TY - GEN
T1 - A cross layer design for optical relay system employing RF subcarrier beamforming
AU - Liu, Jiang
AU - Noonpakdee, Wasinee
AU - Takano, Hiroshi
AU - Shimamoto, Shigeru
PY - 2010/12/6
Y1 - 2010/12/6
N2 - We present a relay system which uses RF over Optical (RFoO) to provide wireless communications in RF sensitive areas. Different from other relay systems, we adopt RF band phase shift beamforming to adjust phases of RF signal before modulating it into an optical band. Benefitting from it, the energy of transmitted signal is able to be concentrated in desired areas. In the designed system, the relay station performs training towards mobile devices by sending training sequences from each of pre-defined transmit beam patterns, then mobile devices indicate training index to the relay station when the received signal strength is maximized. A cross layer design is proposed, which not only improves system transmission performance with a very short beamforming setup time, but also provides a safe propagation environment, which would open a new vista to solve the wireless communication in RF sensitive area.
AB - We present a relay system which uses RF over Optical (RFoO) to provide wireless communications in RF sensitive areas. Different from other relay systems, we adopt RF band phase shift beamforming to adjust phases of RF signal before modulating it into an optical band. Benefitting from it, the energy of transmitted signal is able to be concentrated in desired areas. In the designed system, the relay station performs training towards mobile devices by sending training sequences from each of pre-defined transmit beam patterns, then mobile devices indicate training index to the relay station when the received signal strength is maximized. A cross layer design is proposed, which not only improves system transmission performance with a very short beamforming setup time, but also provides a safe propagation environment, which would open a new vista to solve the wireless communication in RF sensitive area.
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U2 - 10.1109/ICWITS.2010.5611897
DO - 10.1109/ICWITS.2010.5611897
M3 - Conference contribution
AN - SCOPUS:78649553562
SN - 9781424470914
T3 - 2010 IEEE International Conference on Wireless Information Technology and Systems, ICWITS 2010
BT - 2010 IEEE International Conference on Wireless Information Technology and Systems, ICWITS 2010
T2 - 2010 IEEE International Conference on Wireless Information Technology and Systems, ICWITS 2010
Y2 - 28 August 2010 through 3 September 2010
ER -