Title :
A unified framework for key agreement over wireless fading channels
Author :
Lai, Lifeng ; Poor, H. Vincent
Author_Institution :
Dept. of Electr. Eng., Princeton Univ., Princeton, NJ, USA
Abstract :
A framework that unifies existing source and channel models for key agreement over wireless fading channels is developed in this paper. It is shown that, in general, to fully exploit the resources provided by time-varying channel gains, one needs to combine both the channel model and the source model. Asymptotic analyses suggest that in the long coherence time regime, the channel model is asymptotically optimal. On the other hand, in the high SNR regime, the source model is asymptotically optimal.
Keywords :
fading channels; telecommunication security; asymptotic analyses; channel model; signal to noise ratio; source model; time-varying channel gains; wireless fading channels; Coherence; Communication system security; Conferences; Fading; Information security; Information theory; Niobium; Time-varying channels;
Conference_Titel :
Information Theory Workshop, 2009. ITW 2009. IEEE
Conference_Location :
Taormina
Print_ISBN :
978-1-4244-4982-8
Electronic_ISBN :
978-1-4244-4983-5
DOI :
10.1109/ITW.2009.5351257
