SoftCast: Clean-slate scalable wireless video
Video broadcast and mobile video challenge the conventional wireless design. In broadcast and mobile scenarios the bit rate supported by the channel differs across receivers and varies quickly over time. The conventional design however forces the source to pick a single bit rate and degrades sharply...
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| Format: | Article |
| Language: | English |
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Institute of Electrical and Electronics Engineers (IEEE)
2020
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| Online Access: | https://hdl.handle.net/1721.1/124378 |
| _version_ | 1826192267578179584 |
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| author | Jakubczak, Szymon Kazimierz Katabi, Dina |
| author2 | Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science |
| author_facet | Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science Jakubczak, Szymon Kazimierz Katabi, Dina |
| author_sort | Jakubczak, Szymon Kazimierz |
| collection | MIT |
| description | Video broadcast and mobile video challenge the conventional wireless design. In broadcast and mobile scenarios the bit rate supported by the channel differs across receivers and varies quickly over time. The conventional design however forces the source to pick a single bit rate and degrades sharply when the channel cannot not support the chosen bit rate. This paper presents an overview of SoftCast, a clean-slate design for wireless video where the source transmits one video stream that each receiver decodes to a video quality commensurate with its specific instantaneous channel quality. To do so, SoftCast ensures the samples of the digital video signal transmitted on the channel are linearly related to the pixels' luminance. Thus, when channel noise perturbs the transmitted signal samples, the perturbation naturally translates into approximation in the original video pixels. Hence, a receiver with a good channel (low noise) obtains a high fidelity video, and a receiver with a bad channel (high noise) obtains a low fidelity video. |
| first_indexed | 2024-09-23T09:08:53Z |
| format | Article |
| id | mit-1721.1/124378 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T09:08:53Z |
| publishDate | 2020 |
| publisher | Institute of Electrical and Electronics Engineers (IEEE) |
| record_format | dspace |
| spelling | mit-1721.1/1243782022-09-26T10:45:56Z SoftCast: Clean-slate scalable wireless video Jakubczak, Szymon Kazimierz Katabi, Dina Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science Video broadcast and mobile video challenge the conventional wireless design. In broadcast and mobile scenarios the bit rate supported by the channel differs across receivers and varies quickly over time. The conventional design however forces the source to pick a single bit rate and degrades sharply when the channel cannot not support the chosen bit rate. This paper presents an overview of SoftCast, a clean-slate design for wireless video where the source transmits one video stream that each receiver decodes to a video quality commensurate with its specific instantaneous channel quality. To do so, SoftCast ensures the samples of the digital video signal transmitted on the channel are linearly related to the pixels' luminance. Thus, when channel noise perturbs the transmitted signal samples, the perturbation naturally translates into approximation in the original video pixels. Hence, a receiver with a good channel (low noise) obtains a high fidelity video, and a receiver with a bad channel (high noise) obtains a low fidelity video. 2020-03-27T13:53:04Z 2020-03-27T13:53:04Z 2011-02 2010-09 2019-06-06T13:28:26Z Article http://purl.org/eprint/type/ConferencePaper 9781424482153 https://hdl.handle.net/1721.1/124378 Jakubczak, Szymon, and Dina Katabi. “SoftCast: Clean-Slate Scalable Wireless Video.” 2010 48th Annual Allerton Conference on Communication, Control, and Computing (Allerton), September, 2010, Allerton, Illinois, IEEE, 2010: 530–33. en http://dx.doi.org/10.1109/allerton.2010.5706952 48th Annual Allerton Conference on Communication, Control, and Computing Creative Commons Attribution-Noncommercial-Share Alike http://creativecommons.org/licenses/by-nc-sa/4.0/ application/pdf Institute of Electrical and Electronics Engineers (IEEE) MIT web domain |
| spellingShingle | Jakubczak, Szymon Kazimierz Katabi, Dina SoftCast: Clean-slate scalable wireless video |
| title | SoftCast: Clean-slate scalable wireless video |
| title_full | SoftCast: Clean-slate scalable wireless video |
| title_fullStr | SoftCast: Clean-slate scalable wireless video |
| title_full_unstemmed | SoftCast: Clean-slate scalable wireless video |
| title_short | SoftCast: Clean-slate scalable wireless video |
| title_sort | softcast clean slate scalable wireless video |
| url | https://hdl.handle.net/1721.1/124378 |
| work_keys_str_mv | AT jakubczakszymonkazimierz softcastcleanslatescalablewirelessvideo AT katabidina softcastcleanslatescalablewirelessvideo |