Title :
Performance comparison of coherent time-spreading PPM-OCDMA and OOK-OCDMA systems
Author :
Chen, Xiaogang ; Huang, Dexiu
Author_Institution :
College of Science, China Three Gorges University, Yichang, Hubei, 443002 China
Abstract :
We compared the bit-error-rate (BER) and throughput performance of coherent time-spreading (TS) optical code division multiple access (OCDMA) systems with PPM (pulse-position modulation) and OOK (on-off keying) signaling. The results indicate that PPM-OCDMA with an appropriate pulse position multiplicity performs better than OOK-OCDMA in the receivers´ bandwidth limitation case.
Keywords :
Bandwidth; Bit error rate; Modulation coding; Optical modulation; Optical noise; Optical pulse generation; Optical pulses; Optical receivers; Pulse modulation; Throughput; Beat noise; Multiple access interference (MAI); ON-OFF keying (OOK); Optical code division multiplexing access (OCDMA); Pulse-position modulation (PPM); Receivers´ bandwidth limitation;
Conference_Titel :
Communications and Photonics Conference and Exhibition (ACP), 2009 Asia
Conference_Location :
Shanghai, China
Print_ISBN :
978-1-55752-877-3
Electronic_ISBN :
978-1-55752-877-3
