TY - JOUR
T1 - Experimental full duplex simultaneous transmission of LTE over a DWDM directly modulated RoF system
AU - Kanesan, Thavamaran
AU - Ng, Wai Pang
AU - Ghassemlooy, Zabih
AU - Lu, Chao
N1 - First published online 10th December 2013.
PY - 2014
Y1 - 2014
N2 - In this paper, we are experimentally demonstrating the seamless integration of full duplex system frequency division duplex (FDD) long term evolution (LTE) technology with radio-over-fibre (RoF) for eNodeB (eNB) coverage extension. LTE is composed of quadrature phase shift keying (QPSK), 16-quadrature amplitude modulation (QAM) and 64-QAM, modulated onto orthogonal frequency division multiplexing (OFDM) and single carrier-frequency division multiplexing for downlink (DL) and uplink (UL) transmissions, respectively. The RoF system is composed of dedicated directly modulated lasers for DL and UL with dense wavelength division multiplexing (DWDM) for instantaneous connections, and Rayleigh backscattering and nonlinear interference mitigations. DL and UL signals have varying carrier frequencies and are categorized as broad frequency spacing (BFS), intermediate frequency spacing (IFS) and narrow frequency spacing (NFS). The adjacent channel leakage ratio (ACLR) for DL and UL with 64-QAM are similar for all frequency spacing while the crosstalk is observed for NFS. For the best case scenario for DL and UL transmissions we achieve error vector magnitude (EVM) values of ~2.30%, ~2.33%, and ~2.39% for QPSK, 16-QAM and 64-QAM, respectively while for the worst case scenario with NFS EVM is increased by 0.40% for all schemes.
AB - In this paper, we are experimentally demonstrating the seamless integration of full duplex system frequency division duplex (FDD) long term evolution (LTE) technology with radio-over-fibre (RoF) for eNodeB (eNB) coverage extension. LTE is composed of quadrature phase shift keying (QPSK), 16-quadrature amplitude modulation (QAM) and 64-QAM, modulated onto orthogonal frequency division multiplexing (OFDM) and single carrier-frequency division multiplexing for downlink (DL) and uplink (UL) transmissions, respectively. The RoF system is composed of dedicated directly modulated lasers for DL and UL with dense wavelength division multiplexing (DWDM) for instantaneous connections, and Rayleigh backscattering and nonlinear interference mitigations. DL and UL signals have varying carrier frequencies and are categorized as broad frequency spacing (BFS), intermediate frequency spacing (IFS) and narrow frequency spacing (NFS). The adjacent channel leakage ratio (ACLR) for DL and UL with 64-QAM are similar for all frequency spacing while the crosstalk is observed for NFS. For the best case scenario for DL and UL transmissions we achieve error vector magnitude (EVM) values of ~2.30%, ~2.33%, and ~2.39% for QPSK, 16-QAM and 64-QAM, respectively while for the worst case scenario with NFS EVM is increased by 0.40% for all schemes.
U2 - 10.1364/jocn.6.000008
DO - 10.1364/jocn.6.000008
M3 - Article
SN - 1943-0620
VL - 6
SP - 8
JO - Journal of Optical Communications and Networking
JF - Journal of Optical Communications and Networking
IS - 1
ER -