Clocking and Clock Skew Optimization

Timing ◽  
2006 ◽  
pp. 181-206
Keyword(s):  
Clock Skew

scholarly journals Synchronization in 5G networks: a hybrid Bayesian approach toward clock offset/skew estimation and its impact on localization

2021 ◽  
Vol 2021 (1) ◽  
Author(s):  
Meysam Goodarzi ◽  
Darko Cvetkovski ◽  
Nebojsa Maletic ◽  
Jesús Gutiérrez ◽  
Eckhard Grass
Keyword(s):  
Bayesian Approach ◽  
Large Scale ◽  
Hybrid Approach ◽  
Position Estimation ◽  
5G Networks ◽  
Clock Skew ◽  
Depth Analysis ◽  
The Impact ◽  
Mean Square Errors ◽  
Clock Offset

AbstractClock synchronization has always been a major challenge when designing wireless networks. This work focuses on tackling the time synchronization problem in 5G networks by adopting a hybrid Bayesian approach for clock offset and skew estimation. Furthermore, we provide an in-depth analysis of the impact of the proposed approach on a synchronization-sensitive service, i.e., localization. Specifically, we expose the substantial benefit of belief propagation (BP) running on factor graphs (FGs) in achieving precise network-wide synchronization. Moreover, we take advantage of Bayesian recursive filtering (BRF) to mitigate the time-stamping error in pairwise synchronization. Finally, we reveal the merit of hybrid synchronization by dividing a large-scale network into local synchronization domains and applying the most suitable synchronization algorithm (BP- or BRF-based) on each domain. The performance of the hybrid approach is then evaluated in terms of the root mean square errors (RMSEs) of the clock offset, clock skew, and the position estimation. According to the simulations, in spite of the simplifications in the hybrid approach, RMSEs of clock offset, clock skew, and position estimation remain below 10 ns, 1 ppm, and 1.5 m, respectively.

A New Method to Enhance Performance of Digital Frequency Measurement and Minimize the Clock Skew

2011 ◽  
Vol 11 (10) ◽  
pp. 2421-2425 ◽  
Author(s):  
N. Suresh Kumar ◽  
D. V. Rama KotiReddy
Keyword(s):  
Frequency Measurement ◽  
New Method ◽  
Clock Skew ◽  
Digital Frequency

scholarly journals Power-mode-aware buffer synthesis for low-power clock skew minimization

2016 ◽  
Vol 13 (14) ◽  
pp. 20160511-20160511
Author(s):  
Shih-Hsu Huang ◽  
Chun-Hua Cheng
Keyword(s):  
Low Power ◽  
Clock Skew ◽  
Power Mode

scholarly journals A column-parallel clock skew self-calibration circuit for time-resolved CMOS image sensors

2015 ◽  
Vol 12 (24) ◽  
pp. 20150911-20150911 ◽  
Author(s):  
Lianghua Miao ◽  
Keita Yasutomi ◽  
Shoma Imanishi ◽  
Shoji Kawahito
Keyword(s):  
Image Sensors ◽  
Clock Skew ◽  
Time Resolved ◽  
Self Calibration ◽  
Cmos Image Sensors

Clock Skew Optimization for Peak Current Reduction

1997 ◽  
pp. 5-18 ◽  
Author(s):  
L. Benini ◽  
P. Vuillod ◽  
A. Bogliolo ◽  
G. De Micheli
Keyword(s):  
Clock Skew ◽  
Peak Current ◽  
Current Reduction
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