| ATXOP：一种传输机会自适应分配算法 |
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| 引用本文： | 王刚,张正勇,余荣,梅顺良. ATXOP：一种传输机会自适应分配算法[J]. 无线通信技术, 2006, 15(2): 37-42 |
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| 作者姓名： | 王刚 张正勇 余荣 梅顺良 |
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| 作者单位： | 清华大学,电子工程系,微波与数字通信国家重点实验室,北京,100084 |
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| 摘 要： | 在无线局域网(W LAN)中,由于各个站点竞争信道引起的数据帧冲突严重损害了整个网络的性能。首先分析了目前提高无线局域网性能的算法及存在的问题,在此基础上提出了一种自适应分配传输机会(TXOP)的算法ATXOP。该算法根据当前信道隙利用率,动态地调整连续传输数据帧的数目。不仅减少了由传统竞争算法引起的网络拥塞,而且避免了固定分配传输机会带来的不公平性。算法简单易行。仿真结果表明,在保证公平性的同时,该算法能够有效地提高网络的吞吐量和降低数据帧传输平均延时。
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| 关 键 词： | 无线网络 传输机会分配 拥塞控制 |
| 文章编号： | 1003-8329(2006)02-0037-06 |
| 修稿时间： | 2005-11-18 |
ATXOP:An Adaptive TXOP Allocation Algorithm |
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| WANG Gang,ZHANG Zheng-yong,YU Rong,MEI Shun-liang. ATXOP:An Adaptive TXOP Allocation Algorithm[J]. Wireless Communication Technology, 2006, 15(2): 37-42 |
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| Authors: | WANG Gang ZHANG Zheng-yong YU Rong MEI Shun-liang |
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| Abstract: | The performance of Wireless Lan(WLAN) has been deteriorated greatly due to the contention nature of the media access mechanism.After various algorithms to improve the performance of WLAN have been analyzed,an adaptive transmission opportunity allocation algorithm(ATXOP) is proposed. Through motoring the slot utilization,the algorithm can automatically determine the number of frames transmitted during this attempt.ATXOP is easy to be implemented and the simulation results show that the scheme can significantly improve the performance of WLAN on the condition that the fairness is maintained. |
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| Keywords: | wireless network TXOP allocation congestion control |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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