scholarly journals Multiple Access Techniques for Bipolar Optical Code Division in Wireless Optical Communications

IEEE Access ◽  
2020 ◽  
Vol 8 ◽  
pp. 83511-83523 ◽  
Author(s):  
Hsu-Chih Cheng ◽  
Eddy Wijanto ◽  
Tzu-Chieh Lien ◽  
Po-Han Lai ◽  
Shin-Pin Tseng
Keyword(s):  
Optical Communications ◽  
Multiple Access ◽  
Wireless Optical Communications

Performances enhancement of underwater wireless optical communications (UWOC) using pulse position modulation

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Chahinaz Kandouci
Keyword(s):  
Optical Communications ◽  
Code Division Multiple Access ◽  
Multiple Access ◽  
Pulse Position Modulation ◽  
Optical Wireless Communication ◽  
Optical Wireless ◽  
Modulation Type ◽  
Transmission Link ◽  
Wireless Optical Communications ◽  
Code Division Multiple

Abstract In this work, we study the performance analysis of underwater optical wireless communication (UOWC) transmission link by incorporating optical code division multiple access (OCDMA) using pulse position modulation (PPM) to enhance the channel range and cardinality. Bit error rate (BER) variations are examined versus the range, modulation type (on–off keying (OOK), quadrature amplitude modulation (QAM), etc.), number of users as well as the channel attenuation caused by different water types. The power and transmitter inclination angle limitation, of the enhanced system, are also presented in order to determine the threshold for which the minimum BER 10−9 is achievable.

scholarly journals Underwater Wireless Optical Communications Using Silicon Photo-Multipliers

2017 ◽  
Vol 9 (4) ◽  
pp. 1-10 ◽  
Author(s):  
Mohammad-Ali Khalighi ◽  
Tasnim Hamza ◽  
Salah Bourennane ◽  
Pierre Leon ◽  
Jan Opderbecke
Keyword(s):  
Optical Communications ◽  
Wireless Optical Communications
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