Abstract
A distributed architecture of optical line terminal (OLT) equipment is proposed for response to national bandwidth acceleration requirements and for future smooth evolution to 50G passive optical network (PON). This architecture moves the forwarding function of the control board to each service board to improve the switching capacity and performance of the system. The traditional control boards of centralized architecture OLT equipment have exchange and traffic processing function, and every service board is only controlled by the control board. In the distributed architecture of OLT equipment, control boards still maintain exchange function, whereas service boards have traffic processing functions. This method separates the exchange and traffic processing functions, which improves reliability. This paper also presents optical access network equipment combined with telemetry technology that provides reliable guarantee for intelligent analysis and data mining. Compared with the traditional push mode of network management, the data collected by network management combined with telemetry technology and artificial intelligence (AI) analysis can be used for network planning, assurance of the bandwidth and accurate operation.
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References
ZHANG X, YANG T F, JIA X H. PON monitoring scheme using wavelength-bandwidth identification of a single fiber Bragg grating[J]. IEEE photonics technology letters, 2021, 33(8): 387–390.
WANG T, LIU G. Software defined virtualized access network supporting network slicing and green communication[J]. Journal of computer research and development, 2021, 58(6): 1291–1306.
ZHANG H, HAN X, WANG R Y, et al. Load balancing user association and resource allocation strategy in time and wavelength division multiplexed passive optical network and cloud radio access network joint architecture[J]. Journal of electronics & information technology, 2021, 43(9): 2672–2679.
WANG J, JIA T, WANG S S. Wavelength synchronization technology for UDWDM-PON transmitter based on injection locking[J]. Chinese optics of letters, 2021, 19(1): 7–13.
VARDAKAS J S, MOSCHOLIOS I D, LOGOTHETIS M D, et al. Performance analysis of OCDMA PON configuration supporting multi-rate bursty traffic with retrials and QpS differentiation[J]. Optical switching and networking, 2014, 13(7): 112–123.
LIU Y, LUO F G. Generation and transmission analysis of 4-ary frequency shift keying based on dual-parallel Mach-Zehnder modulator[J]. Front edge of optoelectronics, 2017, 10(2): 160–165.
LI Z Y, CHEN R, HUANG X G, et al. SVM for constellation shaped 8QAM PON system[J]. ZTE communications, 2022, 20(1): 64–71.
LU Y, LIU H Y, ZHOU Q R, et al. A smooth evolution to next generation PON based on pulse position modulation[J]. IEEE photonics technology letters, 2015, 27(2): 173–176.
KUMAR L S, AMARPAL S V, et al. Performance analysis for downstream next generation converged WSN-PON ODN network incorporating diverse phase delay[J]. Fiber and integrated optics, 2017, 36(1/6): 242–251.
KOCHER D, KALER R S, RANDHAWA R. 50 km bidirectional FTTH transmission comparing different PON standards[J]. Optik-international journal for light and electron optics, 2013, 124(21): 5075–5078.
BUTT R A, ASHRAF M W, FAHEEM M. Processing efficient frame structure for passive optical network (PON)[J]. Optical switching and networking, 2018, 30: 85–92.
TOSHIYUKI I, YASUHIKO N, YOICHI M. A proposal of traffic control mechanism in PON based access system[J]. Electronics & communications in Japan, Part 2, Electronics, 2007, 90(7): 41–55.
RAD M M, FATHALLAH H A, RUSCH L A. Performance analysis of fiber fault PON monitoring using optical coding: SNR, SNIR, and false-alarm probability[J]. IEEE transactions on communications, 2010, 58(4): 1182–1192.
MEENAKSHI C, TARAPRASAD C. A scheme for UDWDM-PON broadband access network using a mode locked laser diode and optical injection locking[J]. Journal of optical communications, 2018, 39(4): 407–412.
ZHOU W, MA J X. A novel multi-band OFDMA-PON architecture using signal-to-signal beat interference cancellation receivers based on balanced detection[J]. Photonic network communications, 2016, 32(1): 54–60.
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Tang, Z., Gao, J., Yang, T. et al. Smart OLT equipment of optical access network. Optoelectron. Lett. 19, 159–163 (2023). https://doi.org/10.1007/s11801-023-2146-6
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DOI: https://doi.org/10.1007/s11801-023-2146-6