Sum capacity of the OCDMA/OCDMA signature sequence set

Sum capacity of the OCDMA/OCDMA signature sequence set

The sum capacity of the OCDMA/OCDMA (O/O) signature sequence set is investigated under the assumption of equal average-input-energy constraints and perfect synchronization of the users. It is shown that the spectral efficiency of the O/O signature sequence set is only dependent on the SNR and load,...

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Veröffentlicht in:IEEE communications letters 2002-08, Vol.6 (8), p.340-342
Hauptverfasser: Vanhaverbeke, F., Moeneclaey, M.
Format: Artikel
Sprache:eng
Schlagworte:
Additive white noise
Applied sciences
Channel capacity
Exact sciences and technology
Information processing
Modulation coding
Multiaccess communication
Propagation losses
Scalability
Signatures
Spectra
Spread spectrum communication
Synchronism
Synchronization
Systems, networks and services of telecommunications
Telecommunications
Telecommunications and information theory
Transmission and modulation (techniques and equipments)
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Beschreibung
Zusammenfassung:The sum capacity of the OCDMA/OCDMA (O/O) signature sequence set is investigated under the assumption of equal average-input-energy constraints and perfect synchronization of the users. It is shown that the spectral efficiency of the O/O signature sequence set is only dependent on the SNR and load, but independent of the choice of the orthogonal bases. Moreover, this sequence set is found to be only slightly less efficient in terms of sum capacity than the Welch-bound equality sequences.
ISSN:1089-7798
1558-2558
DOI:10.1109/LCOMM.2002.802039