Towards Robust Key Extraction From Multipath Wireless Channels
This paper tackles the problem of generating shared secret keys based on the physical characteristics of the wireless channel. The authors propose intelligent quantization mechanisms for key generation, achieving high secret bits generation rate. Moreover, some practical issues affecting the performance of the key generation mechanism are deeply investigated. Mainly, they investigate the effects of delay and mobility on the performance and they enhance the key generation mechanism accordingly. As a result, this paper presents a framework towards robust key generation from multipath wireless channels.