title: Seamless integration of 57.2-Gb/s signal wireline transmission and 100-GHz wireless delivery.
abstract: We experimentally demonstrated the seamless integration of 57.2-Gb/s signal wireline transmission and 100-GHz wireless delivery adopting polarization-division-multiplexing quadrature-phase-shift-keying (PDM-QPSK) modulation with 400-km single-mode fiber-28 (SMF-28) transmission and 1-m wireless delivery. The X- and Y-polarization components of optical PDM-QPSK baseband signal are simultaneously up-converted to 100 GHz by optical polarization-diversity heterodyne beating, and then independently transmitted and received by two pairs of transmitter and receiver antennas, which make up a 2x2 multiple-input multiple-output (MIMO) wireless link based on microwave polarization multiplexing. At the wireless receiver, a two-stage down conversion is firstly done in analog domain based on balanced mixer and sinusoidal radio frequency (RF) signal, and then in digital domain based on digital signal processing (DSP). Polarization de-multiplexing is realized by constant modulus algorithm (CMA) based on DSP in heterodyne coherent detection. Our experimental results show that more taps are required for CMA when the X- and Y-polarization antennas have different wireless distance.
authors.affiliation: Department of Communication Science and Engineering, Fudan University, 220 Handan Road, Shanghai 200433, China.
authors.forename: Xinying
authors.initials: X
authors.lastname: Li
authors.forename: Jianjun
authors.initials: J
authors.lastname: Yu
authors.forename: Ze
authors.initials: Z
authors.lastname: Dong
authors.forename: Zizheng
authors.initials: Z
authors.lastname: Cao
authors.forename: Nan
authors.initials: N
authors.lastname: Chi
authors.forename: Junwen
authors.initials: J
authors.lastname: Zhang
authors.forename: Yufeng
authors.initials: Y
authors.lastname: Shao
authors.forename: Li
authors.initials: L
authors.lastname: Tao