Larrabeiti López, DavidHernández, J. A.Seoane, IsaacRomeral, Ricardo2015-02-182015-02-182012-06Networks and Optical Communications (NOC) (2012) pp. 1-8978-1-4673-0949-3https://hdl.handle.net/10016/2006117th European Conference on Networks and Optical Communications and 7th Conference on Optical Cabling and Infrastructure,took place 2012-Jun-20-22, Vilanova i la Geltrú (Catalonia, Sapin). The web to event http://www.craax.upc.edu/noc2012/So far latency has been regarded as a minor issue in Passive Optical Networks (PONs). However it may become a key factor for the commercial success of PON and WDM-PON. In this work we review the relevance of very-low latency in the access as the enabler of new higly-interactive cloud services. Then, we propose an approach for delay-based differentiation in PON that causes the delay variance to become smaller than in regular IPACT, featuring a reduction of jitter for high-priority traffic. Then we analyse the impact of setting a maximum delay guarantee to high-priority traffic, on low-priority traffic.8application/pdfeng© 2012. IEEEBandwidthDelayHeuristic algorithmsInvestmentsOptical network unitsPassive optical networksWavelength division multiplexingconference paperTelecomunicaciones10.1109/NOC.2012.6249913open access182012 17th European Conference on Networks and Optical Communications (NOC)CC/0000018164