Re: [Discuss-gnuradio] Good CDMA codes

[Henry Barton]

I know of Gold codes. I was curious as to whether there was an easier way to mass-produce spreading codes, but I guess not.

BTW, Johannes, what did you mean by “20!”

From: P
Sent: ‎Friday‎, ‎July‎ ‎15‎, ‎2016 ‎4‎:‎39‎ ‎AM
To: Johannes Demel, address@hidden

Good start point might be Gold code or Hadaramd code.

Dne 15.7.2016 v 09:24 Johannes Demel napsal(a):
> 20!
>
> On 15.07.2016 04:54, Henry Barton wrote:
>> I’m designing a CDMA system with a spreading factor of 20. I recently
>> wrote an app to go through all the binary permutations up to 2^20 and
>> report which ones have an equal number of 0’s and 1’s, or at least
>> differ by only one. It came up with so many “hits” that I have to wonder
>> if they're really orthogonal. Does anyone know offhand how many good
>> spreading codes I can realistically expect from 1048576 possible entries?
>>
>>
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