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Proceedings Paper

Secure satellite communication using multi-photon tolerant quantum communication protocol
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Paper Abstract

This paper proposes and analyzes the potential of a multi-photon tolerant quantum communication protocol to secure satellite communication. For securing satellite communication, quantum cryptography is the only known unconditionally secure method. A number of recent experiments have shown feasibility of satellite-aided global quantum key distribution (QKD) using different methods such as: Use of entangled photon pairs, decoy state methods, and entanglement swapping. The use of single photon in these methods restricts the distance and speed over which quantum cryptography can be applied.

Contemporary quantum cryptography protocols like the BB84 and its variants suffer from the limitation of reaching the distances of only Low Earth Orbit (LEO) at the data rates of few kilobits per second. This makes it impossible to develop a general satellite-based secure global communication network using the existing protocols. The method proposed in this paper allows secure communication at the heights of the Medium Earth Orbit (MEO) and Geosynchronous Earth Orbit (GEO) satellites. The benefits of the proposed method are two-fold: First it enables the realization of a secure global communication network based on satellites and second it provides unconditional security for satellite networks at GEO heights. The multi-photon approach discussed in this paper ameliorates the distance and speed issues associated with quantum cryptography through the use of contemporary laser communication (lasercom) devices. This approach can be seen as a step ahead towards global quantum communication.

Paper Details

Date Published: 1 September 2015
PDF: 7 pages
Proc. SPIE 9615, Quantum Communications and Quantum Imaging XIII, 961509 (1 September 2015); doi: 10.1117/12.2188575
Show Author Affiliations
Bhagyashri Darunkar, The Univ. of Oklahoma, Tulsa (United States)
Nikhil Punekar, The Univ. of Oklahoma, Tulsa (United States)
Pramode K. Verma, The Univ. of Oklahoma, Tulsa (United States)


Published in SPIE Proceedings Vol. 9615:
Quantum Communications and Quantum Imaging XIII
Ronald E. Meyers; Yanhua Shih; Keith S. Deacon, Editor(s)

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