Digital Data Transmission by Baseband Pulse Amplitude Modulation (PAM)

1995 ◽  
pp. 103-113
Author(s):  
Steven A. Tretter
Keyword(s):  
Amplitude Modulation ◽  
Data Transmission ◽  
Pulse Amplitude ◽  
Digital Data ◽  
Pulse Amplitude Modulation

scholarly journals PERFORMANCE EVALUATION OF ETHERNET TRANSMISSION USING M-ARY PULSE AMPLITUDE MODULATION TECHNIQUES

2021 ◽  
Vol 26 (4) ◽  
pp. 74-85
Author(s):  
APENA WALIU OLALEKAN ◽  
OLASUNKANMI OMOWUMI GRACE ◽  
SALAKO ANUOLUWAPO
Keyword(s):  
Performance Evaluation ◽  
Amplitude Modulation ◽  
Data Transmission ◽  
High Speed ◽  
Local Area Network ◽  
Pulse Amplitude ◽  
Error Rates ◽  
Full Duplex ◽  
Pulse Amplitude Modulation ◽  
Area Network

Low installation costs and high data rates reaching up to 10 Gbps, characterized Ethernet as the local area network (LAN) technology of choice to satisfy the increasing need for high-speed data transmission in packet-based networks. As demand for high speeds in data has increased, copper Ethernet has been integrated to handle these higher speeds. The IEEE 802.3ae* 2002 (10 Gigabit Ethernet) standard is based on data transmission over optical fibre only and in full-duplex mode. This study considered performance evaluation of Pulse Amplitude Modulation (PAM) and multilevel (PAM-16) technology in comparison with other PAM versions was carried out to investigate copper Ethernet with respect to higher speed characteristic and error performance. The evaluation was carried out in MATLAB R2017b simulation environment; this provides calculated bit error rates (BER) of the considered modulation schemes under different channel conditions. The results show that PAM-16 has a BER of .which is significantly lower than that of PAM-2 and PAM-4. Additionally, Hamming code were used to detect and correct errors that are inherent in the design and the efficiency of each level of PAM used was analyzed.

40 Gbit/s data transmission with 980 nm VCSELs at 120°C using four‐level pulse‐amplitude modulation

2015 ◽  
Vol 51 (19) ◽  
pp. 1517-1519 ◽  
Author(s):  
P. Wolf ◽  
J.A. Lott ◽  
D. Arsenijević ◽  
P. Moser ◽  
H. Li ◽  
...  
Keyword(s):  
Amplitude Modulation ◽  
Data Transmission ◽  
Pulse Amplitude ◽  
Pulse Amplitude Modulation

scholarly journals Inverted p-down Design for High-Speed Photodetectors

Photonics ◽  
2021 ◽  
Vol 8 (2) ◽  
pp. 39
Author(s):  
Masahiro Nada ◽  
Fumito Nakajima ◽  
Toshihide Yoshimatsu ◽  
Yasuhiko Nakanishi ◽  
Atsushi Kanda ◽  
...  
Keyword(s):  
Amplitude Modulation ◽  
Optical Communications ◽  
High Speed ◽  
Pulse Amplitude ◽  
Avalanche Photodiode ◽  
Device Fabrication ◽  
Pulse Amplitude Modulation ◽  
Optical Coupling ◽  
Pin Photodiodes

We discuss the structural consideration of high-speed photodetectors used for optical communications, focusing on vertical illumination photodetectors suitable for device fabrication and optical coupling. We fabricate an avalanche photodiode that can handle 100-Gbit/s four-level pulse-amplitude modulation (50 Gbaud) signals, and pin photodiodes for 100-Gbaud operation; both are fabricated with our unique inverted p-side down (p-down) design.

scholarly journals Differential pulse-amplitude modulation signalling for free-space optical communications

2019 ◽  
Vol 13 (4) ◽  
pp. 155-160 ◽  
Author(s):  
Mohammad Taghi Dabiri ◽  
Seyed Mohammad Sajad Sadough ◽  
Mohammad Ali Khalighi
Keyword(s):  
Amplitude Modulation ◽  
Optical Communications ◽  
Free Space ◽  
Pulse Amplitude ◽  
Differential Pulse ◽  
Pulse Amplitude Modulation ◽  
Free Space Optical
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