Patent ID: 11924016
Assignee: MITSUBISHI ELECTRIC CORPORATION
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 5:
6. The method according to claim 1, wherein the multilevel modulation is a 16QAM modulation, and the labeling function is given by the following table, or by the following table modified by rotating the constellation of symbols in the complex plane by an angle multiple of 90°, and/or by applying an axial reflection to the constellation of symbols with respect to the real axis, and/or by applying an axial reflection to the constellation of symbols with respect to the complex axis, and/or by inverting all the bit values:, (c1, . . . , cm)

 
  
   z
   ⁡
   (
   
    
     c
     1
    
    ,
    …
       
    ,
    
     c
     m
    
   
   )
  
  ×
  
   2
   K
  
 

0000
+3−1j

1000
+3−3j

0100
−3−3j

1100
−3−1j

0010
−1−1j

1010
−1−3j

0110
+1−3j

1110
+1−1j

0001
−3+1j

1001
−1+1j

0101
+1+1j

1101
+3+1j

0011
+3+3j

1011
+1+3j

0111
−1+3j

1111
 −3+3j.