IEICE Communications Express
Online ISSN : 2187-0136
ISSN-L : 2187-0136
A frequency cooperative ARQ scheme for multi-band WLAN
Toshiyasu MotegiShohei KoikeTeruyuki MiyajimaMasahiro UmehiraShigeki TakedaKen-ichi Kagoshima
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2015 Volume 4 Issue 2 Pages 79-84


This letter proposes a frequency cooperative automatic repeat request (ARQ) scheme for multi-band WLAN where 60 GHz band is used for high-speed transmissions in combination with 2.4/5 GHz bands for maintaining connectivity in the presence of severe shadowing in 60 GHz band. The proposed scheme switches between 60 GHz and 2.4/5 GHz based on monitoring ACK reception and received SNR, where ACK frame is transmitted by 2.4/5 GHz for reliable retransmission. Simulation results show that the proposed ARQ scheme is less susceptible to severe shadowing caused by human activities than conventional non-cooperative ARQ schemes using only either 60 GHz or 2.4/5 GHz.

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© 2015 The Institute of Electronics, Information and Communication Engineers
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