Antenna misalignment effects in 100 Gbit/s D-band wireless transmissions

Abstract

We report an operational photonics‐enabled 100 Gbit/s D‐band antenna polarization multiplexing system (2 × 2 MIMO) with a carrier frequency of 141 GHz, and experimentally explores antenna misalignment effects on the signal performance in terms of bit error rate. Misalignments from −10 to 10 degrees were evaluated for both the E‐ and H‐plane, highlighting the strict requirements needed to maintain a signal performance below forward‐error correction codes thresholds. Our findings indicate tolerable misalignments are below 1 degree, hinting beam steering as a must for future D‐band communication links. © 2017 Wiley Periodicals, Inc. Microwave Opt Technol Lett 59:1431–1434, 2017

M-QAM transmission over hybrid microwave photonic links at the K-band

“…However, the degradation of EVM/BER performance due to the RF wireless channel effects can be overcome by means of modulation, coding and adaptive equalization schemes [26,27]. Recently, the ANT misalignment has also been investigated in the D-band (141 GHz) RoF system, but over short RF wireless length of only 0.5 m [28], where the tolerable misalignment angle was found to be less than 1°. Note that, as reported in [28], angles higher than 1°lead to the increased BER above the HD-FEC limit.…”

“…Recently, the ANT misalignment has also been investigated in the D-band (141 GHz) RoF system, but over short RF wireless length of only 0.5 m [28], where the tolerable misalignment angle was found to be less than 1°. Note that, as reported in [28], angles higher than 1°lead to the increased BER above the HD-FEC limit. To further evaluate the proposed hybrid MPL for a practical outdoor scenario as part of the 5G network, we performed a simulation-based analysis at a bit rate of 10 Gb/s and a carrier frequency of 25 GHz using OptiSystem and MATLAB software co-simulation [29].…”