Title :
Study of Parallel Interference Cancellation Structures for Incoherent DS-OCDMA Systems
Author :
Goursaud, C. ; Julien-Vergonjanne, A. ; Aupetit-Berthelemot, C. ; Cances, J.-P. ; Dumas, J.M.
Author_Institution :
Limoges Univ.
Abstract :
In incoherent direct sequence optical code division multiple access system (DS-OCDMA), one of the principal limitations is multiple access interference (MAI) due to unipolar coding. To mitigate MAI, we applied a parallel interference cancellation technique (PIC) to remove non-desired users´ contribution. We study in this paper, the performances of the PIC improved by hard limiters, when they are placed before the non-desired users or the desired user receiver. We develop the theoretical error probability expressions for the 4 receivers structure, and show the performances of such receivers as a function of the code parameters
Keywords :
code division multiple access; error statistics; interference suppression; light interference; optical receivers; spread spectrum communication; DS-OCDMA systems; direct sequence optical code division multiple access system; error probability; hard limiters; parallel interference cancellation; receiver; Error probability; High speed optical techniques; Interference cancellation; Multiaccess communication; Multiple access interference; Optical fiber LAN; Optical fiber networks; Optical noise; Optical receivers; Radio frequency;
Conference_Titel :
Communications, 2005 Asia-Pacific Conference on
Conference_Location :
Perth, WA
Print_ISBN :
0-7803-9132-2
DOI :
10.1109/APCC.2005.1554203
