A fast path-based approach to infer link loss rates by explicitestimation

摘要

To estimate the link loss rates using network tomography, this paper proposes a Fast Path-based Approach (FPA) byexplicit estimation. Instead of inferring the link loss rates directly, we first infer the path loss rates from which we caneasily derive the link loss rates. In addition, the path loss rates are inferred by a new estimator which is an explicitfunction of loss observations. The presented estimator is analytical and only requires simple arithmetic calculation. It isalso proved to be consistent and have the same asymptotic variance as that of the maximum likelihood estimator (MLE).The simulation results show that the FPA can accurately estimate the link loss rates.