TY - GEN
T1 - Optimal Time Allocation in Relay Assisted Backscatter Communication Systems
AU - Lyu, Bin
AU - Yang, Zhen
AU - Xie, Tianyi
AU - Gui, Guan
AU - Adachi, Fumiyuki
N1 - Funding Information:
This work was supported in part by the National Natural Science Foundation of China (61671252), the Key University of Science Research Project of Jiangsu Province (No. 14KJA510003), Jiangsu Distinguished Professor Grant (No. RK002STP16001), “1311 Talent Plan” of NUPT, and the Innovation Program of Graduate Education of Jiangsu Province (No. KYLX15-0828).
Publisher Copyright:
© 2018 IEEE.
PY - 2018/7/20
Y1 - 2018/7/20
N2 - In this paper, we consider a relay assisted backscatter communication (RaBackCom) system, where a user backscatters incident signals from a carrier emitter (CE) to a relay and a receiver simultaneously, and then the relay forwards the user's information to the receiver for throughput improvement. We consider two cases that the relay is with/without an embedded energy source. Specifically, if the relay does not have an energy source, it first harvests energy from the signals from the CE and then uses its harvested energy for information forwarding. For both cases, we formulate time allocation problems on the user's information backscattering, the user's information forwarding, or the relay's energy harvesting to maximize the system throughput, and then derive closed-form solutions. Simulation results demonstrate the advantages of the proposed relay cooperation scheme with the optimal time allocation in terms of system throughput.
AB - In this paper, we consider a relay assisted backscatter communication (RaBackCom) system, where a user backscatters incident signals from a carrier emitter (CE) to a relay and a receiver simultaneously, and then the relay forwards the user's information to the receiver for throughput improvement. We consider two cases that the relay is with/without an embedded energy source. Specifically, if the relay does not have an energy source, it first harvests energy from the signals from the CE and then uses its harvested energy for information forwarding. For both cases, we formulate time allocation problems on the user's information backscattering, the user's information forwarding, or the relay's energy harvesting to maximize the system throughput, and then derive closed-form solutions. Simulation results demonstrate the advantages of the proposed relay cooperation scheme with the optimal time allocation in terms of system throughput.
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U2 - 10.1109/VTCSpring.2018.8417655
DO - 10.1109/VTCSpring.2018.8417655
M3 - Conference contribution
AN - SCOPUS:85050969292
T3 - IEEE Vehicular Technology Conference
SP - 1
EP - 5
BT - 2018 IEEE 87th Vehicular Technology Conference, VTC Spring 2018 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 87th IEEE Vehicular Technology Conference, VTC Spring 2018
Y2 - 3 June 2018 through 6 June 2018
ER -