## How do you calculate distance from RSSI?

Distance = 10 ^ ((Measured Power -RSSI)/(10 * N))

## What is RSSI formula?

RSSI=Pt-PL(d). (3) In this formula, Pt indicated the signal transmission power, PL(d) indicated the path loss when the distance is d, and they are both in dBm. A indicated the signal strength which is received from reference nodes at the distance d0; A is as follows: A=Pt-PL(d).

**What is RSSI range?**

-70 to -80 dBm

RSSI measures the strength of a radio signal. Any RSSI value lower than -80 dBm is considered poor signal strength. Based on the client implementation some clients consider -75 dBm as poor strength as well, and will start roaming to a better Access Point, so values in the range -70 to -80 dBm are client dependent.

**What is RSSI number?**

What is RSSI? RSSI stands for Received Signal Strength Indicator. The problem with understanding RSSI strength is the fact that RSSI is not a “real” number. Rather it is a relative number that measures how strong a signal is when it’s received by a device and it’s heavily influenced by many factors.

### What is a good RSSI level?

55

Yes, an RSSI value of 55 is generally considered to be good enough for most users and online activities. If measured in negative numbers (with 0 meaning the best signal possible and -100 the worst), then the relative quality of a received signal on a device is slightly worse, but still acceptable.

### How do you calculate RSSI in LTE?

RSSI = wideband power = noise + serving cell power + interference power

- RSRP is the received power of 1 RE (3GPP definition) average of power levels received across all Reference Signal symbols within the considered measurement frequency bandwidth.
- RSSI is measured over the entire bandwidth.

**Is a good RSSI?**

Yes, an RSSI value of 55 is generally considered to be good enough for most users and online activities. If measured in negative numbers (with 0 meaning the best signal possible and -100 the worst), then the relative quality of a received signal on a device is slightly worse, but still acceptable.

**How RSSI is calculated in LTE?**

RSSI = wideband power = noise + serving cell power + interference power. RSRP is the received power of 1 RE (3GPP definition) average of power levels received across all Reference Signal symbols within the considered measurement frequency bandwidth. RSSI is measured over the entire bandwidth.

#### Is RSSI 55 good?

Is RSSI 55 good? Yes, an RSSI value of 55 is generally considered to be good enough for most users and online activities. If measured in negative numbers (with 0 meaning the best signal possible and -100 the worst), then the relative quality of a received signal on a device is slightly worse, but still acceptable.

#### How to calculate the distance from the RSSI value?

3. Distance for RSSI -80 = 10 ^ ((-69 – (-80))/(10 * 2)) = 3.54 meter. Obviously, the Distance calculated is the approximated distance and not the exact distance as for calculating exact distance we have to make the loss factor (from environmental factors) zero.

**How does measured power and RSSI work together?**

The further away the device is from the beacon, the more unstable the RSSI becomes. Measured Power is a factory-calibrated, read-only constant which indicates what’s the expected RSSI at a distance of 1 meter to the beacon. Combined with RSSI, it allows to estimate the distance between the device and the beacon.

**Do you have to renormalize the probability of the RSSI?**

Not the probability of the distance given the rssi. This is important, and it means that we need to at least renormalize the probabilities over all possible distances to make sure that they add up to 1. See section at end for more details. Now let’s have a bit of fun, by switching it to base e.

## How is the RSSI calculated for RX form TX?

For a constant distance and position of Rx form Tx, the RSSI is varying by 10 values. Do you have any documentation how as the Rx computes the RSSI, may be a good insight in this field will help us.