Cost effective scheme for OLT in next generation passive optical access network based on noise free optical multi carrier

Ullah, Rahat; Liu, Bo; Zhang, Qi; Tian, Qinghua; Ali, Amjad; Khan, Yousaf; Tian, Feng; Zia, Muhammad Azam; Ahmad, Haseeb; Zhang, Lijia; Xin, Xiangjun

doi:10.1109/cc.2016.7513204

Cited by 13 publications

(7 citation statements)

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“…The eye-diagrams clearly show that the equalization improves the quality of multi-channel transmission, and hence improved performance can be achieved as compared with the OCN without equalization. BER below 10 −5 and Q-factor of more than 5 are achieved through simulation, which shows better efficiency as compared with other models, which were presented in [14][15][16][17][18].…”

Section: Paper Contributionsmentioning

confidence: 80%

“…Similar to other techniques, the inverse dispersion property is used to cancel the dispersion effects as it makes use of the high order mode (HOM) [12], which provides a negative dispersion value and a slope over the C band of −270 ps/nm/km at transmission wavelength of 1550 nm and −5.6 ps/nm/km, respectively [13]. HOM has a wide band operation range and is used for dense wavelength division multiplexing (DWDM) systems where multiple wavelengths (covering a large span) are combined with channel spacing of several GHz [14]. Besides the above-mentioned usage of HOM in fiber optics, it includes, not exclusively, usage for space-division multiplexing in OCNs, group velocity dispersion (GVD) compensation, sensing, etc.…”

Section: High Order Mode Fibersmentioning

confidence: 99%

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Adaptive Equalization for Dispersion Mitigation in Multi-Channel Optical Communication Networks

et al. 2019

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Optical communication networks (OCNs) provide promising and cost-effective support for the ultra-fast broadband solutions, thus enabling them to address the ever growing demands of telecommunication industry such as high capacity and end users’ data rate. OCNs are used in both wired and wireless access networks as they offer many advantages over conventional copper wire transmission such as low power consumption, low cost, ultra-high bandwidth, and high transmission rates. Channel effects caused by light propagation through the fiber limits the performance, hence the data rate of the overall transmission. To achieve the maximum performance gain in terms of transmission rate through the OCN, an optical downlink system is investigated in this paper using feed forward equalizer (FFE) along with decision feedback equalizer (DFE). The simulation results show that the proposed technique plays a key role in dispersion mitigation in multi-channel optical transmission to uphold multi-Gb/s transmission. Moreover, bit error rate (BER) and quality factor (Q-factor) below 10 − 5 and above 5, respectively, are achieved with electrical domain equalizers for the OCN in the presence of multiple distortion effects showing the effectiveness of the proposed adaptive equalization techniques.

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Section: Paper Contributionsmentioning

confidence: 80%

Section: High Order Mode Fibersmentioning

confidence: 99%

Adaptive Equalization for Dispersion Mitigation in Multi-Channel Optical Communication Networks

et al. 2019

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“…After expanding Equation with Jacobi–Anger equation, the final equation can be given as :

E_{c o u t} = E_{o} \sum_{n = - \infty}^{n = + \infty} J_{n} true(π M true) . \exp true(j 2 π true(f_{c} + n f_{s} true) t true)

…”

Section: Theoretical Investigations Of the Proposed Modelmentioning

confidence: 99%

“…The generated signals are used in a full duplex access network system by replacing the conventional OLT's light source. The proposed architecture is less expensive than the referenced work with better results [5,7,[11][12][13][14]18,21,23].…”

Section: Performance Analysis Of Awg Based Light Source In Full Dupmentioning

confidence: 99%

“…In the proposed model, we present a high cost effective scheme for next generation optical access network based on the multicarrier signal for 40 Gbps data signal. On comparison to [5,7,[11][12][13][14]18,21,23], the proposed scheme is much cost effective than the referenced articles/schemes. The measures and provisions for cost effective OLT based on a solitary laser source is attained.…”

Section: Introductionmentioning

confidence: 99%

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Proposing simulation model for multi‐wavelength source offering 40 Gbps WDM‐PON using AWG with a single laser

Ullah

Liu

Ullah

et al. 2018

Comp Applic In Engineering

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In this paper, A new simulation model is proposed and implemented for cost effective optical line terminal (OLT) arrangements for wavelength division multiplexed passive optical network (WDM‐PON). The conventional setup at OLT side is replaced with a new arrangement containing single laser source in cascade with phase modulator and arrayed waveguide grating (AWG), whereas the phase modulator is tailored with one RF source. The phase modulator generates multicarrier signal and AWG splits the signal into multiple single wavelengths based on its routing configurations. AWG is actually used as a passing band periodical filter that routs the input wavelengths to four different wavelengths depending on its free spectral range, the frequency spacing between the generated wavelengths is 20 GHz. Across each routed wavelength, differential phase shift keying is used in downlink transmission for 10 Gbps, while intensity modulation is employed in the uplink transmission based on off‐keying. 40 Gbps full duplex transmission via 20 km fiber span is successfully achieved with minimum power loss and effective results. At ONU side, optical splitters divides the signal into two, half power of the signal is used in demodulation at ONU while half of the power is utilized for the uplink transmission, this way colorless transmission is achieved. Transmission performances are examined with negligible power penalties, better Q‐factors, and handsome eye openings, which confirm the deployment of proposed arrangement in the next generation access network. The proposed model is successfully implemented in the simulation environment provided by OptiSystem.

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Fault‐tolerant wireless‐optical broadband access network with cluster‐controlled architecture

Prabha

Ramprasad²

2021

Int J Communication

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Summary The ever increasing demand in wireless connectivity has led PON networks suffer from limitations in mobility and wide area coverage. Wireless networks suffer by bandwidth limitations. Hybridization uses the best characteristics of all networks: wireless networks and optical networks. A lightweight wireless mesh network is a wireless‐optical broadband access network (WOBAN), which has a front end and background effective bandwidth optical network. WOBAN has already suffered from two large network feature faults as well as feeder and fiber breaks. Cluster‐based protection (CBP) mechanism is proposed in order to increase traffic recovery reliability and reduce backup fiber deployment. With minimal fiber distribution cost, CBP efficiently manages single and simultaneous failures from many segments. Long‐term evolution (LTE) technique‐based CBP is implemented in WOBAN. Faults are analyzed by injecting wireless/distribution fiber/multiple feeder fiber. The novel fault tolerant network is built using an efficient automated failure detection and rerouting (AFDRR) algorithm. An efficient automated failure detection and rerouting (AFDRR) algorithm is used for developing the novel fault‐tolerant network. Implementation of orthogonal frequency division multiplexing (OFDM) technology‐based AFDRR‐CBP on WOBAN‐LTE network with the same scenario is analyzed through simulation. The performance measures are compared among CBP‐WOBAN‐LTE network, AFDRR‐CBP‐WOBAN‐LTE network, and OFDM‐based AFDRR‐CBP‐WOBAN‐LTE networks. From the result obtained, it will be revealed that the suggested methodology throughput ratio will increase up to 24.4% when compared to other methodology.

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Cost effective scheme for OLT in next generation passive optical access network based on noise free optical multi carrier

Cited by 13 publications

References 0 publications

Adaptive Equalization for Dispersion Mitigation in Multi-Channel Optical Communication Networks

Adaptive Equalization for Dispersion Mitigation in Multi-Channel Optical Communication Networks

Proposing simulation model for multi‐wavelength source offering 40 Gbps WDM‐PON using AWG with a single laser

Fault‐tolerant wireless‐optical broadband access network with cluster‐controlled architecture

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