，竞争窗口值变化太慢，降低信道的利用率，造成延迟性能的恶化。

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Because the law is essentially a businessman autonomy, must be the highest for the concept of autonomy, but the main different is the free consultation on company law in harmony to achieve the objectives of the most common form.

因为公司法从本质上来说是一部商人自治法，必须要以意思自治为最高理念，而且不同主体的自由协商也是公司法上达至和谐目标的最常见形式。

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This paper shall first introduce a survey report by the famous KPMG Management Consultation Company concerning the responsibility of businesses to society and then move to a rational discussion of the status quo of the social responsibility of China's businesses and some pertinent measures to rectify the situation.

本文将从著名的毕马威管理咨询公司发表的一份企业责任调查报告开始，拟从理性的角度探讨企业社会责任在中国的现状以及改善对策。

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