Technical Program

Paper Detail

Paper:	MMSP-P1.8
Session:	Multimedia Communications, Applications and 3D Processing
Time:	Tuesday, May 16, 16:30 - 18:30
Presentation:	Poster
Topic:	Multimedia Signal Processing: Multimedia communications and networking
Title:	Network Resource Allocation for Perceptually based Unequal Packet Protection in Voice Communication
Authors:	Steffen Præstholm, BenQ Denmark ApS, Denmark; Søren Skak Jensen, Søren Vang Andersen, Aalborg University, Denmark; Manohar N. Murthi, University of Miami, United States
Abstract:	We address the problem of optimizing resource allocation for Perceptually based Unequal Packet Protection (PUPP) in a packet based voice carrying network. For that purpose, we design a novel real-time working Perceptually Based Classifier (PBC) optimizing the assignment of voice packets to either a Premium (Pch) or an Ordinary (Och) transmission Channel with regard to packet perceptual importance. In particular, our PBC is based on Sliding Window optimization (SWO) and implement PESQa, an improved method to real-time estimation of speech quality. Based on this PBC and a Differentiated Service (DS) implementation of the Pch/Och, objective results indicate that 70\% premium packet assignments optimizes performance over a broad range of loss scenarios on a bottleneck link. Additionally, packet loss statistics gives a clear indication on criteria for optimizing PUPP Pch/Och.