Performance of Uplink Packetized LTE-A Signal Transmission on a Cascaded Radio-on-Radio and Radio-over-Fiber System

DOI Web Site 参考文献13件
  • TIEN DAT Pham
    Photonic Network Research Institute, National Institute of Information and Communications Technology
  • KANNO Atsushi
    Photonic Network Research Institute, National Institute of Information and Communications Technology
  • KAWANISHI Tetsuya
    Photonic Network Research Institute, National Institute of Information and Communications Technology

抄録

In this paper, we propose a flexible and high-capacity front-haul link for the uplink transmission of high-speed mobile signals using a cascade of radio-on-radio (RoR) and radio-over-fiber (RoF) systems. To emulate the cases that may occur in the uplink direction, we experimentally investigate the performance of superposing an uplink bursty LTE-A signal on the cascaded system using optical packet signal transmission. The performance of systems using different types of erbium-doped fiber amplifiers (EDFAs), including a high-transient EDFA, an automatic-gain-control EDFA, and a burst-mode (BM) EDFA is evaluated and compared. We confirm that the dynamic transience of the EDFAs has a significant influence on the signal performance. By using a BM-EDFA, we confirm successful transmission of the uplink packetized LTE-A signal on the cascaded system. Both the measured error vector magnitude and the received optical power range metrics exceed the requirements. We also estimate the maximum transmission range of the RoR link, and it is confirmed that a sufficiently long range could be achieved for the applications in mobile front-haul networks.

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