Spreading factor formula

1. What is the spread factor?
2. What is spreading factor in CDMA?
3. What is spreading factor in spread spectrum?
4. What is spreading factor in UMTS?

What is the spread factor?

The spreading factor defines the relation between symbol rate and chip rate. A higher spreading factor increases sensitivity and range, but also prolongs the airtime of a packet and will likely raise the risk of a collision.

What is spreading factor in CDMA?

Orthogonal variable spreading factor (OVSF) is an implementation of code-division multiple access (CDMA) where before each signal is transmitted, the signal is spread over a wide spectrum range through the use of a user's code. Users' codes are carefully chosen to be mutually orthogonal to each other.

What is spreading factor in spread spectrum?

The ratio between the bandwidth of the user signal and the transmit bandwidth is called the "spreading factor".

What is spreading factor in UMTS?

The Spreading Factor is the ratio of the chips (UMTS = 3.84Mchips/s) to baseband information rate. Spreading factors vary from 4 to 512 in FDD UMTS. Spreading process gain can in expressed in dBs (Spreading factor 128 = 21dB gain).