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TR 99-028 Error Spreading : A Perception-Driven Approach Orthogonal to Error Handling in Continuous Media Streaming
| Content Provider | Semantic Scholar |
|---|---|
| Author | Srivatsan Varadarajan Ngo, Hung Quoc Srivastava, Jaideep |
| Copyright Year | 1999 |
| Abstract | With the growing popularity of the Internet, there is increasing int erest in using it for audio and video transmission. Periodic network overloads, leading to bursty packet lo sses, have always been a key problem for network researchers. In a long-haul, heterogeneous network like the Inter net, handling such an error becomes especially difficult. Perceptual studies of audio and video viewing have sh own that bursty losses have the most annoying effect on people, and hence are critical issues to be addressed for appli cations such as Internet phone, video conferencing, distance learning, etc. Classical error handling techniqu es have focused on applications like FTP, and are geared towards ensuring that the transmission is correct , with no attention to timeliness. For isochronous traffic like audio and video, timeliness is a key criterion , and given the high degree of content redundancy, some loss of content is quite acceptable. In this paper we intr oduce the concept of error spreading, which is a transformation technique that takes the input sequence of packets (from an audio or video stream) and scrambles its packets before transmission. The packets are unscrambled at t he receiving end. The transformation is designed to ensure that bursty losses in the transformed domain get spread all over the sequence in the original domain. Our error spreading idea deals with either cases wher e the stream has or does not have inter-frame dependencies. Perceptual studies have shown that users are much m ore tolerant of a uniformly distributed loss of low magnitude. We next describe a continuous med ia transmission protocol based on this idea. We also show that our protocol can be used complementary to other error h andling protocols. Lastly, we validate its performance through a series of experiments and simulation s. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | https://www.cs.umn.edu/sites/cs.umn.edu/files/tech_reports/99-028.pdf |
| Alternate Webpage(s) | http://www.cse.buffalo.edu/~hungngo/papers/es.ps |
| Alternate Webpage(s) | https://www.cse.buffalo.edu//~hungngo/papers/es.pdf |
| Alternate Webpage(s) | http://www.cs.umn.edu/tech_reports_upload/tr1999/99-028.pdf |
| Alternate Webpage(s) | http://www.cse.buffalo.edu/~hungngo/papers/es.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
