Measurement-based Signal Quality Test of High-speed TSV Channel

2012 ◽  
Vol 2012 (1) ◽  
pp. 000295-000302 ◽  
Author(s):  
Heegon Kim ◽  
Jonghyun Cho ◽  
Daniel H. Jung ◽  
Jonghoon J. Kim ◽  
Joungho Kim ◽  
...  
Keyword(s):  
High Speed ◽  
Equivalent Circuit Model ◽  
Estimation Algorithm ◽  
Signal Quality ◽  
Quality Test ◽  
Eye Diagram ◽  
Measurement Results ◽  
Time Domains ◽  
Channel Loss

In this paper, measurements of high-speed TSV channel were performed in frequency- and time-domains for the signal quality test. The channel loss was measured up to 20 GHz in frequency-domain and the eye-diagram was measured up to 10 Gbps in time-domain. To analyze the measurement results, the equivalent-circuit model of high-speed TSV channel and the worst eye-diagram estimation algorithm were introduced. By using them, the impacts of silicon-conductance and oxide-capacitance on channel loss were analyzed. Moreover, the negligible impact of reflection on the signal quality of the high-speed TSV channel was also analyzed. These measurement-based signal quality analyses can provide the useful insight and design guidance for high-speed TSV channel.

scholarly journals Signal Quality Analysis Using G-Nettrack Pro in Malang City

2020 ◽  
Vol 10 (2) ◽  
pp. 124-128
Author(s):  
Dania Sartika Anggraeni ◽  
Aisah Aisah ◽  
Abdul Rasyid
Keyword(s):  
Telecommunication Networks ◽  
Quality Analysis ◽  
Signal Quality ◽  
Coverage Area ◽  
Lte Networks ◽  
Data Services ◽  
Measurement Results ◽  
Wireless Telecommunication ◽  
Base Transceiver Station

Currently, wireless telecommunication networks (wireless) have developed very rapidly. To meet the demands of today's mobile users for data rate transfer and data services. The application of LTE technology has been intensively carried out in several countries, including Indonesia. The problem that is often faced is the limited coverage area of ??the Base Transceiver Station (BTS) so that not all areas can be covered by the 4G network. Based on this background, this thesis will analyze the performance and signal quality of LTE networks in Malang City. This measurement is done using the G-Nettrack Pro application and the parameters to be measured in this study are RSRQ, RSRP, SINR and Throughput. The location of eNodeB used for research is in 2 Districts in Malang City. From the measurement results of the drive test, it was found that the area of ??Sawojajar and Malang City had a max RSRP value of -64 dBm, a min RSRP of -105 dBm, an average RSRP of -83.2 dBm in the Very good category. RSRQ max -6 dB, min RSRQ -11 dB, and average RSRQ -10.05 dB in the Normal category. SINR max 25 dB, SINR min -3 dB, and SINR average 9.65 dB in the Good category. Uplink max 14546 kbps, Uplink min 0, and an average Uplink 19.96 kbps in the Very bad category. Downlink max 15564 kbps, Downlink min 0, and downlink average 28.6 kbps in the Very bad category.

scholarly journals Simulation of two dimensional OCDMA-PON system based on FBGs

2021 ◽  
Vol 2113 (1) ◽  
pp. 012071
Author(s):  
Mingzhu Zheng ◽  
Qiwu Wu ◽  
Yang Zhou ◽  
Lingzhi Jiang ◽  
Jiaqi Liu
Keyword(s):  
Output Signal ◽  
Optical Network ◽  
Passive Optical Network ◽  
Signal Quality ◽  
Two Dimensional ◽  
Network Systems ◽  
Eye Diagram ◽  
Transmission Distance ◽  
Communication Software

Abstract In order to study the effect of transmission distance on the performance of optical code division multiplexing passive optical network systems based on fiber Bragg Grating (FBG), a two-dimensional OCDMA-PON system based on cascaded FBGs is designed and constructed by using the VPI optical communication software. The spectrum, waveform and eye diagram of the output signal are analyzed by setting different fiber lengths in the system. The experimental results show that different fiber lengths have different effects on the system. Within a certain transmission distance, the longer the fiber length, the smaller the error generated by the output signal and the better the signal quality; beyond this certain distance, the quality of the output signal deteriorates sharply and the error generated becomes larger.

