TY - JOUR
T1 - A transmission scheme for PPM-OCDMA systems in which the transmitted symbols are embedded in the desired user's weighted positions
AU - Hirano, Tatsuma
AU - Miyazawa, Takaya
AU - Iwata, Ayako
AU - Sasase, Iwao
PY - 2006/10
Y1 - 2006/10
N2 - We propose a transmission scheme designed to increase the number of subscribers without degradation of the bit error probability in an embedded transmission method for optical code division multiple access (OCDMA) with pulse position modulation signaling (PPM). In the conventional scheme, the transmission symbols and their slot positions are embedded in the desired user's weighted positions in M-ary PPM-OCDMA. However, in the proposed scheme, only the transmission symbols are embedded in the desired user's weighted positions. We analyze the bit error rate (BER) of the proposed scheme for a Poisson photon counting process. We show that the proposed scheme can increase the number of simultaneous users compared to the conventional scheme while achieving a BER of ≤;10-9 and keeping the information rate constant.
AB - We propose a transmission scheme designed to increase the number of subscribers without degradation of the bit error probability in an embedded transmission method for optical code division multiple access (OCDMA) with pulse position modulation signaling (PPM). In the conventional scheme, the transmission symbols and their slot positions are embedded in the desired user's weighted positions in M-ary PPM-OCDMA. However, in the proposed scheme, only the transmission symbols are embedded in the desired user's weighted positions. We analyze the bit error rate (BER) of the proposed scheme for a Poisson photon counting process. We show that the proposed scheme can increase the number of simultaneous users compared to the conventional scheme while achieving a BER of ≤;10-9 and keeping the information rate constant.
KW - Embedded transmission
KW - Number of subscribers
KW - Optical code division multiple access
KW - Pulse position modulation
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U2 - 10.1002/ecja.20224
DO - 10.1002/ecja.20224
M3 - Article
AN - SCOPUS:33646771361
SN - 8756-6621
VL - 89
SP - 55
EP - 65
JO - Electronics and Communications in Japan, Part I: Communications (English translation of Denshi Tsushin Gakkai Ronbunshi)
JF - Electronics and Communications in Japan, Part I: Communications (English translation of Denshi Tsushin Gakkai Ronbunshi)
IS - 10
ER -