东南大学学报（自然科学版）2011，Vol.41Issue(4)：665-671,7.DOI:10.3969/j.issn.1001-0505.2011.04.002
基于自适应帧聚合机制的无线局域网吞吐量分析
Throughput analysis in wireless local area network based on adaptive frame aggregation
摘要
Abstract
Based on the analysis of two kinds of medium access control (MAC) layer frame aggregation , A-MSDU and A-MPDU, in IEEE 802. 11 n, physical layer super-frame is introduced against the problems of same modulation/coding format for all sub-frames and frame length limitation arising from MAC layer frame aggregation. Adaptive frame aggregation mechanism is adopted to improve the system throughput performance. The saturation throughputs of various frame aggregation methods and the frame fragmentation using distributed coordination function (DCF) access mechanism under noisy channels are derived. The effects of number of stations, frame lengths and access modes on saturation throughput are discussed. The frame delay of successfully receipt under DCF access mechanism and the restrictions on maximum frame aggregation length are analyzed. The simulation results show that the system throughput can be maximized by adaptive frame aggregation mechanism through choosing the right method of frame aggregation or frame fragmentation under specific bit rate error and delay requirement.关键词
无线局域网/吞吐量/帧聚合/物理层超帧Key words
WLAN( wireless local areal networks)/ throughput/frame aggregation/physical super-frame分类
信息技术与安全科学引用本文复制引用
沈丹萍,沈连丰,吴名,鲍楠,孙元凯,王欣..基于自适应帧聚合机制的无线局域网吞吐量分析[J].东南大学学报（自然科学版）,2011,41(4):665-671,7.基金项目
国家自然科学基金资助项目(60872004) （60872004）
国家科技重大专项资助项目(2010ZX03005-001-01) （2010ZX03005-001-01）
东南大学移动通信国家重点实验室自主研究课题资助项目(2010A08). （2010A08）
