JCP 2014 Vol.9(3): 678-687 ISSN: 1796-203X
doi: 10.4304/jcp.9.3.678-687
doi: 10.4304/jcp.9.3.678-687
Throughput Estimates for A-MPDU and Block ACK Schemes Using HT-PHY Layer
Teuku Yuliar Arif1, Riri Fitri Sari2
1Electrical Engineering Department, Faculty of Engineering, Syiah Kuala University, Banda Aceh, Indonesia
2Electrical Engineering Department, Faculty of Engineering, University of Indonesia, Depok, Indonesia
Abstract—IEEE 802.11n standard has introduced the new schemes in MAC and HT-PHY layers to improve network throughput. The new schemes in MAC layer are A-MSDU, A-MPDU and Block ACK. In the HT-PHY layer there are MIMO transmission using up to 4 spatial streams, 40 MHz bandwidth channel and 400 ns guard interval. In this paper, we proposed an analytical model that can be used to estimates the throughput of A-MPDU and Block ACK schemes using HT-PHY layer. In our model, there are six different slot types, which are A-MPDU transmission slot, A-MPDU collision slot, A-MPDU sub-frame error slot, BAR error slot and BA error slot. We derive the equations that can be used to calculate the time duration and the probability occurrences of each type slot. Our analytical model also considers the anomalous slot phenomenon in EDCA scheme and frame error probability in HT-PHY. The simulation results using matlab show our analytical model can be used to estimates the throughput of MSDU transmission using A-MPDU and Block ACK schemes. AMPDU and Block ACK schemes can be used to improve the MAC throughput especially for MSDU size is bigger than 400 bytes.
Index Terms—Throughput, A-MPDU, Block ACK, HTPHY, IEEE 802.11n
2Electrical Engineering Department, Faculty of Engineering, University of Indonesia, Depok, Indonesia
Abstract—IEEE 802.11n standard has introduced the new schemes in MAC and HT-PHY layers to improve network throughput. The new schemes in MAC layer are A-MSDU, A-MPDU and Block ACK. In the HT-PHY layer there are MIMO transmission using up to 4 spatial streams, 40 MHz bandwidth channel and 400 ns guard interval. In this paper, we proposed an analytical model that can be used to estimates the throughput of A-MPDU and Block ACK schemes using HT-PHY layer. In our model, there are six different slot types, which are A-MPDU transmission slot, A-MPDU collision slot, A-MPDU sub-frame error slot, BAR error slot and BA error slot. We derive the equations that can be used to calculate the time duration and the probability occurrences of each type slot. Our analytical model also considers the anomalous slot phenomenon in EDCA scheme and frame error probability in HT-PHY. The simulation results using matlab show our analytical model can be used to estimates the throughput of MSDU transmission using A-MPDU and Block ACK schemes. AMPDU and Block ACK schemes can be used to improve the MAC throughput especially for MSDU size is bigger than 400 bytes.
Index Terms—Throughput, A-MPDU, Block ACK, HTPHY, IEEE 802.11n
Cite: Teuku Yuliar Arif, Riri Fitri Sari, "Throughput Estimates for A-MPDU and Block ACK Schemes Using HT-PHY Layer," Journal of Computers vol. 9, no. 3, pp. 678-687, 2014.
General Information
ISSN: 1796-203X
Abbreviated Title: J.Comput.
Frequency: Bimonthly
Abbreviated Title: J.Comput.
Frequency: Bimonthly
Editor-in-Chief: Prof. Liansheng Tan
Executive Editor: Ms. Nina Lee
Abstracting/ Indexing: DBLP, EBSCO, ProQuest, INSPEC, ULRICH's Periodicals Directory, WorldCat,etc
E-mail: jcp@iap.org
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