Optical label switching based on Manchester code + NRZ modulation

Lü, Yang; Wang, Yaoyao; Hu, Linghuan; Du, Xun; Ju, Li; Li, Hang; Bi, Meihua

doi:10.1016/j.yofte.2020.102387

Cited by 5 publications

(3 citation statements)

References 12 publications

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“…As for parallel labeling, the label and payload are multiplexed on separate wavelengths or wavelength bands so that they can be processed in parallel [16]. Other parallel labeling schemes modulate the label in a different signal dimension from the payload, such as the frequency, phase, or polarization domains [17][18][19]. Moreover, hybrid labeling schemes express the label format in more than one parameter [20].…”

Section: Introductionmentioning

confidence: 99%

“…This paper considered an OCDM path strategy, exploiting spectral amplitude coding (SAC) [22,[27][28][29][30][31][32] for packet switching. Since the label is placed at a packet's head, the packet duration is increased with the existing label length of time-spreading codes [14][15][16][17][18][19]. When a label is decoded, detecting fast code chips is required, increasing the node complexity.…”

Section: Introductionmentioning

confidence: 99%

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Operating Characteristic Curves of Optical Packet-Switching Using Optical Code-Division Multiplexing for Label Switching

Chen

Pan

2023

Photonics

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In this paper, the operating characteristic curves (OCCs) of optical code-division multiplexing (OCDM) technology for label switching of an optical packet-switching (OPS) network was evaluated. A node structure for processing the packets, with spectral-amplitude-coding (SAC) labels, considering a balanced detector and an optical switch, was developed and modeled. The effects of decoding noises on the performance of both M-sequence and stuffed quadratic congruence (SQC) labeling systems were addressed. Hypothesis testing was applied to the decoder to investigate the results of label recognition. The null and alternative hypotheses were, respectively, defined as a decoder receiving the matching and mismatching labels. Due to the noise effects, the decoder output may not reflect the label status correctly. Type I error occurs when the null hypothesis is true while accepting the alternative one. Type II error occurs when the alternative hypothesis is true while accepting the null one. Analytic equations of both errors were given, considering a desired packet that was missed and an undesired packet shown in a switched path. The trade-off between these two errors, regarding the decoder threshold, was demonstrated in operating characteristic curves (OCCs). A better OCC could be found when a packet had more labeled payload bits, or when the utilized label code had a lower auto-to-cross-correlation ratio.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Operating Characteristic Curves of Optical Packet-Switching Using Optical Code-Division Multiplexing for Label Switching

Chen

Pan

2023

Photonics

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“…In the parallel labeling techniques speed of extracting label is high but packet requires more bandwidth so, in this method the bandwidth is occupied [19]. Intensity modulated payload as well as frequency shift keying (FSK) or Binary phase shift keying (BPSK) label or at different label code are serial labeling techniques [20][21][22][23][24]. These methods are amplitude or phase depended and require synchronization pulse and need fixed packet data length hence, these methods not suitable for flexible optical networks.…”

Section: Introductionmentioning

confidence: 99%

A novel variable-length header extraction scheme based on ring laser for all-optical packet switching network

et al. 2021

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In this paper, a novel header extraction scheme based on semiconductor ring laser is proposed and simulated for proof of principle. This scheme is to be used in all-optical packet switching network which can extract return-to-zero (RZ) format modulation data packet with variable header/payload length and intensive spacing. Simulations and numerical analysis for a 3-byte header and 128-byte payload show that this structure can extract the headers with more than 20 dB contrast ratio. Additionally, the structure simplicity and its small size is proper candida to integration in alloptical circuits.

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A novel code shift keying for label superimposing in optical label switching

Lü

Qian

et al. 2023

Optical Fiber Technology

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Optical label switching based on Manchester code + NRZ modulation

Cited by 5 publications

References 12 publications

Operating Characteristic Curves of Optical Packet-Switching Using Optical Code-Division Multiplexing for Label Switching

Operating Characteristic Curves of Optical Packet-Switching Using Optical Code-Division Multiplexing for Label Switching

A novel variable-length header extraction scheme based on ring laser for all-optical packet switching network

A novel code shift keying for label superimposing in optical label switching

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