Ravinder David Koilpillai

Spectrum for satellite services are likely to overlap with the ITU 5G spectrum. Critical satellite services may be impacted due to interference between various communication links working in the same frequency band. The worst-case interference scenario between Mobile Base Station (BS) and Satellite Earth Station (ES) is evaluated. Recommendation for path loss for 3.4 GHz operations are given based on ITU-R P.1546-5. Simulations are parameterized by ES height, BS height, terrain, time-variability and location-variability.

The phase noise (PN) of a photo-generated mmwave carrier, resulting from frequency and phase fluctuations of uncorrelated laser sources, limits the performance of heterodyne/millimeter-wave analog radio-over-fibre links. This work analyzes the effect of subcarrier baud rate and frequency offset (FO) variations on the performance of a 60 GHz OFDM signal generated using unlocked fiber lasers. Conventional digital techniques for FO and PN compensation, in a 25 km mm-wave A-RoF heterodyne system, are shown to overcome relatively large FOs and to enable the successful transmission of kHz range sub-carrier baud rates-in line with recent 5G recommendations.