Question:

Published on: 24 June, 2024

**What do you mean by co-channel interference and system capacity? **

Answer:

**Co channel interference** is the interference between two access points(APs) or base stations operating at the same frequency. It can severely degrade the performance of wireless LANs. There can be several reasons of co-channel interference:

1)adverse weather condition

2) poor frequency planning

3) overly crowded radio spectrum

**System capacity** is the tight upper bound on the rate at which information can be reliably transmitted over a communications channel. The system capacity of a given channel is the limiting information rate that can be achieved with arbitrarily small error probability.

According to Shanon-Hartley theorem, the capacity of the system C is given by:

Where, B is the bandwidth of the channel

S/N is the signal to noise ratio.

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