Experimental Study on Channel Reciprocity in Wireless Key Generation


Autoria(s): Zhang, Junqing; Woods, Roger; Duong, Trung Q.; Marshall, Alan; Ding, Yuan
Data(s)

01/07/2016

Resumo

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.

Identificador

http://pure.qub.ac.uk/portal/en/publications/experimental-study-on-channel-reciprocity-in-wireless-key-generation(9a691b4e-c0da-4e4f-b006-6a938a4a2452).html

http://dx.doi.org/10.1109/SPAWC.2016.7536825

http://pure.qub.ac.uk/ws/files/82284775/Key_geneneration_SPAWC.pdf

Idioma(s)

eng

Direitos

info:eu-repo/semantics/openAccess

Fonte

Zhang , J , Woods , R , Duong , T Q , Marshall , A & Ding , Y 2016 , Experimental Study on Channel Reciprocity in Wireless Key Generation . in 2016 IEEE 17th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC) . pp. 1-5 , The 17th IEEE International workshop on Signal Processing Advances in Wireless Communications , Edinburgh , United Kingdom , 3-6 July . DOI: 10.1109/SPAWC.2016.7536825

Palavras-Chave #Physical layer security #Key generation #channel reciprocity
Tipo

contributionToPeriodical

Formato

application/pdf