Mobility

Imperfect Radio Over Fibre Aided Distributed Antennas With Fractional Frequency Reuse

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Executive Summary

The classic Unity Frequency Reuse (UFR) pattern typically has a low throughput at the cell-edge. As a remedy, the Fractional Frequency Reuse (FFR) philosophy may be invoked, which is capable of improving the cell-edge Signal-to-Interference-plus-Noise-Ratio (SINR). Similarly, DASs are also capable of attaining an improved coverage, hence increasing the attainable throughput of the cell-edge area and reducing the total transmit power dissipation. In contrast to employing a vulnerable wireless backhaul for connecting the central Base Station (BS) and the distributed Remote Antennas (RAs), the Radio over Fibre (RoF) transmission technique is eminently applicable to construct the BS to RA links by exploiting the benefits of optical fibre based backhauls, although naturally, this increases the system's cost.

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