PPT-An Empirical Study of Delay Jitter Management Policies

D Stone and K Jeffay Computer Science Department University of North Carolina Chapel Hill ACM Multimedia Systems Volume 2 Number 6 January 1995 Introduction Want to support interactive audio. 52 M z will have a pe riod of 6430 pic sec onds for one c lete cycle Successi ve c cles of a no is free wa ve form will measure exactly 6430 picos ec onds The noise elements that will cause the cloc k pe riod to va ry from 6430 p S are kn own as jitt 5 15 25 35 Jitter Freqiency in MHz RMS Jitter Sensitivity in picoseconds Jitter Measurements Using Phase Locked Loops Z ZQZ Z QQZ Z 587Z Z Q DUT Direct Low Jitter Reference Oscillator Phase Detector Loop Filter Measurement Filter Output at this p MSPS). Extremely low jitter sampling clocks mustperformance is not degraded, because the total jitter is the root-sum-square of the internal sampling clock generation are more often specified in terms (the basics). CS 7270. Networked Applications & Services. Lecture-2. Outline. Basics about voice encoding. Packetization. trade-offs. Architecture of basic VoIP tool. Playback buffer (jitter buffer). CS 332. Spring 2016. A little quiz. Q: What is network latency?. Changes in delay and duration of the changes. time required to transfer data across a network. amount of data that can be transferred, per unit time.. IMPACT ON CLOCK DISTRIBUTION IN LHC EXPERIMENTS. S. BARON - TWEPP 2012. AIM OF . this. talk. Understand. the contributions of all the . systems. to the . bunch. . clock. . jitter. RF system . Long distance transmission . 2.1.Jitter measurements Jitter (absolute) is the cycle-to-cycle variation of fundamental frequency, i.e. the average absolute difference between consecutive periods, expressed as: ()=-iiJitterabsolut Jonathan Owen. Project Purpose. Explain the following concepts:. Theory of DDS operations. Nyquist. zones. Basics of clock jitter. DAC output modes. Clock jitter effects on DDS Waveforms. Acronyms. DDS – Direct Digital Synthesis. Network Performance. Bandwidth and Throughput. Sources. /Definitions . of . latency, jitter and loss. Network properties. Latency. Network . Delays. – . fixed. . and. . variable. Jitter. Variation. IS 333. Spring . 2015. Q1. Q: What is network latency?. Changes in delay and duration of the changes. time required to transfer data across a network. amount of data that can be transferred, per unit time.. Abstract: Total Jitter is an increasingly important quantity in the development and specification of serial data links but, while it is well defined, it is not well understood. Total Jitter is like pe FONT Meeting 19 Feb 2014. 1. Parasitic Studies. D. R. Bett. Shift 1 – 23/01/14. D. R. Bett. 2. FONT Meeting 10 Feb 2014. Run/scan name. Description. Cal. Get. . for. P2, P3. loPhase1. Get. . . 2.2.2012. Goal: monitor clock jitter during ramping BEAM1 clock. . more than 10 ramps done . . different CORDE delay ranging from 4.4ns to 10ns. . PbPb. 2011 delays were 4.4ns - 6.7ns.. also blow-up applied (a slow change of frequency roughly in the middle of the ramp) . Quality of Service (QoS). Objectives. Explain the forwarding per-hop behavior (PHB) for QoS such as classification, marking, queuing, congestion, policing, shaping. Bandwidth, Delay, Jitter, and Loss.