Flexible TWDM PON system with pluggable optical transceiver modules

Cheng, Ning; Gao, Jianhe; Xu, Chong‐Yu; Gao, Bo; Liu, Dekun; Wang, Lei; Wu, Xuming; Zhou, Xiaoping; Lin, Hang; Effenberger, Frank

doi:10.1364/oe.22.002078

Cited by 48 publications

(18 citation statements)

References 4 publications

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“…Likewise, the virtualized scheme presents a number of advantages such as low handover delay, excessive handover reduction, and better network reliability. This results in cost saving, celledge user throughput improvement, and enhanced mobility management [32,36,37]. The associated multiple wavelengths, as well as potential for wavelength tenability, give TWDM-PON unprecedented means of improving the network functionalities compared with the basic TDM-PONs [36,37].…”

Section: Twdm-pon Applicationmentioning

confidence: 99%

“…This results in cost saving, celledge user throughput improvement, and enhanced mobility management [32,36,37]. The associated multiple wavelengths, as well as potential for wavelength tenability, give TWDM-PON unprecedented means of improving the network functionalities compared with the basic TDM-PONs [36,37]. Likewise, orthogonal frequency-division multiplexed PON (OFDM-PON) is another promising PON solution.…”

Section: Twdm-pon Applicationmentioning

confidence: 99%

“…Apart from the inherent huge capacity with 1:64 splitting ratio, it has a long reach of 40 km. The salient features enable TWDM-PON system to meet the future broadband service requirements [37][38][39].…”

Section: Twdm-pon Applicationmentioning

confidence: 99%

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Enabling Optical Wired and Wireless Technologies for 5G and Beyond Networks

Alimi¹,

Tavares²,

Pinho³

et al. 2019

Telecommunication Systems - Principles and Applications of Wireless-Optical Technologies

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The emerging fifth-generation mobile communications are envisaged to support massive number of deployment scenarios based on the respective use case requirements. The requirements can be efficiently attended with ultradense small-cell cloud radio access network (C-RAN) approach. However, the C-RAN architecture imposes stringent requirements on the transport networks. This book chapter presents high-capacity and low-latency optical wired and wireless networking solutions that are capable of attending to the network demands. Meanwhile, with optical communication evolutions, there has been advent of enhanced photonic integrated circuits (PICs). The PICs are capable of offering advantages such as lowpower consumption, high-mechanical stability, low footprint, small dimension, enhanced functionalities, and ease of complex system architectures. Consequently, we exploit the PICs capabilities in designing and developing the physical layer architecture of the second standard of the next-generation passive optical network (NG-PON2) system. Apart from being capable of alleviating the associated losses of the transceiver, the proposed architectures aid in increasing the system power budget. Moreover, its implementation can significantly help in reducing the opticalelectrical-optical conversions issue and the required number of optical connections, which are part of the main problems being faced in the miniaturization of network elements. Additionally, we present simulation results for the model validation.Keywords: 5G, backhaul, centralized unit (CU), common public radio interface (CPRI), distributed unit (DU), fiber to the X (FTTX), fronthaul, functional split, optical wireless communication (OWC), passive optical network (PON), photonic integrated circuits (PICs), radio access network (RAN), radio over fiber (RoF) 1 mobile devices and applications in the networks. This is in an effort to enhance the user experience in delivering enhanced mobile broadband (eMBB) services and providing ultra-reliable low-latency communication (uRLLC) for critical communication and control services. In theory, IoT comprises universal existence of a collection of things like mobile PCs, tablets, smartphones, actuators, sensors, wireless routers, as well as radio-frequency identification (RFID) tags. It is remarkable that these devices are capable of cooperating not only with each other but also with their neighbors. By this approach, they are able to achieve common network goals by means of unique addressing scheme [1,2]. Furthermore, it has been predicted that massive number of mobile devices on which various bandwidth-intensive applications and services will be operating and will be Internet connected [3]. In actual fact, there is a tremendous demand for effective systems that are capable of delivering various services in a cost-effective manner while meeting the essential network demands. Consequently, in an effort to accomplish the next-generation mobile network technical demands, there have been intensive researches on viable solutions th...

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Section: Twdm-pon Applicationmentioning

confidence: 99%

Section: Twdm-pon Applicationmentioning

confidence: 99%

See 1 more Smart Citation

Enabling Optical Wired and Wireless Technologies for 5G and Beyond Networks

Alimi¹,

Tavares²,

Pinho³

et al. 2019

Telecommunication Systems - Principles and Applications of Wireless-Optical Technologies

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show abstract

“…At the receiver side, second interleaver combines the wavelengths coming from splitter and AWG. Hence in this architecture, each OLT transmitter can be used for one to one service, one to many services or many to many services according to the traffic load [20,21].…”

Section: Previous Related Workmentioning

confidence: 99%

Adaptive bandwidth mechanism using dual rate OLT for energy efficient WDM–TDM passive optical network

Garg

Janyani

2017

Telecommun Syst

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This paper reviews various energy efficient approaches in existence and proposes a Hybrid WDM-TDM PON architecture that allows the adaptive bandwidth allocation mechanism to reduce central office power consumption with acceptable performance. Our proposed architecture allows sending two signals, one broadband and other narrowband to each optical networking unit so an appropriate signal can be utilized according to the traffic demand. In case of very low traffic, only narrowband signal is used and a significant amount of energy consumption and OPEX is reduced. By using 2 × N power splitter and interleaver, proposed architecture provides broadcasting at both broadband and narrowband signal depending on the required link rate. This further reduces energy consumption and OPEX by avoiding the transmission of same signal from multiple sources. Offered data rates to the optical distribution networks (ODNs) may also be varied by doubling the wavelength spacing of remote node AWG so that two contiguous wavelengths can be transmitted at each port or ODN. This provides the geographical dynamic bandwidth allocation. Proposed architecture also support simultaneous transmission of both broadband and narrowband signals to the ODN to provide bandwidth scalability and network extensibility for supporting future access network in terms of new users and data rates. As two signals are reaching to any ODN, resiliency against OLT TRx and line card failure is also achieved. The performance of the proposed design is verified by simulation results in terms of bit error rate and receiver sensitivity to demonstrate its feasibility for the next-generation optical access network.

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“…Flexible TWDM PON using hybrid cyclic AWG and power splitter.power saving, and (d) resilience against OLT transceiver failures[27,30].To demonstrate the feasibility of the proposed flexible TWDM PON, an experimental test bed is built with the architecture shown inFig. 7.…”

mentioning

confidence: 99%