TY - GEN
T1 - Fractional Pilot Reuse with Vertical Sectorization in Massive MIMO Systems
AU - Fan, Jiancun
AU - Li, Weiqi
AU - Zhang, Ying
AU - Deng, Jianguo
N1 - Publisher Copyright:
© 2017 IEEE.
PY - 2017/11/14
Y1 - 2017/11/14
N2 - In this paper, we analyze the performance of the fractional pilot reuse (FPR) scheme with vertical sectorization in massive multiple-input multiple-output (MIMO) system. In this scheme, users are classified into the cell-center ones in inner vertical sector and the cell-edge ones in outer vertical sector according to their signal-to-interference-plus- noise ratios (SINRs) at the receiver side. Then, the cell-edge users with low SINRs in different cells use different pilots to avoid strong interference from adjacent sector while the cell-center users with high SINRs in different cells reuse the same pilots to improve the pilot efficiency. In order to identify the cell-center users and the cell-edge ones, we first express the SINR to the function of the distance between the user and the base station (BS) and then find the relationship between the network throughput and the distance threshold. By using a proposed heuristic iterative algorithm, the optimal distance threshold is found to maximize the network throughput. The analytical and simulation results demonstrate advantages of the proposed scheme compared with the conventional FPR scheme.
AB - In this paper, we analyze the performance of the fractional pilot reuse (FPR) scheme with vertical sectorization in massive multiple-input multiple-output (MIMO) system. In this scheme, users are classified into the cell-center ones in inner vertical sector and the cell-edge ones in outer vertical sector according to their signal-to-interference-plus- noise ratios (SINRs) at the receiver side. Then, the cell-edge users with low SINRs in different cells use different pilots to avoid strong interference from adjacent sector while the cell-center users with high SINRs in different cells reuse the same pilots to improve the pilot efficiency. In order to identify the cell-center users and the cell-edge ones, we first express the SINR to the function of the distance between the user and the base station (BS) and then find the relationship between the network throughput and the distance threshold. By using a proposed heuristic iterative algorithm, the optimal distance threshold is found to maximize the network throughput. The analytical and simulation results demonstrate advantages of the proposed scheme compared with the conventional FPR scheme.
UR - https://www.scopus.com/pages/publications/85040606637
U2 - 10.1109/VTCSpring.2017.8108331
DO - 10.1109/VTCSpring.2017.8108331
M3 - 会议稿件
AN - SCOPUS:85040606637
T3 - IEEE Vehicular Technology Conference
BT - 2017 IEEE 85th Vehicular Technology Conference, VTC Spring 2017 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 85th IEEE Vehicular Technology Conference, VTC Spring 2017
Y2 - 4 June 2017 through 7 June 2017
ER -