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Erschienen in:
2009 | OriginalPaper | Buchkapitel
Performance Analysis of OCDMA Communication Systems
Erschienen in: Optical Code Division Multiple Access Communication Networks
Verlag: Springer Berlin Heidelberg
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From the previous chapters we have learned that a typical OCDMA communication system can be shown as in Fig. 5.1. We assume that there are totally
M
subscribers implementing full duplex communication in an OCDMA network and
N
users are active and share the common channels at the same time. (In a practical network, all subscribers connected to a network are not always activated, especially in a subscriber access network and, as a matter of fact, the number of subscribers activated at the same time accounts for about 10% of the total number[
1
].) We suppose that if the
j
th
subscriber wants to send data information to the
k
th
user, the address code for receiver
k
is impressed upon the data by the encoder at the
j
th
node. One of the primary goals of OCDMA is to extract data with the desired optical pulse sequence in the presence of all other users’ optical pulse sequences.