Question - How can a Pseudo Random Noise Code be usable?
Answer -
To be usable for direct sequence spreading, a PN code must meet the following conditions:
- Sequence must be built from 2 leveled numbers.
- The codes must have sharp auto correlation peak to enable code synchronization.
- Codes must have a low cross-correlation value, the lower it is, more are the number of users which can be allowed in the system.
- The codes should be “balanced” i.e. the difference between ones and zeros in code may only be one.