An Energy and Cost Efficient WDM/OFDMA PON System: Design and Demonstration

Yuang, M.C.; Hsu, Dar-Zu; Tien, Po-Lung; Chen, Hsing-Yu; Wei, Chia-Chien; Chen, Shin-Hao; Chen, Jyehong

doi:10.1109/jlt.2013.2273932

Cited by 19 publications

(13 citation statements)

References 15 publications

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“…TDM-PON requires highly complicated burst mode transmitters and receivers at ONU and OLT respectively. Currently, development of high-speed burst mode transmitters and receivers are still not at matured stage [7]. Insertion losses of TDM-PON are also high and become significant for higher fan-out ratios [1,8].…”

Section: Introductionmentioning

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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Section: Introductionmentioning

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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“…Among these techniques, WDM-based stacked PON systems have attracted a great deal of research and development interest [4]- [10], due to their capable of providing cost-effective way for increasing the overall bit rate and transmission reach of networks. Furthermore, the orthogonal frequency division multiplexing (OFDM) is widely considered as one of the strongest candidate for stacked WDM-based PON system, owing to its unique advantages of superior tolerance to chromatic dispersion impairments, dynamic provision of multi-granularity bandwidth allocation both in time and frequency domains, and fully exploiting the rapid advances in modern digital signal processing technology [8]- [14].…”

Section: Introductionmentioning

confidence: 99%

Power Budget Improved Symmetric 40-Gb/s Long Reach Stacked WDM-OFDM-PON System Based on Single Tunable Optical Filter

Xiao

et al. 2014

IEEE Photonics J.

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We propose a stacked wavelength-division-multiplexed orthogonal-frequencydivision-multiplexed passive optical network (WDM-OFDM-PON) system that is capable of transmitting 10-Gb/s per wavelength downstream OFDM signals and directly modulated upstream on-off keying (OOK) signals up to 100 km without any repeater. In this scheme, we use our specially designed electronic controlled liquid tunable optical filter to simultaneously select downstream signals and process upstream signal chirp. By experiment, we demonstrate this bidirectional transmission system and achieve error-free transmission performance over different fiber distances. A power budget of 35.6 dB for 25-km fiber transmission is obtained to support 1 : 512 splitting ratios. Through 100-km fiber transmission, a 34.4-dB optical power budget with a nonrepeater is also achieved. Moreover, the effects of various system parameters such as filter profile and downstream signals' launched power, are also investigated in detail by simulation and experiment for improving system performance.

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“…Therefore, optical access networks need to provide higher and higher data transmission speeds in the same time trying to keep capital and operational expenditure as low as possible due to their cost sensitivity [2,4]. Passive optical networks (PONs) have been considered to be one of the most promising solutions for access networks due to its broad bandwidth and low cost infrastructure [5].…”

mentioning

confidence: 99%

“…The first one is need to support high bandwidth and the second one is to use an architectures which is both cost and energy efficient [4,5]. Notably, spectrum-sliced wavelength-division-multiplexed passive optical network (SS-WDM PON) can be cost effective solution to satisfy the growing global demand for transmission capacity in next generation fiber optical access networks [6,7].…”

mentioning

confidence: 99%

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Realization of dense bidirectional spectrum sliced WDM-PON access system

Spolītis

Olonkins

Poriņš

2014

2014 9th International Symposium on Communication Systems, Networks &Amp; Digital Sign (CSNDSP)

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The present paper proposes high speed dense 8-channel bidirectional WDM-PON access system where spectrally-uniform ASE source is shared among multiple users for realization of downstream transmission. Upstream transmission is realized by using conventional laser based solution. Proposed system is based on ITU-T DWDM grid and operating at 10 Gbit/s per channel symmetrically on both directions. It is demonstrated that implemented spectrum slicing technology is capable to provide downstream data transmission over 20 km SMF fiber span with BER<10 -12 by using additional fiber Bragg grating chromatic dispersion compensation module and excess intensity noise reduction by additional semiconductor optical amplifier.

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An Energy and Cost Efficient WDM/OFDMA PON System: Design and Demonstration

Cited by 19 publications

References 15 publications

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

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

Power Budget Improved Symmetric 40-Gb/s Long Reach Stacked WDM-OFDM-PON System Based on Single Tunable Optical Filter

Realization of dense bidirectional spectrum sliced WDM-PON access system

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