Enhancing Channel Reciprocity for Effective Key Management in Wireless Ad-Hoc Networks

Abstract

We propose key management schemes for wireless ad-hoc networks by utilising the random and reciprocal variations of the wireless channel. For effective key generation, we propose three different methods of enhancing channel reciprocity with appropriate quantisation schemes. The proposed methods are evaluated using real-world channel measurements and validated for better performance in terms of bit disagreement rate, key generation rate, and test of randomness.