100 Gbit/s Terahertz-Wireless Real-Time Transmission Using a Broadband Digital-Coherent Modem

In this paper, we demonstrate for the first time 100 Gbit/s real-time THz-wireless data transmission at a carrier frequency of 300 GHz using a single broadband real-time modem originally designed for 2×2 Polarization-MIMO digital-coherent fiber-optical transmission. As a reference, the performance of the 50-cm long, LoS, spatially multiplexed (x2) wireless link is also evaluated using offline DSP algorithms optimized for the THz setup. During the real-time operation of the system, we have recorded the pre-FEC BER over 100 hours of continuous operation to demonstrate the stability of the system.

[1]  Christian Meuer,et al.  Experimental demonstration of a format-flexible single carrier coherent receiver using data-aided digital signal processing , 2014 .

[2]  Robert Elschner,et al.  32 GBd 16QAM Wireless Transmission in the 300 GHz Band using a PIN Diode for THz Upconversion , 2019, 2019 Optical Fiber Communications Conference and Exhibition (OFC).

[3]  S. Wagner,et al.  MMIC chipset for 300 GHz indoor wireless communication , 2015, 2015 IEEE International Conference on Microwaves, Communications, Antennas and Electronic Systems (COMCAS).

[4]  Ian F. Akyildiz,et al.  Coverage and achievable rate analysis for indoor terahertz wireless networks , 2017, 2017 IEEE International Conference on Communications (ICC).

[5]  Ying Zhang,et al.  132-Gb/s Photonics-Aided Single-Carrier Wireless Terahertz-Wave Signal Transmission at 450GHz Enabled by 64QAM Modulation and Probabilistic Shaping , 2019, 2019 Optical Fiber Communications Conference and Exhibition (OFC).

[6]  Sebastian Priebe,et al.  Towards THz Communications - Status in Research, Standardization and Regulation , 2014 .

[7]  Robert Elschner,et al.  Analysis of Joint Impairment Mitigation in a Hybrid Optic-THz Transmission System , 2019, 2019 IEEE 20th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC).

[8]  Xiaodai Dong,et al.  Terahertz Communication for Vehicular Networks , 2017, IEEE Trans. Veh. Technol..

[9]  Markku J. Juntti,et al.  Terahertz Technologies to Deliver Optical Network Quality of Experience in Wireless Systems Beyond 5G , 2018, IEEE Communications Magazine.

[10]  Ian F. Akyildiz,et al.  The Internet of Multimedia Nano-Things in the Terahertz Band , 2012, EW.

[11]  Keping Long,et al.  Modulation-format-independent blind phase search algorithm for coherent optical square M-QAM systems. , 2014, Optics express.

[12]  Tadao Nagatsuma,et al.  Real-time 100-Gbit/s QPSK transmission using photonics-based 300-GHz-band wireless link , 2016, 2016 IEEE International Topical Meeting on Microwave Photonics (MWP).

[13]  D. Moltchanov,et al.  Terahertz band communications: Applications, research challenges, and standardization activities , 2016, 2016 8th International Congress on Ultra Modern Telecommunications and Control Systems and Workshops (ICUMT).

[14]  S. Savory.  Digital Coherent Optical Receivers: Algorithms and Subsystems , 2010, IEEE Journal of Selected Topics in Quantum Electronics.

[15]  B. Heinemann,et al.  A 16-QAM 100-Gb/s 1-M Wireless Link With an EVM of 17% at 230 GHz in an SiGe Technology , 2019, IEEE Microwave and Wireless Components Letters.