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8 papers · 1 filter
Difference Antenna Selection and Power Allocation for Wireless Cognitive Systems
Yue Wang, Justin P. Coon
In this paper, we propose an antenna selection method in a wireless cognitive radio (CR) system, namely difference selection, whereby a single transmit antenna is selected at the s…
Avoiding the Detector Blinding Attack on Quantum Cryptography
Z L Yuan, J F Dynes, A J Shields
We show the detector blinding attack by Lydersen et al [1] will be ineffective on most single photon avalanche photodiodes (APDs) and certainly ineffective on any detectors that ar…
Single- and few-electron dynamic quantum dots in a perpendicular magnetic field
S. J. Wright, A. L. Thorn, M. D. Blumenthal +9
We present experimental studies of the current pumped through a dynamic quantum dot over a wide range of magnetic fields. At low fields we observe repeatable structure indicating i…
Distributed Demand Response and User Adaptation in Smart Grids
Zhong Fan
This paper proposes a distributed framework for demand response and user adaptation in smart grid networks. In particular, we borrow the concept of congestion pricing in Internet t…
Interference of dissimilar photon sources
A. J. Bennett, R. B. Patel, C. A. Nicoll +2
If identical photons meet at a semi-transparent mirror they appear to leave in the same direction, an effect called "two-photon interference". It has been known for some time that…
Continuous operation of high bit rate quantum key distribution
A R Dixon, Z L Yuan, J F Dynes +2
We demonstrate a quantum key distribution with a secure bit rate exceeding 1 Mbit/s over 50 km fiber averaged over a continuous 36-hours period. Continuous operation of high bit ra…