LDPC-based Gaussian key reconciliation
Matthieu R. Bloch, Andrew Thangaraj, Stephen McLaughlin, Jean-Marc Mérolla · 2006
We propose a new information reconciliation method which allows two parties sharing continuous random variables to agree on a common bit string. We show that existing coded modulation techniques can be adapted for reconciliation and give an explicit code construction based on LDPC codes in the case of Gaussian variables. Simulations show that our method achieves higher efficiency than previously reported results.