Clear Understanding
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Noise limited system: Concern with NOISE.
A system where ππ is the major limiting factor for SINR. In this example, it is ensured that there is no interference. Then, the signal quality is only determined by the transmit power, distance and noise.
Interference limited system: Concern with Interference
A system where β πΌπ π0 π=1 is the major limiting factor for SINR. This is the case when the channel is reused at different locations.
Difference between Noise and Interference:
Sometimes, it is difficult to tell between interference and noise. One difference between interference and noise lies in the fact that interference suffers from fading, while the noise power is typically constant (averaged over a short time interval). You can vary location, frequency and time to avoid interference, while itβs not possible for noise.
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Backhaul interference: Wireless backhauling can be in-band or out-of-band. With the former, the same channel is used for access and backhaul links. With out-of-band backhauling, there is no interference between access and backhaul
links due to the transmissions on different bands/spectrum or wired connectivity. With inband wireless backhauling, network operators can upgrade their existing networks in a short time and at low cost.
RF backhaul, however, is limited by latency problems. On the other side,
FSO solution, which offers better latency and higher data rate than RF backhauls, remains sensitive to weather and nature conditions (e.g., rain, fog).
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