Simon Rommel

W-band photonic-wireless link with a Schottky diode envelope detector and bend insensitive fiber

The performance and potential of a W-band radio-over-fiber link is analyzed, including a characterization of the wireless channel. The presented setup focuses on minimizing complexity in the radio frequency domain, using a passive radio frequency transmitter and a Schottky diode based envelope detector. Performance is experimentally validated with carriers at 75-87GHz over wireless distances of 30-70m. Finally the necessity for and impact of bend insensitive fiber for on-site installation are discussed and experimentally investigated.

Low RF Complexity Photonically Enabled Indoor and Building-to-Building W-Band Wireless Link

We demonstrate W-band wireless transmission over distances covering both indoor and building-to-building scenarios with a setup of reduced complexity in the RF domain, employing a passive wireless transmitter and envelope detection at the receiver.

Capacity enhancement for hybrid fiber-wireless channels with 46.8Gbit/s wireless multi-CAP transmission over 50m at W-band

Transmission of a 46.8 Gbit/s multi-band cap signal is experimentally demonstrated over a 50 m W-band radio-over-fiber link. Bit error rates below 3.8×10⁻³ are achieved, employing nine cap bands with bit and power loading.

Reconfigurable radio access unit to dynamically distribute W-band signals in 5G wireless access networks

In this paper a new type of radio access unit is proposed and demonstrated. This unit is composed only of the reduced amount of components (compared to conventional unit designs) to optically generate wireless signals on the W-band (75-110GHz) in combination with a switching system. The proposed system not only achieves BER values below the FEC limit, but gives an extra level of flexibility to the network by easing the redirection of the signal to different antennas.

Up to 35 Gbps ultra-wideband wireless data transmission links

For the first time Ultra-Wideband record data transmission rates up to 35.1 Gbps and 21.6 Gbps are achieved, compliant with the restrictions on the effective radiated power established by both the United States Federal Communications Commission and the European Electronic Communications Committee, respectively. To achieve these record bit rates, the multi-band approach of Carrierless Amplitude Phase modulation scheme was employed. Wireless transmissions were achieved with a BER below the 7% overhead FEC threshold of 3.810−3.

Convergence of photonics and electronics for Terahertz wireless communications

Terahertz wireless communications are expected to offer the required high capacity and low latency performance necessary for short-range wireless access and control applications. We present an overview of some the activities in this area in the newly started H2020 ITN project CELTA: Convergence of Electronics and Photonics Technologies Enabling Terahertz Applications.

Channel characterization for high-speed W-band wireless communication links

We present and discuss results from an experimental characterization of the W-band indoor wireless channel, including both large and small scale fading phenomena as well as corresponding channel parameters and their impact on system performance.

Reconfigurable Radio Access Unit for DWDM to W-Band Wireless Conversion

In this letter a reconfigurable remote access unit (RAU) is proposed and demonstrated, interfacing dense wavelength division multiplexed (DWDM) optical and W-band wireless links. The RAU is composed of a tunable local oscillator, a narrow optical filter, and a control unit, making it reconfigurable via software. The RAU allows selection of a DWDM channel and tuning of the radio carrier frequency. Real-time transmission results at 2.5 Gbit/s and performance measurements with offline data processing at 4 and 5 Gbit/s are presented. Error free real-time transmission was achieved after 15 km of standard single mode fiber and 50 m of wireless transmission with carriers between 75 and 95 GHz.

Rapid Prototyping by 3D Printing for Advanced Radio Communications at 80 GHz and Above

Above DTU Orbit (03/08/2019) Rapid Prototyping by 3D Printing for Advanced Radio Communications at 80 GHz and Above This paper discusses the potential of 3D printing for the manufacturing of spiral phase plates for the generation of radio vortex beams for advanced radio communications. The design and prototyping of a number of phase plates for communications at 80GHz with radio vortex beams is discussed and their performance analyzed through computer simulations.

15Gbit/s duobinary transmission over a W-band radio-over-fiber link

In this paper the transmission of a 15Gbit/s duobinary signal over a W-band hybrid photonic wireless link is demonstrated experimentally. The radio-over-fiber link consists of 10km SMF and a wireless distance of 50m, utilizing RF carriers at 83–87GHz. Transmission of a 15Gbit/s duobinary signal is achieved with a BER of 2.9×10−3, i.e. below the limit for a 7% overhead FEC.