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| IEEE802.11中的一种新型信道竞争退避算法 | |
| 引用本文： | 苏俊生,戴志平,王国强,叶锋.IEEE802.11中的一种新型信道竞争退避算法[J].空军雷达学院学报,2012(3):218-220. |
| 作者姓名： | 苏俊生 戴志平 王国强 叶锋 |
| 作者单位： | 1. 空军预警学院研究生管理大队,武汉430019 2. 空军预警学院四系,武汉430019 3. 空军通信部,北京100000 |
| 摘 要： | 为了提高分布式协调功能(DCF)的性能,提出了计算暂停次数退避算法(SCB).该算法采用指数加权移动平均(EWMA)对其平滑,建立竞争窗口值动态相关性,实现了合理分配、规划信道带宽.仿真结果表明,SCB算法在实际吞吐量、公平性、碰撞速率上优于二进制指数退避算法(BEB)、指数递增指数递减退避算法(EIED)、自适应增强型分布式协调功能算法(AEDCF) |
| 关 键 词： | 无线局域网 分布式协调功能 退避算法 竞争窗口 |
New Back-off Algorithm for Channel Contention in IEEE 802.11 |
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| SU Jun-sheng,DAI Zhi-ping,WANG Guo-qiang,YE Feng.New Back-off Algorithm for Channel Contention in IEEE 802.11[J].Journal of Air Force Radar Academy,2012(3):218-220. | |
| Authors: | SU Jun-sheng DAI Zhi-ping WANG Guo-qiang YE Feng |
| Affiliation: | 1 .Department of Graduate Management, Air Force Early Warning Academy, Wuhan 430019, China; 2.No.4 Department, Air Force Early Warning Academy, Wuhan 430019, China; 3.Department of Telecommunication of Air Force, Beijing 100000, China) |
| Abstract: | To enhance the performance of distributed coordination functions （DCF）, this paper proposes a new standstill compute back-off （SCB） algorithm, in which, the exponentially weighted moving average （EWMA） is employed for smoothing it, and the dynamic relevance of contention window is set up, thus realizing the reasonable assignment and planning of channel bandwidth. Simulation results show that the SCB algorithm is superior to the algorithms of binary exponential back-off （BEB）, exponentially increasing （El） and exponentially decreasing （ED）, and adaptive enhancing distributed coordination function （AEDCF）, in terms of the actual throughput, fairness and collision rate. |
| Keywords: | wireless local area network distributed coordination function back-off algorithm contentionwindow |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |