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Open AccessArticle

Multiple-Code Technique for Multi-Rate Transmissions in Optical Packet Switching Networks Based on OCDMA Labels

School of Electrical and Computer Engineering, Nanfang College of Sun Yat-Sen University, Guangzhou 510970, China
Photonics 2019, 6(2), 60; https://doi.org/10.3390/photonics6020060
Received: 25 April 2019 / Revised: 21 May 2019 / Accepted: 28 May 2019 / Published: 30 May 2019
Supporting multi-rate transmission is an essential factor in current optical packet switching (OPS) networks. In this paper, the author studied a multi-rate scheme capable of forwarding packets with different signal rates based on label switching. The multiple-code (MC) technique was employed to label a packet by conveying its payload bits to multiple optical code-division multiple-access (OCDMA) labels. Spectral-amplitude-coding (SAC), which represents the chips in an OCDMA code as a set of wavelengths, was introduced to remove the multiple-access interference (MAI) from the overlapping among labels. The author tested the system effectiveness by conducting numerical analysis to formulate bit-error probability (BEP) and spectral efficiency (SE). The simulation results showed that the proposed network had a stable BEP performance when switching the packet flows of multiple data-rates. View Full-Text
Keywords: optical packet switching (OPS); optical-code division multiple access (OCDMA); spectral-amplitude-coding (SAC); multi-rate transmission optical packet switching (OPS); optical-code division multiple access (OCDMA); spectral-amplitude-coding (SAC); multi-rate transmission
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Chen, K.-S. Multiple-Code Technique for Multi-Rate Transmissions in Optical Packet Switching Networks Based on OCDMA Labels. Photonics 2019, 6, 60.

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