On 29-30 Jun-2022, the ThoR backhaul link was demonstrated as part of a public workshop at TUBS (see D7.8). This final ThoR demonstration successfully showed for the first time a fully network-integrated, bit-transparent, bidirectional THz long-range point-to-point wireless link operating in compliance with the IEEE802.15.3d standard and under real-world outdoor conditions.
o A bidirectional real data connection between TUBS’ IT centre and the Oker high-rise building over 160 m with data rates of 2×20 Gbps net at a bandwidth of 2×8.64 GHz using FDD modems.
o The operation of the IEEE 802.15.3 standard was shown using TDD modems.
o This represents a world first and a new state-of-the-art for THz wireless communication.
• On 19-Jul-2022 in final testing at ULILLE, the ThoR modules were used in a 645 m bidirectional 5 Gbps (QAM-16), i.e. achieving a total of 10 Gbps throughput.
• These successful demos of the scalable ThoR approach show that even higher data rates can be realised.
Note that the ThoR system concept is scalable to support the full data rate of up to 315 Gbps compliant with the IEEE 802.15.3d standard, which will be shown by software simulation (referred to as DEMO-4) taking into account the measured characteristics of the hardware developed and used in the project.
In DEMO-4, the scalability of IEEE Standard 802.15.3d was proven by taking into account the experimentally obtained characteristics of the wireless communication system including RF impairments.
• Two scenarios were examined, both located in Berlin:
o Backhaul network scenario: The overall network performance was analysed for a channel bandwidth of 4.32 GHz and 51.84 GHz for normal and extreme weather conditions.
o Relay scenario: To show the scalability of the multi-carrier concept (used in the ThoR hardware demo), a simulation of up to 24 subcarriers were transmitted in parallel over the THz backhaul channel showing only a minor impact on the global performance.
ThoR has contributed to assure, that the required spectrum beyond 275 GHz will be available by actively contributing to the process towards agenda item 1.15 of the World Radiocommunication Conference (WRC) taking place in November 2019 and by developing interference mitigation techniques, which are able to fulfil the operational constraints potentially defined at WRC 2019. The fulfilment of this objective requires the development of propagation models for 300 GHz links as well as planning rules for 200 Gbps+ wireless P2P links at 300 GHz. These goals hav been fuly achieved. Throughout the project, the ThoR consortium (in particular TUBS, HRCP and WUT) have made significant contributions to international standardisation