Paper Info
Title
Performance enhancement of overall LEO/MEO intersatellite optical wireless communication systems
Abstract
AbstractSummaryThis paper has deeply investigated the performance signature of modulation techniques based low earth orbit (LEO)/medium earth orbit (MEO) intersatellite optical wireless communication systems for possible communication coverage distance of 20 000 km with possible transmission bit rate of 0.5 Tb/s. These modulation techniques that are namely multilevel quadrature amplitude modulation (M‐QAM), multilevel phase shift keying (N‐PSK), multilevel pulse amplitude modulation (H‐PAM), and finally multilevel differential phase shift keying (L‐DPSK) based on different electrical pulse generators for upgrading LEO/MEO intersatellite link operation efficiency. These pulse generators that are namely Gaussian pulse generator (GPG), hyperbolic secant pulse generator (HSPG), and raised cosine pulse generator (RCPG). The variations of maximum Q‐factor, minimum bit error rate (BER), and optical signal‐to‐noise ratio in relation to number of bits/symbol for different modulation techniques can be deeply studied in the presence of vertical cavity surface emitting laser (VCSEL). This study is done with using Optiwave system simulation version 7 for different modulation techniques, and all figures are sketched with using wizard Excel sheet set up. It is observed that maximum Q‐factor and minimum BER are optimized with using GPG and 8‐PAM, as well as 4‐DPSK with both HSPG and RCPG.Performance signature of modulation techniques is studied based on low earth orbit/medium earth orbit intersatellite optical wireless communication systems for communication coverage distance of 20 000 km with transmission bit rate of 0.5 Tb/s. Electrical pulse generators can be employed with different electrical pulse modulators to enhance the performance communication link between LEO/MEO for the transmission data rate of 500 Gb/s and coverage distance of 20 000 km. It is indicated that both 4‐DPSK and 8‐PAM modulation techniques have presented optimum values of maximum Q‐factor and minimum BER. View Figure
Year
DOI
Venue
2020
10.1002/sat.1306
Periodicals
Keywords
Field
DocType
coverage distance, GPG, HSPG, low earth orbit (LEO), medium earth orbit (MEO), modulation techniques, RCPG
Performance enhancement,Computer science,Computer network,Communications system,Optical wireless
Journal
Volume
Issue
ISSN
38
1
1542-0973
Citations 
PageRank 
References 
0
0.34
0
Authors
3
Name
Order
Citations
PageRank
Ahmed Nabih Rashed11510.23
Mohammed Salah F. Tabbour200.34
Karuppusamy Natarajan300.34