TY - JOUR
T1 - Multi-hop wireless transmission in multi-band WLAN systems
T2 - Proposal and future perspective
AU - Fadlullah, Zubair Md
AU - Kawamoto, Yuichi
AU - Nishiyama, Hiroki
AU - Kato, Nei
AU - Egashira, Naoto
AU - Yano, Kazuto
AU - Kumagai, Tomoaki
N1 - Funding Information:
It is worth noting that the above mentioned work is done by Advanced Telecommunications Research Institute International (ATR) supported by the Ministry of Internal Affairs and Communications, Japan, under a grant entitled “Research and Development of Spectral-Efficiency Improvement Technology Employing Simultaneous Transmission over Multiple License-Exempt Bands.” In addition, we have also started an activity to standardize our realized multi-band WLAN in the IEEE 802.11 standard [2, 3].
Publisher Copyright:
© 2002-2012 IEEE.
PY - 2019/2
Y1 - 2019/2
N2 - Recently, WLANs using multiple frequency bands (e.g., 5 GHz, 2.4 GHz, and 920 MHz) have become popular as a means to increase spectral efficiency. However, during multi-hop transmissions in such multi-band WLANs, the relay node experiences a significant increase in delay and loss of data frames. This happens because of the difference of link rates between the receiving and sending sides of the relay node. In order to address this problem, we consider the channel conditions of each band on either side of the relay. Accordingly, the receiving and sending rates at the relay node are measured and calculated, respectively. Based on the measured receiving rate and calculated sending rate, we propose an algorithm for the relay node to determine the optimal coding rate and modulation method so as to dynamically control the best band and channel selection for the sending side. Simulation results demonstrate the effectiveness of our proposed algorithm in terms of improvement of delay and transmission failure probability.
AB - Recently, WLANs using multiple frequency bands (e.g., 5 GHz, 2.4 GHz, and 920 MHz) have become popular as a means to increase spectral efficiency. However, during multi-hop transmissions in such multi-band WLANs, the relay node experiences a significant increase in delay and loss of data frames. This happens because of the difference of link rates between the receiving and sending sides of the relay node. In order to address this problem, we consider the channel conditions of each band on either side of the relay. Accordingly, the receiving and sending rates at the relay node are measured and calculated, respectively. Based on the measured receiving rate and calculated sending rate, we propose an algorithm for the relay node to determine the optimal coding rate and modulation method so as to dynamically control the best band and channel selection for the sending side. Simulation results demonstrate the effectiveness of our proposed algorithm in terms of improvement of delay and transmission failure probability.
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U2 - 10.1109/MWC.2017.1700148
DO - 10.1109/MWC.2017.1700148
M3 - Article
AN - SCOPUS:85030749082
SN - 1536-1284
VL - 26
SP - 108
EP - 113
JO - IEEE Wireless Communications
JF - IEEE Wireless Communications
IS - 1
M1 - 8057299
ER -