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We propose a full-duplex dynamic indoor optical-wireless system using photonic integrated circuits with multicasting capability of 10 Gb/s on-off-keying data, backed up by a 60-GHz radio fallback system, with data capacity of >40 Gb/s to realize reconfigurable and reliable high-capacity links to wireless users equipped with localization and tracking functionalities.
We demonstrated the simultaneous transmission of multiband LTE-A signals, a WiFi IEEE802.11ac and a gigabit/s baseband 4-PAM signal over 1mm core diameter PMMA GI-POF. The optical link used a red light 650 nm laser diode and a p-i-n photodiode with a transimpedance amplifier. The 4-PAM transmission achieved 1.7 Gb/s (BER < 1×10−3), together with 9 LTE-A standard-compliant bands with EVM < 8%...
We propose and demonstrate a novel bi-directional free-space (FS) optical wireless communication system for indoor wireless networks. A 2-D infrared beam-steered system supporting full-duplex communication of at least 10 Gb/s capacity per wireless terminal with simple NRZ-OOK modulation format is experimentally demonstrated. The uplink (UL) is implemented using the optical carrier recovery technique,...
We present a transparent all-optical wireless architecture for full-duplex two-dimensional beam-steered communication system with wavelength reuse. We compare the performances of symmetric (down 10 Gbit/s / up 10 Gbit/s) and asymmetric (down 10 Gbit/s / up 2.5 Gbit/s) systems through experimental evaluation.
We present a bidirectional dynamic indoor fiber infrastructure using a photonic integrated cross-connect chip for optical wireless downstream and 60GHz radio-over-fiber upstream transmission. We demonstrate 10Gb/s on-off-keying downstream multicasting and 33Gb/s discrete-multi-tone upstream communication.
Cost, performance and energy consumption are major issues in indoor optical wireless systems. We propose a low cost, energy-friendly and yet high performance solution based on optical beam-steering and time-sharing. This solution also enables unicasting, multicasting and broadcasting of broadband services.
We propose a novel spectrum-efficient indoor optical wireless solution providing multi-Gigabits-per-second with passive diffractive beam-steering technique and discrete multitone modulation. Diffracted link performance of 36.7 Gbps over more than 2.5 m is reported.
Bi-directional transmission of ultra-wideband wireless signals over 1 mm core diameter POF for PON-based in-home network is demonstrated. Standard compliant signal distribution over 50 m POF and 4 m wireless transmission is demonstrated.
Integrated service delivery in short-reach in-building networks can cost-effectively be implemented using POF. Its bandwidth limits are overcome by advanced modulation techniques. In larger buildings, wavelength routing in an SMF point-to-multipoint topology improves network performance.
In this paper we present an in-home optical network infrastructure based on 1-mm core diameter plastic optical fibre. Both bus and star topologies based point-to-multipoint (P2MP) infrastructures to deliver ultra wideband (UWB) radio signals are presented. The system complexity and cost are compared and discussed considering real application environments. A detailed experimental study on the performance...
We demonstrate, for the first time, simultaneous routing of wireless 2 Gb/s IR-UWB and 1.25 Gb/s wired services using XGM-SOA. This technique has potential applications for integration of wireless and wired services for in-building networks.
Delivery of wirebound and wireless services can be integrated in a single cost-efficient in-home POF network, when using advanced signal modulation techniques. In larger buildings, dynamic capacity allocation by wavelength routing improves the network performance.
In this paper we present an in-home optical network infrastructure based on 1 mm core diameter graded-index plastic optical fibre. A combined transmission of a multi-gigabit baseband data stream, based on discrete multitone modulation, and a radio frequency signal, based on ultra wideband technology, is shown. A detailed experimental study on the performance of the two types of signals in the combined...
We demonstrate a proof of concept real time HD video stream delivery over 50m 1mm core diameter plastic optical fiber and 3m wireless link employing MB-OFDM UWB technology for in-home networks.
Broadband wired and wireless signals are simultaneously transmitted over 1mm core size 50m POF and 2.5m air link. 3 Gbit/s DMT and 480 Mb/s UWB are successfully delivered with BER <10−3 and EVM <15%, respectively.
To flexibly distribute RoF signals at remote site, a new colourless distribution system based on the modulated ASE noise of an SOA is proposed. Wi-Fi (802.11a/g) LAN signals are successfully transmitted including the wireless link with 3% EVM penalty.
We propose a novel generation technique for IR-UWB signal employing the weighted sum of modified doublets. We experimentally demonstrate a DSP-based BER measurement of 2 Gbps IR-UWB over 100m PF GI-POF for in-building network applications.
Current evolution and tendencies of Telecom Networks in general and more specifically optical Metro and Access Networks and their convergence are reported. Based on this evolution, a set of research lines are foreseen regarding subsystems and devices as: high speed optical sources, modulators and receivers, for the next generation of Passive Optical Networks. The ICT project EURO-FOS is achieving...
By deploying optical fiber, versatile in-building networks which integrate wired and wireless services can be realized. Advanced signal modulation techniques enable high-capacity services over multimode fiber, and dynamic wavelength routing can improve the system's efficiency.
Radio-over-fibre systems can efficiently deliver broadband wireless services in access and in-building networks. RoF signal transport and routing techniques are presented which are robust against fibre dispersion and provide capacity-on-demand for high-capacity multi-tone radio signals.
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