LP-DWBA: A DWBA algorithm based on linear prediction in TWDM-PON

Wang, Hongxiang; Liang, Yangyang; Gu, Rentao; Ji, Yuefeng; Ma, Yaoguang; Zhang, Chengliang; Wang, Xiaomu

doi:10.1109/icocn.2015.7203694

Cited by 8 publications

(11 citation statements)

References 7 publications

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“…, for ∀ T-CONT: (18) Even in that case, it is worth highlighting that there will still be a remaining bandwidth available for transferring additional data R l rem due to the rounding off performed by the ceiling function in Eqs. (14) and (16).…”

Section: To Calculate T Lmentioning

confidence: 99%

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Efficient T-CONT-Agnostic Bandwidth and Wavelength Allocation for NG-PON2

Kourtessis

Lim

Merayo

et al. 2019

J. Opt. Commun. Netw.

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Dynamic bandwidth and wavelength allocation are used to demonstrate high quality of service (QoS) in time wavelength-division multiplexed-passive optical networks (TWDM-PONs). Both bandwidth and wavelength assignment are performed on the basis of transmission containers (T-CONTs) and therefore by means of upstream service priority traffic flows. Our medium access control (MAC) protocol therefore ensures consistency in processing alike classes of service across all optical network units (ONUs) in agreement with their QoS figures. For evaluation of the MAC protocol performance, a simulator has been implemented in OPNET featuring a 40 km, 40 Gbps TWDM-PON with four stacked wavelengths at 10 Gbps each and 256 ONUs. Simulation results have confirmed the efficiency of allocating bandwidth to each wavelength and the significant increase of network traffic flow due to adaptive polling from 9.04 to 9.74 Gbps. The benefit of T-CONT-centric allocation has also been measured with respect to packet delay and queue occupancy, achieving low packet delay across all T-CONTs. Therefore, improved NG-PON2 performance and greater efficiency are obtained in this first demonstration of T-CONTs allocated to both wavelength and time.

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Section: To Calculate T Lmentioning

confidence: 99%

“…Furthermore, the authors of Ref. [18] developed a wavelength and bandwidth allocation algorithm based on linear prediction (LP) to dynamically assign resources, therefore reducing the mean end-to-end delay. Besides, the algorithm proposed in Ref.…”

Section: Introductionmentioning

confidence: 99%

Efficient T-CONT-Agnostic Bandwidth and Wavelength Allocation for NG-PON2

Kourtessis

Lim

Merayo

et al. 2019

J. Opt. Commun. Netw.

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“…To better improve the quality of service (QoS) performance of the network, traffic prediction in VPON is needed. For traffic prediction, linear prediction is convenient . In Kramer et al, the REPORT message adds credit to allocate additional bandwidth for ONUs to reduce latency.…”

Section: Introductionmentioning

confidence: 99%

“…Credit is proportional to the requested bandwidth. In Wang et al, a low‐latency dynamic bandwidth allocation (DBA) algorithm using least square method for linear prediction is proposed. For traffic prediction, nonlinear prediction is accurate .…”

Section: Introductionmentioning

confidence: 99%

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A mode transformation algorithm based on traffic prediction in virtual multi‐OLT PON

Zhan

Gan

Wang

et al. 2020

Int J Communication

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Summary In this paper, a mode transformation algorithm based on traffic prediction in virtual multiple optical line terminal (OLT) passive optical network (PON) is proposed. By proposing exponential smoothing algorithm based on weight update (WU‐ESA), user traffic is predicted well. WU‐ESA is a combination of two algorithms: exponential smoothing algorithm (ESA) and genetic algorithm (GA). The weight in ESA is optimized by GA based on real‐number encoding. By setting two periods, GA part and ESA part can be separated effectively. By presenting elastic packing algorithm (EPA), the load balance problem in virtual multi‐OLT PON is solved. EPA is implemented based on WU‐ESA. By the simulation and analysis, the effectiveness of the proposed algorithms is demonstrated. Compared with traditional mode transformation algorithm, EPA shows good performances in delay, throughput, and packet loss. Compared with traditional mode transformation algorithm, the EPA makes the packet loss decrease by at least 5% when the system load is greater than 0.9. Meanwhile, the delay of the two subsystems can be kept at a relatively balanced level by the implement of EPA. For throughput, the use of EPA improves the throughput by 20% when the system load is high.

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Gate-tunable non-volatile photomemory effect in MoS ₂ transistors

et al. 2019

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Non-volatile memory devices have been limited to flash architectures that are complex devices. Here, we present a unique photomemory effect in MoS 2 transistors. The photomemory is based on a photodoping effect -a controlled way of manipulating the density of free charges in monolayer MoS 2 using a combination of laser exposure and gate voltage application. The photodoping promotes changes on the conductance of MoS 2 leading to photomemory states with high memory on/off ratio. Such memory states are non-volatile with an expectation of retaining up to 50% of the information for tens of years. Furthermore, we show that the photodoping is gate-tunable, enabling control of the recorded memory states. Finally, we propose a model to explain the photodoping, and we provide experimental evidence supporting such a phenomenon.In summary, our work includes the MoS 2 phototransistors in the non-volatile memory devices and expands the possibilities of memory application beyond conventional memory architectures.

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LP-DWBA: A DWBA algorithm based on linear prediction in TWDM-PON

Cited by 8 publications

References 7 publications

Efficient T-CONT-Agnostic Bandwidth and Wavelength Allocation for NG-PON2

Efficient T-CONT-Agnostic Bandwidth and Wavelength Allocation for NG-PON2

A mode transformation algorithm based on traffic prediction in virtual multi‐OLT PON

Gate-tunable non-volatile photomemory effect in MoS ₂ transistors

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LP-DWBA: A DWBA algorithm based on linear prediction in TWDM-PON

Cited by 8 publications

References 7 publications

Efficient T-CONT-Agnostic Bandwidth and Wavelength Allocation for NG-PON2

Efficient T-CONT-Agnostic Bandwidth and Wavelength Allocation for NG-PON2

A mode transformation algorithm based on traffic prediction in virtual multi‐OLT PON

Gate-tunable non-volatile photomemory effect in MoS 2 transistors

Contact Info

Product

Resources

About

Gate-tunable non-volatile photomemory effect in MoS ₂ transistors