Adaptive two-level frame aggregation in IEEE 802.11n WLAN

In order to reduce the overhead of legacy WLANs, the IEEE 802.11n standard defines two aggregation schemes, i.e., A-MSDU and A-MPDU. In general, A-MPDU outperforms A-MSDU due to its selective retransmission capability. However, A-MPDU has a fundamental restriction on the minimum separation in time b...

Full description

Saved in:
Bibliographic Details
Published in2012 18th Asia-Pacific Conference on Communications (APCC) pp. 658 - 663
Main Authors Youngsoo Kim, Monroy, Edwin, Okhwan Lee, Kyung-Joon Park, Sunghyun Choi
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.10.2012
Subjects
Barium
Degradation
frame aggregation
IEEE 802.11n
IEEE 802.11n Standard
Payloads
Receivers
Thin film transistors
Throughput
WLAN
Online AccessGet full text

Cover

More Information
Summary:In order to reduce the overhead of legacy WLANs, the IEEE 802.11n standard defines two aggregation schemes, i.e., A-MSDU and A-MPDU. In general, A-MPDU outperforms A-MSDU due to its selective retransmission capability. However, A-MPDU has a fundamental restriction on the minimum separation in time between the start of two consecutive subframes carried on the same A-MPDU. If such a gap is smaller than the minimum MPDU start spacing of the receiver, the sender should insert additional padding, thus resulting in throughput degradation. The main contribution of this paper is that we provide an adaptive aggregation scheme in which the sender conveys A-MSDUs within A-MPDUs in an adaptive manner, in order to resolve this potential problem in A-MPDU. Our analytical and simulation results demonstrate that the proposed scheme improves throughput performance over A-MPDU and A-MSDU by up to 280% and 19%, respectively.
ISBN:9781467347266
1467347264
ISSN:2163-0771
DOI:10.1109/APCC.2012.6388276