Sayrafian, K.
(2005),
Indoor Positioning Using Spatial Spectrum, Wireless Sensor Network Lab (WSNL), Stanford University, , [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=150176
(Accessed March 12, 2025)
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Indoor Positioning Using Spatial Spectrum
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Abstract
We have implemented a quantum key distribution (QKD) system with polarization encoding at 850 nm over 1 km of optical fiber. The high-speed management of the bit-stream, generation of random numbers and processing of the sifting algorithm are all handled by a pair of custom data handling circuit boards. As a complete system using a clock rate of 1.25 Gbit/s, it produces sifted keys at a rate of 1.1 Mb/s with an error rate lower than 1.3% while operating at a transmission rate of 312.5 Mbit/s and a mean photon number 5 = 0.1. With a number of proposed improvements this system has a potential for a higher key rate without an elevated error rate.Proceedings Title
Wireless Sensor Network Lab (WSNL)
Conference Location
Stanford University,
Pub Type
Conferences
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Created September 7, 2005, Updated February 19, 2017