31 sample documents related to CS 6181

• 
  ipv61.pdf

  Columbia CS 6181
  

  IPv6 1 IPng (IPv6) June 6, 1998 IPv6 2 Motivation Currently: mainly servers, workstations, SLIP/PPP Address space exhaustion + new uses: permanently attached home computers (CATV) game consoles mobile terminals (PDAs) embedded controllers (
   
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  mcast.pdf

  Columbia CS 6181
  

  Multicast 1 IP Multicast September 20, 2001 Multicast 2 Overview applications models host APIs LAN (IGMP, LAN switches) intra-domain routing inter-domain routing address allocation Additional references (some are dated!): Stephen A. Tho
   
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  audio_long.pdf

  Columbia CS 6181
  

  Audio 1 Audio and Speech October 2, 2001 Audio 2 Digital sound anti-aliasing amplifier filter A D 1mV A D codec G.7xx packetization G.7xx October 2, 2001 Audio 3 Digital audio sample each audio channel and quantize pulse-code modulatio
   
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  paper1.pdf

  Columbia CS 6181
  

   
   
• 
  kyriakakis.pdf

  Columbia CS 6181
  

  Fundamental and Technological Limitations of Immersive Audio Systems CHRIS KYRIAKAKIS, MEMBER, IEEE Numerous applications are currently envisioned for immersive audio systems. The principal function of such systems is to synthesize, manipulate, and
   
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  mpegaud.pdf

  Columbia CS 6181
  

  Copyright (c) 1996 Institute of Electrical and Electronics Engineers. Reprinted, with permission, from the IEEE Multimedia Journal, Summer 1995 issue. This material is posted here with permission of the IEEE. Such permission of the IEEE does not in a
   
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  rtp.pdf

  Columbia CS 6181
  

  RTP 1 Real-Time Transport Protocol (RTP) August 12, 2001 RTP 2 RTP protocol goals mixers and translators control: awareness, QOS feedback media adaptation August 12, 2001 RTP 3 RTP the big picture application media encapsulation RTP
   
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  video.pdf

  Columbia CS 6181
  

  Video 1 Video October 16, 2001 Video 2 Event-based programs read() is blocking server only works with single socket audio, network input need I/O multiplexing event-based programming also need to handle time-outs, connection requests all
   
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  voip.pdf

  Columbia CS 6181
  

  VoIP 1 Voice over IP Henning Schulzrinne Columbia University, New York schulzrinne@cs.columbia.edu c 1998-2001, Henning Schulzrinne; updated August 12, 2001 August 12, 2001 VoIP 2 Overview new Internet services: telephone, radio, television
   
• 
  Rose0003_Integrating.pdf

  Columbia CS 6181
  

  INFOCOM 2000 1 Integrating Packet FEC into Adaptive Voice Playout Buffer Algorithms on the Internet Jonathan Rosenberg, Lili Qiu, Henning Schulzrinne dynamicsoft, Cornell University, Columbia University jdrosen@dynamicsoft.com, lqiu@cs.cornell.edu,
   
• 
  Schu9207_Voice.pdf

  Columbia CS 6181
  

  Voice Communication Across the Internet: A Network Voice Terminal Henning Schulzrinne Department of Electrical and Computer Engineering Department of Computer Science University of Massachusetts Amherst, MA 01003 hgschulz@cs.umass.edu July 29, 1992
   
• 
  Schu03_IP.pdf

  Columbia CS 6181
  

  1 Internet Telephony Henning Schulzrinne, Columbia University CONTENTS Abstract Internet telephony, also known as voice-over-IP, replaces and complements the existing circuitswitched public telephone network with a packet-based infrastructure. While
   
• 
  sip_long.pdf

  Columbia CS 6181
  

  hgs/SIP Tutorial 1 The Session Initiation Protocol (SIP) Henning Schulzrinne Dept. of Computer Science Columbia University New York, New York (sip:)schulzrinne@cs.columbia.edu May 2001 hgs/SIP Tutorial 2 Overview protocol architecture typical
   
• 
  telephone1.pdf

  Columbia CS 6181
  

  1 The Public Switched Telephone System 2 Historical perspective 1876 1915 1920s 1956 1962 1965 1974 1977 1980s 1990s 1992 invention of telephone rst transcontinental telephone (NYSF) rst automatic switches TAT-1 transatlantic cable (35 lines) digi
   
• 
  qos.pdf

  Columbia CS 6181
  

  QoS 1 Quality of Service August 12, 2001 QoS 2 Overview network impairments and congestion current status measurements (Loosely based on Brian Carpenters slides) August 12, 2001 QoS 3 Fundamental Limits Shannon channel capacity with Gau
   
