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Indoor Positioning Using Spatial Spectrum

Published

Author(s)

Kamran Sayrafian

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,

Citation

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 February 25, 2024)
Created September 7, 2005, Updated February 19, 2017