Research on access network link loss rate inference of full source network tomography

The link loss rate of access network has asymmetry.However,single and multiple source network tomography can only infer the link performance of one direction.Therefore,a full source measurement pattern was proposed and link loss rate inference technology based on full source network tomography was researched in this paper.A method of transforming the full source network to the identifiable network was proposed.Furthermore,the EM algorithm and the MCMC algorithm which infer the link loss rate were derived,and their effectiveness was validated by simulation results.