2 research outputs found
Ergodic capacity evaluation of wireless THz fiber extenders
This paper focuses on delivering quantified results for the evaluation of the
aggregated impact of stochastic antenna misalignment, multipath fading and
hardware imperfections on the terahertz (THz) wireless fiber extenders. In this
line, we present the appropriate signal model that accommodates the different
technical and environmental parameters. In particular, it takes into
consideration the antenna gains, the central frequency, the transmission range,
the environmental conditions, i.e. temperature, humidity and pressure, the
spatial jitter between the transmitter and receiver antennas, which results to
antenna misalignment, the intensity of hardware imperfections, and the
stochastic behavior of the wireless channel. Based on this model, we assess the
joint impact of antenna misalignment and multipath fading, by providing Monte
Carlo simulation results for the channels ergodic capacity.Comment: 4 pages, 2 figures, conference paper, Presented in WWRF, WG High
Frequencies (mmWAVE and THz) Radio Communications Technologies, September
201
Wireless Terahertz System Architectures for Networks Beyond 5G
The present white paper focuses on the system requirements of TERRANOVA.
Initially details the key use cases for the TERRANOVA technology and presents
the description of the network architecture. In more detail, the use cases are
classified into two categories, namely backhaul & fronthaul and access and
small cell backhaul. The first category refers to fibre extender,
point-to-point and redundancy applications, whereas the latter is designed to
support backup connection for small and medium-sized enterprises (SMEs),
internet of things (IoT) dense environments, data centres, indoor wireless
access, ad hoc networks, and last mile access. Then, it provides the networks
architecture for the TERRANOVA system as well as the network elements that need
to be deployed. The use cases are matched to specific technical scenarios,
namely outdoor fixed point-to-point (P2P), outdoor/indoor individual
point-to-multipoint (P2MP), and outdoor/indoor "quasi"-omnidirection, and the
key performance requirements of each scenario are identified. Likewise, we
present the breakthrough novel technology concepts, including the joint design
of baseband signal processing for the complete optical and wireless link, the
development of broadband and spectrally efficient RF-frontends for frequencies
>275 GHz, as well as channel modelling, waveforms, antenna array and
multiple-access schemes design, which we are going to use in order to satisfy
the presented requirements. Next, an overview of the required new
functionalities in both physical (PHY) layer and medium access control (MAC)
layers in the TERRANOVA system architecture will be given. Finally, the
individual enablers of the TERRANOVA system are combined to develop particular
candidate architectures for each of the three technical scenarios.Comment: 73 pages, 31 figures, 7 tables. arXiv admin note: text overlap with
arXiv:1503.00697 by other author