Title :
Channel estimation for secret key establishment in MIMO systems
Author :
Quist, B.T. ; Jensen, Michael A.
Author_Institution :
Dept. of Electr. & Comput. Eng., Brigham Young Univ., Provo, UT, USA
Abstract :
This paper proposes a technique for channel estimation that approximately optimizes the number of secret encryption key bits that can be generated from estimation of the reciprocal electromagnetic propagation in a multipath environment for systems with multiple antennas. Numerical studies demonstrate that the method dramatically improves performance for low signal-to-noise ratio or large antenna arrays.
Keywords :
MIMO communication; antenna arrays; channel estimation; cryptography; electromagnetic wave propagation; MIMO systems; channel estimation; large antenna arrays; low signal to noise ratio; multipath environment; multiple antennas; reciprocal electromagnetic propagation; secret encryption key bits; secret key establishment; Channel estimation; Covariance matrices; MIMO; Optimization; Resource management; Signal to noise ratio; Vectors;
Conference_Titel :
Antennas and Propagation Society International Symposium (APSURSI), 2013 IEEE
Conference_Location :
Orlando, FL
Print_ISBN :
978-1-4673-5315-1
DOI :
10.1109/APS.2013.6710939
