TITLE:
A New Aggregation Based Scheduling Method for Rapidly Changing IEEE 802.11ac Wireless Channels
AUTHORS:
Oran Sharon, Yaron Alpert
KEYWORDS:
802.11ac, Aggregation, Scheduling, Link Adaptation, Reliability
JOURNAL NAME:
Wireless Sensor Network,
Vol.8 No.8,
August
5,
2016
ABSTRACT: In this paper we suggest a novel idea to
improve the Throughput of a rapidly changing WiFi channel by exploiting the
standard aggregation schemes in IEEE 802.11ac networks. The idea is based on
blindly transmitting several copies of the first 4 MAC Protocol Data Units
(MPDU) in the Transmission Window. This increases the probability that the
window moves forward, enabling the transmission of new MPDUs and resulting in
increased Throughput. It turns out that transmitting 2 copies of each of the
first 4 MPDUs yields the best Throughput gain, in the order of 50% - 60% in PHY
rates of 1.3 - 3.5 Gbps and few hundreds of bytes MPDUs. The proposed idea has
advantage over Link Adaptation since it reduces the actual PHY rate only for
the transmission of few MPDUs while Link Adaptation reduces the PHY rate for
all the transmissions.