Abstract
Inter-satellite optical wireless communication (Is-OWC) links can become promising solutions to realize the next-generation high-speed communication services. The operation of Global Navigation Satellite Systems can be improved with the use of Is-OWC links through ranging and communication services. However, the key challenge in Inter-satellite link (ISL) is its effective range which is limited due to pointing errors. In this work, we propose to develop a high-capacity and long-reach Is-OWC link by incorporating hybrid mode division multiplexing (MDM) and wavelength division multiplexing (WDM) schemes to transmit ten independent channels over 40000kms Is-OWC link. Each channel is capable of carrying 400Gbps data which is encoded by the dual polarization quadrature phase shift key technique with required signal to noise ratio (SNR) and received power. The proposed Is-OWC link satisfies the enhanced communication within Geostationary Earth Orbit (GEO) and Low Earth Orbit (LEO) satellites. The proposed Is-OWC is further evaluated under the impact of space turbulences, particularly transmitter and receiver pointing errors. The result reported that the proposed Is-OWC link can transmit 4Tbps data over 16000kms with the transmitter pointing error of 2μrad and receiver pointing error of 1μrad.
Highlights
In 1962, laser technology was first employed in communication systems largely in space communication to deliver global coverage for information broadcast [1]
In our recent work [16], we have demonstrated the use of hybrid spectral amplitude coding optical code division multiple access (SAC-OCDMA) and polarization division multiplexing (PDM) schemes for transmitting 100Gbps data over 25000kms under the impact of space turbulences
The capacity and bandwidth of the proposed Inter-satellite optical wireless communication (Is-OWC) system are enhanced by incorporating hybrid mode division multiplexing (MDM) and wavelength division multiplexing (WDM) schemes
Summary
In 1962, laser technology was first employed in communication systems largely in space communication to deliver global coverage for information broadcast [1]. In our recent work [16], we have demonstrated the use of hybrid spectral amplitude coding optical code division multiple access (SAC-OCDMA) and polarization division multiplexing (PDM) schemes for transmitting 100Gbps data over 25000kms under the impact of space turbulences. In another work [17], authors investigated dual polarization quadrature phase shift keying (DP-QPSK) modulation scheme to transmit 1.6Tbps data over the Is-OWC link of 20000kms. They investigated the performance of their proposed IS-OWC link under the impact of space turbulences. In 2019 [22], authors reported comparative analysis of CSRZ, DRZ and MDRZ-QPSK modulation schemes for Is-OWC system by employing MDM scheme They demonstrated the transmission of 40Gbps data over 4500kms Is-OWC link.
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