摘要
提出一种MAC层竞争信道的FRA算法。FRA算法以实验测得的数据帧长和信道速率作为调节CWmin的因子,提高了发送大数据帧或高速信道节点的信道占用时间。实验结果表明,该算法在速率、帧长各异的无线网络环境中,网络总吞吐率比DCF协议提高约70%。
A MAC algorithm Frame-cum-Rate Adjustment（FRA） is proposed to contend for the wireless channel. In FRA, the value of CWmin is adjusted based on frame size acquired by lots of experiments and transmission rate. The wireless station with large frame size and high transmission rate can obtain high probability to access wireless channel. Simulation results show that compared with DCF, FRA increases the network throughput by 70% when different frame sizes and transmission rates coexist.
出处
《计算机工程》
CAS
CSCD
北大核心
2010年第17期123-125,128,共4页
Computer Engineering
基金
国家自然科学基金资助项目(60673164)
湖南省杰出青年基金资助项目(06JJ10009)
新世纪优秀人才支持计划基金资助项目(NCET-05-0683)
长江学者和创新团队发展计划基金资助项目(IRT0661)
关键词
数据帧长
发送速率
无线局域网
data frame size
transmission rate
Wireless Local Area Network（WLAN）
