TY - GEN
T1 - Optimal Waveform Design for Integrated Localization and Communication in OFDM Systems
AU - Han, Lincong
AU - Liu, Rongke
AU - Lv, Xianglong
AU - Wang, Zijie
AU - Zhu, Qian
N1 - Publisher Copyright:
© 2022 IEEE.
PY - 2022
Y1 - 2022
N2 - With the growing demand of the fusion of communication and localization functionalities, the integrated localization and communication (ILAC) techniques have drawn significant research interests. In this paper, we focus on the waveform design in orthogonal frequency division multiplexing (OFDM) systems to improve the performance of both communication and localization. A dual-functional system where the base station transmits downlink signals to communicate with multiple users as well as provide localization service simultaneously is established. The performance metrics of communication and localization are theoretically analyzed. The waveform is firstly optimized to minimize the error bounds of position estimation. Then the multiuser interference is minimized to guarantee communication performance through a further waveform optimization algorithm. Finally, the performance trade-off of ILAC is investigated in consideration of different weights of these two functionalities, and the corresponding waveform design method is proposed. Through numerical results, we show that the proposed waveform optimization methods are able to improve the performance of ILAC in OFDM systems, and is feasible to cover heterogeneous ILAC scenarios.
AB - With the growing demand of the fusion of communication and localization functionalities, the integrated localization and communication (ILAC) techniques have drawn significant research interests. In this paper, we focus on the waveform design in orthogonal frequency division multiplexing (OFDM) systems to improve the performance of both communication and localization. A dual-functional system where the base station transmits downlink signals to communicate with multiple users as well as provide localization service simultaneously is established. The performance metrics of communication and localization are theoretically analyzed. The waveform is firstly optimized to minimize the error bounds of position estimation. Then the multiuser interference is minimized to guarantee communication performance through a further waveform optimization algorithm. Finally, the performance trade-off of ILAC is investigated in consideration of different weights of these two functionalities, and the corresponding waveform design method is proposed. Through numerical results, we show that the proposed waveform optimization methods are able to improve the performance of ILAC in OFDM systems, and is feasible to cover heterogeneous ILAC scenarios.
KW - Cramér Rao lower bound
KW - Integrated localization and communication
KW - orthogonal frequency division multiplexing
KW - waveform design
UR - https://www.scopus.com/pages/publications/85151622747
U2 - 10.1109/ICCC56324.2022.10065752
DO - 10.1109/ICCC56324.2022.10065752
M3 - 会议稿件
AN - SCOPUS:85151622747
T3 - 2022 IEEE 8th International Conference on Computer and Communications, ICCC 2022
SP - 868
EP - 874
BT - 2022 IEEE 8th International Conference on Computer and Communications, ICCC 2022
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 8th IEEE International Conference on Computer and Communications, ICCC 2022
Y2 - 9 December 2022 through 12 December 2022
ER -