US 11,757,557 B2
Subchannel encoding device, subchannel decoding device, subchannel encoding method, subchannel decoding method, and subchannel multiplexing optical communication system
Tsuyoshi Yoshida, Tokyo (JP)
Assigned to Mitsubishi Electric Corporation, Tokyo (JP)
Filed by Mitsubishi Electric Corporation, Tokyo (JP)
Filed on Dec. 10, 2021, as Appl. No. 17/547,584.
Application 17/547,584 is a continuation of application No. PCT/JP2019/029504, filed on Jul. 26, 2019.
Prior Publication US 2022/0103285 A1, Mar. 31, 2022
Int. Cl. H04B 10/25 (2013.01); H04J 14/02 (2006.01); H04B 10/2581 (2013.01); H04L 27/26 (2006.01); H04L 27/34 (2006.01)
CPC H04J 14/0298 (2013.01) [H04B 10/2581 (2013.01); H04L 27/26 (2013.01); H04L 27/34 (2013.01)] 3 Claims
OG exemplary drawing
 
2. A subchannel decoding device, comprising:
processing circuitry performing a process of:
separating a subchannel multiplexed signal into M×N subchannel signals wherein M×N (M and N are an integer of two or more) subchannels are classified into the N groups;
restoring shaped bit strings belonging to each group from the M×N subchannel signals separated; and
providing the N probability distribution shaping-decoders to convert shaped bit strings belonging to each group, restored into information bit strings on a basis of signal to noise ratios of subchannels belonging to each group.