Title :
Design of spatially multiplexed LDPC codes for multi-user detection
Author :
Lechner, Gottfried ; Burg, Andreas
Author_Institution :
Telecommun. Res. Center Vienna (ftw.), Vienna, Austria
Abstract :
The extrinsic information transfer function of multi-user detection for synchronous CDMA is evaluated depending on the load of the system and the signal to noise ratio. This transfer function is used to discuss the benefits of putting redundancy into spreading or coding. Finally, it is shown how low-density parity-check codes can be designed for a specific system.
Keywords :
code division multiple access; multiuser detection; parity check codes; extrinsic information transfer function; low-density parity-check codes; multiuser detection; signal to noise ratio; spatially multiplexed LDPC codes; synchronous CDMA; Detectors; Fading; Interference; Iterative decoding; Signal to noise ratio;
Conference_Titel :
Signal Processing Conference, 2007 15th European
Conference_Location :
Poznan
Print_ISBN :
978-839-2134-04-6
