Title
Experimental study on channel reciprocity in wireless key generation
Abstract
Key generation from wireless channels is a promising alternative to public key cryptography for the establishment of cryptographic keys. It is the first paper to experimentally study the channel reciprocity principle of key generation, through investigating and quantifying channel measurements' cross-correlation relationship affected by noise and non-simultaneous measurements. Channel measurements, both received signal strength and channel state information, are collected from a real experimental platform using the wireless open access research platform (WARP) in a multipath office room. We found that in a slow fading channel (e.g., with a coherence time of about 50 ms), the channel cross-correlation is impacted greatly by noise but little by non-simultaneous measurements with a small sampling time difference (e.g., 0.06 ms). The resolution of the sampling time difference can be satisfied by wireless systems such as IEEE 802.11 to maintain an acceptable cross-correlation coefficient without affecting the bandwidth and communication efficiency.
Year
DOI
Venue
2016
10.1109/SPAWC.2016.7536825
2016 IEEE 17th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC)
Keywords
Field
DocType
Physical layer security,key generation,channel reciprocity
Multipath propagation,Key generation,Fading,Computer science,MIMO,Communication channel,Electronic engineering,Bandwidth (signal processing),Key (cryptography),Channel state information
Conference
ISSN
ISBN
Citations 
2325-3789
978-1-5090-1750-8
6
PageRank 
References 
Authors
0.45
15
5
Name
Order
Citations
PageRank
Junqing Zhang120017.82
R.F. Woods229145.11
Trung Q. Duong32911171.22
Alan Marshall422528.87
Yuan Ding5223.44