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Robust wireless transmission utilizing PPDU-based aggregation technique for next generation wireless LANs

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3 Author(s)
Il-gu Lee ; Electronics and Telecommunications Research Institute, 161, Gajeong-dong, Yuseong-gu, Daejeon, Republic of Korea ; Sok-Kyu Lee ; Ju-Phil Cho

In this paper, we propose a robust transmission scheme using aggregated physical protocol data units (APPDU). The proposed method includes a media access control (MAC) layer control for determining the number of preambles to be inserted based on the feed-back reply signal from a receiver; the generation of a multi-preamble aggregation frame by inserting the determined number of preambles into frames received from an upper layer; a physical layer for forming the multi-preamble aggregation frame generated in a data processing unit by using a physical layer frame; and the transmission of the formed multi-preamble aggregation frame. The proposed technique obtains performance improvement of about 3 dB in terms of SNR and 35% in terms of throughput efficiency.

Published in:

IEEE Communications Letters  (Volume:14 ,  Issue: 3 )