The issues involved in Internet telephony (Voice over Internet Protocol (VoIP)
device) can be best understood by actually implementing a VoIP device and
studying its performance. In this regard, an Internet telephony device, providing full
duplex voice communication over internet, and a user interface program have been
developed. In the process, a number of implementation issues came into focus,
which we have touched upon in this thesis.
Transport layer network protocols are discussed in the concept of real time
streaming applications and Real Time Protocol (RTP) is modified to use as transport
layer protocol in developed VoIP device. Adaptive playout buffering algorithms are
studied and compared with each other by trace driven simulation experiments with objective measures. A method to solve clock synchronization problem in streaming
internet applications is presented.
One way and round trip delay measurement functionalities are added to the VoIP
device, so that device can be used to investigate the network characteristics.
| Identifer | oai:union.ndltd.org:METU/oai:etd.lib.metu.edu.tr:http://etd.lib.metu.edu.tr/upload/1223148/index.pdf |
| Date | 01 December 2003 |
| Creators | Celikadam, Turgut |
| Contributors | Ergul, Faruk Ruyal |
| Publisher | METU |
| Source Sets | Middle East Technical Univ. |
| Language | English |
| Detected Language | English |
| Type | M.S. Thesis |
| Format | text/pdf |
| Rights | To liberate the content for public access |
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