An adaptive frame length two-level frame aggregation method in 802.11n
Rui Guo · Electronic Design Engineering · 2013
Focusing on the problem that the wireless MAC layer throughput is limited,the 802.11n frame aggregation mechanism and the saturation throughput using DCF access mechanism in the error channel are analyzed.Furthermore,the impact of frame length and BER on the throughput is discussed.Then a novel adaptive frame length two-level aggregation is proposed.According to the BER,the first level of aggregation numbers is adjusted adaptively,so that the aggregation length can achieve the best in the BER,moreover the throughput can reach maximum in the BER.Theoretical analysis and simulation results show that compared with the aggregation method in the original agreement,the proposed method has greatly improved the system throughput by selecting the appropriate frame aggregation length in the channel with changing BER.