How to Calculate Omnidirectional SIR?
Omnidirectional SIR calculator uses Omnidirectional SIR = 1/(2*(Frequency Reuse Ratio-1)^(-Propagation Path Loss Exponent)+2*(Frequency Reuse Ratio)^(-Propagation Path Loss Exponent)+2*(Frequency Reuse Ratio+1)^(-Propagation Path Loss Exponent)) to calculate the Omnidirectional SIR, Omnidirectional SIR represents the ratio of the signal strength from a mobile device to the interference it experiences from co-channel cells, assuming omnidirectional antennas. Omnidirectional antennas transmit and receive signals equally in all directions. Omnidirectional SIR is denoted by SIR_{omn} symbol.
How to calculate Omnidirectional SIR using this online calculator? To use this online calculator for Omnidirectional SIR, enter Frequency Reuse Ratio (q) & Propagation Path Loss Exponent (γ) and hit the calculate button. Here is how the Omnidirectional SIR calculation can be explained with given input values -> 0.239387 = 1/(2*(1.78-1)^(-2)+2*(1.78)^(-2)+2*(1.78+1)^(-2)).