• 
  diffserv.pdf

  Columbia CS 6181
  

  Diff-Serv 1 Differentiated Services QoS Problem Diffserv Architecture Per hop behaviors November 27, 2001 Diff-Serv 2 Problem: QoS Need a mechanism for QoS in the Internet Issues to be resolved: Indication of desired service Denition of
   
• 
  rsvp.pdf

  Columbia CS 6181
  

  RSVP 1 Resource Control and Reservation October 30, 2001 RSVP 2 Resource Control and Reservation policing: hold sources to committed resources scheduling: isolate ows, guarantees resource reservation: establish ows October 30, 2001 RSVP 3
   
• 
  Sisa9807_Loss.pdf

  Columbia CS 6181
  

  The Loss-Delay Based Adjustment Algorithm: A TCP-Friendly Adaptation Scheme Dorgham Sisalem GMD-Fokus, Berlin sisalem@fokus.gmd.de Henning Schulzrinne Columbia University, New York schulzrinne@cs.columbia.edu Abstract Many distributed multimedia app
   
• 
  intro.ppt

  Columbia CS 6181
  

  Advanced Internet Services Henning Schulzrinne Dept. of Computer Science Columbia University Fall 2003 Overview Course outline Prerequisites Assignments Projects Exams Course outline: Internet multimedia Review of Internet architecture
   
• 
  internet.ppt

  Columbia CS 6181
  

  Modern Internet architecture & technology Advanced Internet Services Dept. of Computer Science Columbia University Henning Schulzrinne Fall 2003 Internet applications Variations on three themes distinguish protocol vs. application behavior
   
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  standardization.ppt

  Columbia CS 6181
  

  Standardization Henning Schulzrinne Dept. of Computer Science Columbia University Fall 2003 Standards Mandatory vs. voluntary Allowed to use vs. likely to sell Example: health & safety standards UL listing for electrical appliances, fire codes
   
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  infrastructure.ppt

  Columbia CS 6181
  

  Internet infrastructure and access Henning Schulzrinne Dept. of Computer Science Columbia University Fall 2003 Internet backbones Classify ISPs into tiers tier 1: global reach, about 40 British Telecom (BT), Cable & Wireless, Global Crossing,
   
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  nat.ppt

  Columbia CS 6181
  

  NATs (Network Address Translators) Henning Schulzrinne Dept. of Computer Science Columbia University Fall 2003 NATs Network address translation = local, LAN-specific address space translated to small number of globally routable IP addresses Moti
   
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  multicast.ppt

  Columbia CS 6181
  

  Multicast Henning Schulzrinne Dept. of Computer Science Columbia University Fall 2003 Overview IP multicast service models any source, source-specific multicast, Multicast protocol components address assignment local group management intr
   
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  audio.ppt

  Columbia CS 6181
  

  Audio Henning Schulzrinne Dept. of Computer Science Columbia University Fall 2003 Common narrowband audio codecs Codec rate (kb/s) delay (ms) multi-rate embedd ed VBR bit-robust/ PLC remarks iLBC Speex AMR-NB G.729 GSM-FR GSM-EFR G.728 G.723.1 15.
   
• 
  windows_audio.ppt

  Columbia CS 6181
  

  Windows audio architecture Win MM Application WinMM.DLL DirectSound Application DSound.DLL User Mode Kernel Mode Windows Driver Model supported by Win 98, Win ME, Win 2K and Win XP a single audio driver works for multiple Windows versions Direc
   
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  video.ppt

  Columbia CS 6181
  

  Digital video Henning Schulzrinne Columbia University Fall 2003 Video sources VGA video (computer video output) component video R, G, B + H (horizontal sync), V (vertical sync) NTSC or PAL coded color composite or component video scanners, copi
   
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  rtp-playout.ppt

  Columbia CS 6181
  

  RTP and playout delay compensation Henning Schulzrinne Dept. of Computer Science Columbia University Fall 2003 RTP packet header 0 1 2 3 01234567890123456789012345678901 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |V=2|P|X| CC
   
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  congestion-control.ppt

  Columbia CS 6181
  

  Congestion control for multimedia Henning Schulzrinne Dept. of Computer Science Columbia University Fall 2003 Motivation Absence of resource reservation Thus, only end-to-end congestion control prevents congestion collapse Dont want to favor one
   
• 
  VoIP.ppt

  Columbia CS 6181
  

  Internet Telephony (VoIP) Henning Schulzrinne Dept. of Computer Science Columbia University Fall 2003 Overview new Internet services: telephone, radio, television why Internet telephony? why not already? Internet telephony modalities component
   
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  quality-of-service.ppt

  Columbia CS 6181
  

  Internet Quality-of-Service (QoS) Henning Schulzrinne Columbia University Fall 2003 Quality of Service Motivation Service availability Elementary queueing theory Traffic characterization & control Integrated services (RSVP, NSIS) Differentiat