Performance enhancement of overall LEO/MEO intersatellite optical wireless communication systems (original) (raw)
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Isowc (Intersatellite Optical Wireless Communication) Has Been Evolved With Great Lot Of Improvement Which Overcomes Many Challenges And Issues That Had Been Gone Through During the use of Fibre Optical Communication Systems.It's An Already Known Fact That The Isowc Channels Provide Us With (A) Higher Bandwidth (B)Lower Size (C)Light Weight (D) Low Power Consumption (E)Low Cost, etc. In This Research, It Is Amphasising On Designing Of 16-Channel Isowc And The Performance Characteristics Obtained From The Mz Modulator And LinbMz Modulator Separately With The Variation In Bit Rate From 3Gbps and 5Gbps by considering the Q-factor. The intersatellite link was modeled and simulated using a commercial optical system simulator named optisystem(14.2) software by Optiwave. The simulation result shows that at lower bit rate MZ modulator provides better quality factor as compared to Li-nb modulator. This thesis fully acknowledges about intersatellite communication link for future development of large data transfer with in different number of satellites(16-channels) with high Quality of Service (qos). Keywords: DWDM system created using ideal Mux and ideal Demux , MZ and LiNb modulator, Q-factor, eye diagram, BER analyser, Bit error rate
IJERT-Performance Evaluation of Optical Intersatellite Links with Varied Parameters
International Journal of Engineering Research and Technology (IJERT), 2015
https://www.ijert.org/performance-evaluation-of-optical-intersatellite-links-with-varied-parameters https://www.ijert.org/research/performance-evaluation-of-optical-intersatellite-links-with-varied-parameters-IJERTV4IS010331.pdf The number of satellites orbiting Earth increase year by year, a network between the satellites provides a method for them to communicate with each other. Laser communication is now able to send information at data rates up to several Gbps and at distance of thousands of kilometers apart. This has open up the idea to adapt optical wireless communication technology into space technology; hence Intersatellite Optical Wireless Communication (IsOWC) is developed. The system performance including Q factor ,bit rates, receiver sensitivity and distance of Low Earth Orbit (LEO) and Medium Earth Orbit (MEO) links were analyzed. The intersatellite link was modeled and simulated using a commercial optical system simulator named OptiSystem 12.0 by Optiwave.
Journal of emerging technologies and innovative research, 2019
In this modern world the role of satellite is important. The data collected by the satellite in the space need to be communicated with the earth station. To achieve high speed data transmission Inter-satellite Optical Wireless Communication(IsOWC) is used. IsOWC system is a good alternative to present microwave satellite system since it uses light at a near infrared frequency to communicate. The IsOWC system has three main parts – transmitter, propagation channel and receiver. In this paper we are comparing the performance of the system in RZ, NRZ and Gaussian pulse generators at 10gbps for different ranges and found that the performance of the system is better in the case of NRZ pulse generator than the other two. The system performance is analysed on the basis of Q-factor and OSNR using Optisystem simulator. Keywords— Inter-satellite Optical Wireless Communication(IsOWC), Non-return to zero(NRZ), Qfactor.
Free space optical communication provides a very important method for the satellites orbiting around the earth to communicate with each other. Inter-satellite optical wireless communication systems (IsOWC) are one of the important applications of FSO/WSO technology that will be expand in space in the near future. These systems provide a high bandwidth, small size, light weight, low power and low cost to present microwave satellite systems. In this paper, optical inter-satellite link (ISL) is modeled using optisystem software between two satellites separated by a distance of 1700 km at data rate 3 Gbps at varying modulation formats.