Interleave-division multiple access (IDMA) using low-rate layered LDGM codes

Francisco J. Vázquez-Araújo, Miguel González-López, Luis Castedo, Javier Garcia-Frias
2010 Wireless Communications and Mobile Computing  
We propose the use of low-rate layered serially concatenated low-density generator matrix (SCLDGM) codes in interleavedivision multiple access (IDMA) systems to approach the multiuser capacity. We study the behavior of the soft interference cancellation (SIC) detector employed in IDMA systems and design the channel codes using EXtrinsic Information Transfer (EXIT) evolution, aiming at optimizing the system performance. Simulation results show that the designed codes approach the theoretical
more » ... ts and outperform previous IDMA schemes based on Turbo-Hadamard codes.
doi:10.1002/wcm.1055 fatcat:mlrfetgk4ndaxbqyebnlk6j2nq