2015-05-042015-05-042005-01-04Nowak, Robert D. and Coates, Mark J., "Network tomography using closely-spaced unicast packets." Patent US6839754B2. issued 2005-01-04. Retrieved from https://hdl.handle.net/1911/79882.https://hdl.handle.net/1911/79882This work discloses a unicast, end-to-end network performance measurement process which is capable of determining internal network losses, delays, and probability mass functions for these characteristics. The process is based on using groups of closely-spaced communications packets to determine the information necessary for inferring the performance characteristics of communications links internal to the network. Computationally efficient estimation algorithms are provided.19 ppengUtility patentUS6839754B2