Granted Patent B2

US 12,603,802 · App. 18/568,472 · Granted Apr 14, 2026

Inventors: Onur Günlü (Berlin, DE); Rafael F. Schaefer (Berlin, DE); Joerg Kliewer (Fair Lawn, NJ); Vladimir Sidorenko (Ulm, DE)

H04L27/26035H03M13/1515H04L1/0064

Abstract

Claims (31)

1 . Method for identification via channels in a system having a plurality of data processing devices, comprising:

selecting, in a first data processing device, an identifier indicative of a target second data processing device of a plurality of second data processing devices;

determining, in the first data processing device, an outer codeword from the identifier using an outer code comprising a first outer code and a second outer code;

determining, in the first data processing device, an optical orthogonal codeword from the outer codeword using an optical orthogonal code;

identifying entries of the optical orthogonal codeword having a first symbol;

for each identified entry of the optical orthogonal codeword, mapping the identified entry to a codeword of an error correction code, thereby forming a set of error correction codewords;

randomly selecting a codeword from the set of error correction codewords; and

emitting the selected codeword from the first data processing device via a channel.

2 . Method according to claim 1 , wherein the identifier is an integer value.

3 . Method according to claim 1 , wherein the second outer code is concatenated with the first outer code.

4 . Method according to claim 1 , wherein the outer code comprises at least one of a Reed-Solomon-code, an extended Reed-Solomon-code, and a doubly-extended Reed-Solomon-code.

5 . Method according to claim 1 , wherein at least one of the outer code, the optical orthogonal code, and the outer code concatenated with the optical orthogonal code is a binary constant weight code.

6 . Method according to claim 1 , wherein a number of codewords of the optical orthogonal code is a prime power.

7 . Method according to claim 1 , wherein the optical orthogonal code is modified by removing each first codeword entry containing a second symbol.

8 . Method according to claim 1 , wherein the selected codeword is randomly selected in the first data processing device using a physical unclonable function.

9 . Method according to claim 1 , wherein emitting the selected codeword from the first data processing device comprises transmitting the selected codeword from the first data processing device to a second data processing device of the plurality of second data processing devices.

10 . Method according to claim 1 , further comprising:

receiving a noisy selected codeword in one of the plurality of second data processing devices;

determining, in the one of the plurality of second data processing devices, the selected codeword from the noisy selected codeword using a decoding method; and

determining, in the one of the plurality of second data processing devices, whether the selected codeword is indicative of the target second data processing device.

11 . Method according to claim 1 , wherein the selected codeword is determined as indicative of the target second data processing device if the selected codeword is contained in the set of error correction codewords assigned to the identifier indicative of the target second data processing device.

12 . Method according to claim 1 , wherein the identifier is modified using a randomly generated offset number before determining the outer codeword from the identifier.

13 . Computer program product comprising instructions which, when the computer program product is executed by a first data processing device, cause the first data processing device to perform the method according to claim 1 .

14 . System for identification via channels comprising a plurality of data processing devices and configured to:

select, in a first data processing device, an identifier indicative of a target second data processing device of a plurality of second data processing devices;

determine, in the first data processing device, an outer codeword from the identifier using an outer code comprising a first outer code and a second outer code;

determine, in the first data processing device, an optical orthogonal codeword from the outer codeword using an optical orthogonal code;

identifying entries of the optical orthogonal codeword having a first symbol;

for each identified entry of the optical orthogonal codeword, mapping the identified entry to a codeword of an error correction code, thereby forming a set of error correction codewords;

randomly selecting a codeword from the set of error correction codewords; and

emit the selected codeword from the first data processing device via a channel.

Assignments (3)

Priority Claims (1)

Continuity (1)

References Cited (25)