In-band time-to-live signaling system for combined DPSK/SCM scheme in OLS

We propose and validate experimentally a time-to-live (TTL) signaling system for an optical label swapping scheme based on 10-Gb/s differential phase-shift-keying (DPSK) packets and with 100-Mb/s subcarrier multiplexing (SCM) label. The proposed scheme allows fast packet discarding by using a 3-GHz subcarrier tone. DPSK payload has only a 2.4-dB power penalty at 10-9 bit-error rate after superimposing the SCM and TTL labeling signal

In-band time-to-live signaling system for combined DPSK/SCM scheme in OLS

We propose and validate experimentally a time-to-live (TTL) signaling system for an optical label swapping scheme based on 10-Gb/s differential phase-shift-keying (DPSK) packets and with 100-Mb/s subcarrier multiplexing (SCM) label. The proposed scheme allows fast packet discarding by using a 3-GHz subcarrier tone. DPSK payload has only a 2.4-dB power penalty at 10-9 bit-error rate after superimposing the SCM and TTL labeling signal

Real-time hardware G.hn LiFi infrastructure with D-MIMO and WDM over POF Fronthaul

In this paper we report, for the first time, measured performance results of the concatenation between two different plastic optical fibre (POF) fronthaul approaches and distributed multiple-input multiple-output (D-MIMO) LiFi using commercial G.hn chipsets. These integrated circuits (IC)s are capable of performing, among other features, MIMO signal processing, orthogonal frequency-division multiplexing (OFDM) modulation, and adaptive bit-loading, which are important features for LiFi systems. The use of commercially available ICs with the aforementioned features, accelerates the mass market adoption of LiFi technology. We consider the POF fronthaul approaches: spatial division multiplexing (SDM) and wavelength division multiplexing (WDM). POFs are interesting for industrial scenarios due to its electromagnetic interference immunity, their low weight and cost. The measured throughput results show that a WDM POF fronthaul, using a red light-emitting diode (LED) and a green laser diode (LD), has ample throughput to support the DMIMO LiFi link, which proves the viability of the use of POFs as fronthaul for D-MIMO LiFi systems. Our results give input for possible enhancements to the ITU G.vlc standard G.9991

Passive-OFE Spatial Multiplexing Gigabits per Second Transmission Using WDM-over-POF

A spatial multiplexing WDM transmission comprising a wired link of thick core step-index POF and a wireless link of 1m is presented. Applying singular value decomposition on experimental data, 4.8 Gbps throughput can be achieved

Bidirectional WDM-over-POF with Spatial Diversity DMT Gigabits per Second Transmission Using POF as Luminaires

A bidirectional spatial diversity link for indoor optical wireless communications applying wavelength division multiplexing over 1mm core size plastic optical fibre and 1m free space is experimentally demonstrated. Discrete multitone modulation on red and green wavelengths demonstrates almost symmetrical 2Gbps for down/uplink

Toward multi-Gbps indoor optical wireless multicasting system employing passive diffractive optics

This Letter presents the evaluation and demonstration of an optical free-space (FS) multicasting system for multi-Gigabits-per-second (multi-Gbps) indoor transmission. These simultaneous line-of-sight links are formed by infrared beams and are beam-steered using a passive diffraction grating. The experiment has resulted in error-free links (bit error rat