Investigation of Coverage and Signal Quality of LoRaWAN Network in Urban Area

2020 ◽  
Author(s):  
Roni Apriantoro ◽  
Amin Suharjono ◽  
Kurnianingsih Kurnianingsih ◽  
I Ketut Agung Enriko
Keyword(s):  
Urban Area ◽  
Signal Quality

Fast and Accurate Estimation of Statistical Eye Diagram for Nonlinear High-Speed Links

2021 ◽  
pp. 1-9
Author(s):  
Xiuqin Chu ◽  
Wenting Guo ◽  
Jun Wang ◽  
Feng Wu ◽  
Yuhuan Luo ◽  
...  
Keyword(s):  
High Speed ◽  
Accurate Estimation ◽  
Eye Diagram

scholarly journals The Optical Signal-to-Crosstalk Ratio for the MBA(N, e, g) Switching Fabric †

Sensors ◽  
2021 ◽  
Vol 21 (4) ◽  
pp. 1534
Author(s):  
Remigiusz Rajewski
Keyword(s):  
Optical Switching ◽  
Essential Feature ◽  
Optical Signal ◽  
Point Of View ◽  
Signal Quality ◽  
Switching Networks ◽  
Optical Elements ◽  
Optical Signals ◽  
Switching Fabric

The banyan-type switching networks, well known in switching theory and called the logdN switching fabrics, are composed of symmetrical switching elements of size d×d. In turn, the modified baseline architecture, called the MBA(N,e,g), is only partially built from symmetrical optical switching elements, and it is constructed mostly from asymmetrical optical switching elements. Recently, it was shown that the MBA(N,e,g) structure requires a lower number of passive as well as active optical elements than the banyan-type switching fabric of the same capacity and functionality, which makes it an attractive solution. However, the optical signal-to-crosstalk ratio for the MBA(N,e,g) was not investigated before. Therefore, in this paper, the optical signal-to-crosstalk ratio in the MBA(N,e,g) was determined. Such crosstalk influences the output signal’s quality. Thus, if such crosstalk is lower, the signal quality is better. The switching fabric proposed in the author’s previous work has lower optical signal losses than a typical Beneš and banyan-type switching networks of this same capacity and functionality, which gives better quality of transmitted optical signals at the switching node’s output. The investigated MBA(N,e,g) architecture also contains one stage fewer than banyan-type network of the same capacity, which is an essential feature from the optical switching point of view.

High-Speed Imaging to Study an Auto-Oscillating Vocal Fold Replica for Different Initial Conditions

2017 ◽  
Vol 09 (05) ◽  
pp. 1750064 ◽  
Author(s):  
A. Van Hirtum ◽  
X. Pelorson
Keyword(s):  
Vocal Fold ◽  
High Speed ◽  
Initial Conditions ◽  
Vocal Folds ◽  
High Speed Imaging ◽  
Human Voice ◽  
Manual Intervention ◽  
Geometrical Features ◽  
Upstream Pressure

Experiments on mechanical deformable vocal folds replicas are important in physical studies of human voice production to understand the underlying fluid–structure interaction. At current date, most experiments are performed for constant initial conditions with respect to structural as well as geometrical features. Varying those conditions requires manual intervention, which might affect reproducibility and hence the quality of experimental results. In this work, a setup is described which allows setting elastic and geometrical initial conditions in an automated way for a deformable vocal fold replica. High-speed imaging is integrated in the setup in order to decorrelate elastic and geometrical features. This way, reproducible, accurate and systematic measurements can be performed for prescribed initial conditions of glottal area, mean upstream pressure and vocal fold elasticity. Moreover, quantification of geometrical features during auto-oscillation is shown to contribute to the experimental characterization and understanding.

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