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KR1020080046994A 혼잡 탄력적인 링크 적응 알고리즘 无效
标题翻译：一种用于IEEE 802.11 WLANS的简单的响应友好链路适配算法
公开(公告)号：KR1020080046994A
公开(公告)日：2008-05-28
申请号：KR1020060116796
申请日：2006-11-24
申请人： 김효곤 , 김영한
发明人： 박세웅 , 김효곤 , 윤상기 , 최규영 , 김영한
IPC分类号： H04L12/28 , H04L12/24 , H04L29/02
CPC分类号： H04L47/10 , H04L1/0003 , H04L1/0015 , H04L1/1867 , H04L47/12 , H04L47/14 , H04L47/25
摘要： A COLA algorithm for IEEE 802.11 WLANs(Wireless Local Area Networks) is provided to acquire the optimal packet processing amount beyond the wide range of SNR(Signal to Noise Ratio) values and be applied to a 802.11 network quickly and directly without an additional overhead. A COLA(COngestion-resilient Link Adaptation) algorithm measures the average number of a channel-induced error by a transmission error number and the total number of transmission attempts in a given current mode if collision probability and channel error probability have no common element. If the average number of the channel induction error is greater than or the same value as a mode drop boundary in the current mode, the mode drop boundary is a preset boundary. When the mode drop boundary is one, all other link adaptation algorithms called as COLA are performed. The COLA algorithm performs each transmission attempt. The COLA is tested in 802.11a BSS having n-wireless stations to which a link adaptation algorithm is mounted. If a mode against channel quality due to the incorrectness of a mode decreased during collision, the main cause of a transmission error, is plotted, the n-wireless stations measure the COLA and prevent the collision. A mode function remains whenever n changes during the prevention of the collision.
摘要翻译：提供了用于IEEE 802.11 WLAN（无线局域网）的COLA算法以获得超出宽范围的SNR（信噪比）值的最佳分组处理量，并且可以快速且直接地应用于802.11网络，而没有额外的开销。如果碰撞概率和信道误差概率没有共同的因素，则COLA（COngestion-Friendly Link Adaptation）算法通过传输错误号和给定的当前模式中的传输尝试的总数来测量信道引起的误差的平均数。如果在当前模式下平均通道感应误差数大于或等于模式下降边界值，则模式下降边界是预设的边界。当模式下降边界为1时，执行称为COLA的所有其他链路自适应算法。 COLA算法执行每个传输尝试。在具有安装了链路自适应算法的n个无线站的802.11a BSS中测试COLA。如果在碰撞期间由于模式不正确导致的信道质量模式降低，则绘制传输错误的主要原因，n无线站测量COLA并防止碰撞。在防止碰撞过程中n改变时，模式功能保持不变。

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