Satellite transmissions survey based on Handover quantum communications networks

Quantum Satellite Communications is a novel branch of transmissions which exploit quantum cryptography phenomena to guarantee the secrecy of quantum cryptographic keys. We report on the development of a Quantum Cryptographic Networks for approach to more secure space communications, including a Handover or Handoff systems and a faint pulse laser source. Through that can be used to encrypt classical message, it will allow the development of global communication with unprecedented security. A big step in the communications from the public service links between users all over the surface of the earth, how it is a major concern for all researchers to improve the yield and quality of telecommunications satellite in the world by improving the characteristics of the handover to achieve global coverage. The essential work carried in our research paper concerns approach development to implement Quantum Communications in satellite constellations networks, in object to reduce the telecommunication interruption risks and this will provide indeed of better free space communication quality.