Cross-Correlation Interference Effects in Multiaccess Optical Communications

G. D. Peterson; C. S. Gardner

doi:10.1109/TAES.1981.309146

Cross-Correlation Interference Effects in Multiaccess Optical Communications

G. D. Peterson, C. S. Gardner

Electrical and Computer Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

The effects of the cross correlation between user codes in an optical code-division multiple-access communication system are investigated. The system model is a multiaccess satellite repeater in which the uplink and downlink channels are direct-detection, optical-polarization modulation links. The error probability is derived in terms of the cross correlation between the intended and interfering user codes. It is shown that the system error rate can be minimized by using code sequences in which the normalized second moment of the cross correlation between codes is small. The signal-to-noise ratio (SNR) on the uplink is shown to be proportional to 1/K while the SNR on the downlink is proportional to 1/K^1/2, where K is the number of users which are simultaneously accessing the system.

Original language	English (US)
Pages (from-to)	199-207
Number of pages	9
Journal	IEEE Transactions on Aerospace and Electronic Systems
Volume	AES-17
Issue number	2
DOIs	https://doi.org/10.1109/TAES.1981.309146
State	Published - Mar 1981

ASJC Scopus subject areas

Aerospace Engineering
Electrical and Electronic Engineering

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10.1109/TAES.1981.309146

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AB - The effects of the cross correlation between user codes in an optical code-division multiple-access communication system are investigated. The system model is a multiaccess satellite repeater in which the uplink and downlink channels are direct-detection, optical-polarization modulation links. The error probability is derived in terms of the cross correlation between the intended and interfering user codes. It is shown that the system error rate can be minimized by using code sequences in which the normalized second moment of the cross correlation between codes is small. The signal-to-noise ratio (SNR) on the uplink is shown to be proportional to 1/K while the SNR on the downlink is proportional to 1/K1/2, where K is the number of users which are simultaneously accessing the system.

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Cross-Correlation Interference Effects in Multiaccess Optical Communications

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