scholarly journals Potential Effects of New Zealand's Policy on Next Generation High-Speed Access Networks

2014 ◽  
Author(s):  
Kay Eric Winkler
Keyword(s):  
High Speed ◽  
Access Networks ◽  
Next Generation

scholarly journals DSP-Based 40 GB/s Lane Rate Next-Generation Access Networks

2018 ◽  
Vol 10 (12) ◽  
pp. 118 ◽  
Author(s):  
Jinlong Wei ◽  
Ji Zhou ◽  
Elias Giacoumidis ◽  
Paul Haigh ◽  
Jianming Tang
Keyword(s):  
Optical Networks ◽  
High Speed ◽  
Digital Signal ◽  
Pulse Amplitude ◽  
Network Capacity ◽  
Access Networks ◽  
Next Generation ◽  
Efficient Manner ◽  
Continuous Growth ◽  
Modulation Format

To address the continuous growth in high-speed ubiquitous access required by residential users and enterprises, Telecommunication operators must upgrade their networks to higher data rates. For optical fiber access networks that directly connect end users to metro/regional network, capacity upgrade must be done in a cost- and energy-efficient manner. 40 Gb/s is the possible lane rate for the next generation passive optical networks (NG-PONs). Ideally, existing 10 G PON components could be reused to support 40 Gb/s lane-rate NG-PON transceiver, which requires efficient modulation format and digital signal processing (DSP) to alleviate the bandwidth limitation and fiber dispersion. The major contribution of this work is to offer insight performance comparisons of 40 Gb/s lane rate electrical three level Duobinary, optical Duobinary, and four-level pulse amplitude modulation (PAM-4) for incorporating low complex DSPs, including linear and nonlinear Volterra equalization, as well as maximum likelihood sequence estimation. Detailed analysis and comparison of the complexity of various DSP algorithms are performed. Transceiver bandwidth optimization is also undertaken. The results show that the choices of proper modulation format and DSP configuration depend on the transmission distances of interest.

Microstructured fibre applications for next-generation access networks

2006 ◽  
Author(s):  
M. Hisatomi ◽  
M.C. Parker ◽  
S.D. Walker
Keyword(s):  
Access Networks ◽  
Next Generation ◽  
Microstructured Fibre

Optimal scheduling in high-speed downlink packet access networks

2010 ◽  
Vol 21 (1) ◽  
pp. 1-27 ◽  
Author(s):  
Hussein Al-Zubaidy ◽  
Ioannis Lambadaris ◽  
Jerome Talim
Keyword(s):  
High Speed ◽  
Access Networks ◽  
Optimal Scheduling ◽  
Packet Access

Evolution to next generation optical access networks

2007 ◽  
Author(s):  
Steve Hornung ◽  
Russell Davey ◽  
Dave Payne ◽  
Derek Nesset
Keyword(s):  
Access Networks ◽  
Optical Access Networks ◽  
Next Generation ◽  
Optical Access

Next generation of adhesion enhancement system for high speed substrate manufacturing

2021 ◽  
Author(s):  
Thomas Thomas ◽  
Patrick Brooks ◽  
Fabian Michalik ◽  
Wonjin Cho
Keyword(s):  
High Speed ◽  
Next Generation

Design Concepts for the Next Generation of High-Speed Diesel-Electric Locomotives

2014 ◽  
Author(s):  
John Tunna ◽  
Jingjun Zhang ◽  
Adrian Gorski
Keyword(s):  
High Speed ◽  
Next Generation ◽  
Design Concepts ◽  
Passenger Rail ◽  
High Speed Diesel ◽  
Unsprung Mass

The Passenger Rail Investment and Improvement Act (PRIIA) Section 305 Next Generation Equipment Committee’s specification for diesel-electric locomotives has several challenging requirements. Among these is limiting P2 Force to 82,000 pound force (lbf) at 125 miles per hour (mph). To achieve this, the locomotive designer would have to balance unsprung mass and axle load. A design envelope exists within which that balance can be achieved. Advanced designs of traction and braking systems are required, and attention has to be paid to minimizing the overall mass of the locomotive.

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