Title :
Fresh Prime Codes Evaluation for Synchronous PPM and OPPM Signaling for Optical CDMA Networks
Author :
Karbassian, M. Massoud ; Ghafouri-Shiraz, H.
Author_Institution :
Birmingham Univ., Birmingham
fDate :
6/1/2007 12:00:00 AM
Abstract :
In this paper, we have proposed a novel prime spreading sequence family hereby referred to as ldquodouble-padded modified prime code (DPMPC)rdquo for direct-detection synchronous optical code-division multiple-access (OCDMA) networks. The new code is applied to both pulse-position and overlapping pulse-position modulation CDMA networks, and their performances were evaluated and compared with existing prime codes family. In addition, we have analyzed the system throughput and also introduced a new interference cancellation technique which significantly improves the bit error probability of OCDMA networks.
Keywords :
code division multiple access; codes; error statistics; interference suppression; optical communication; optical modulation; pulse position modulation; DPMPC; bit error probability; double-padded modified prime code; interference cancellation technique; multiple-user interference; optical CDMA network; overlapping pulse-position modulation; prime code evaluation; prime spreading sequence family; synchronous PPM signaling; Error probability; Interference cancellation; Modulation coding; Multiaccess communication; Optical fiber networks; Optical modulation; Optical pulses; Performance evaluation; Pulse modulation; Throughput; Multiple-user interference (MUI); overlapping/pulse position modulations; prime code families; synchronous optical code-division multiple-access (OCDMA);
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2007.896809
