TY - GEN
T1 - Relay-assisted free-space quantum-key distribution
AU - Safari, Majid
AU - Uysal, Murat
PY - 2009
Y1 - 2009
N2 - In this paper, we investigate a terrestrial relayassisted scheme for a free-space quantum key distribution (QKD) system based on BB84 protocol. We consider the deployment of passive relays which simply redirect (i.e., collect and point) the qubits to the next relay node or to the receiver without performing any measurement or detection process. Based on a near-field analysis, we derive an upper bound on quantum bit error rate (QBER) of the relay-assisted QKD system. Our results demonstrate that the relay-assisted scheme is able to outperform point-to-point direct transmission for long link ranges in which turbulence effects are particularly degrading.
AB - In this paper, we investigate a terrestrial relayassisted scheme for a free-space quantum key distribution (QKD) system based on BB84 protocol. We consider the deployment of passive relays which simply redirect (i.e., collect and point) the qubits to the next relay node or to the receiver without performing any measurement or detection process. Based on a near-field analysis, we derive an upper bound on quantum bit error rate (QBER) of the relay-assisted QKD system. Our results demonstrate that the relay-assisted scheme is able to outperform point-to-point direct transmission for long link ranges in which turbulence effects are particularly degrading.
UR - http://www.scopus.com/inward/record.url?scp=70349934802&partnerID=8YFLogxK
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U2 - 10.1109/CWIT.2009.5069534
DO - 10.1109/CWIT.2009.5069534
M3 - Conference contribution
AN - SCOPUS:70349934802
SN - 9781424434015
T3 - 2009 11th Canadian Workshop on Information Theory, CWIT 2009
SP - 112
EP - 117
BT - 2009 11th Canadian Workshop on Information Theory, CWIT 2009
T2 - 2009 11th Canadian Workshop on Information Theory, CWIT 2009
Y2 - 13 May 2009 through 15 May 2009
ER -