| Presentation | 2004/3/8 A Study of the Latency Reduction and the Mitigation of Quality Degradation in Mobile Communication Systems Masaru HONJO, Takaya YAMAZATO, Tadahiro WADA, Hiraku OKADA, Masaaki KATAYAMA, Akira OGAWA, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | A latency, defined as the time elapse between the beginning of data transmission and the retrieval of the transmitted data by a receiver, is very important performance index similar to data rate and quality in mobile communication systems. In this paper, we discuss a system design concept to reduce the latency while minimising the performance degradation. To do so, we first define a "transitional state" and "stable state." The transitional state is the state that the data is receiving. So it is impossible for the receiver to start processing until all the data is received to be ready. The stable state is the state that actual process is carried out. We reduce the latency by a processing during the transitional state. Unfortunately, such output can not avoid the quality degradation. We will then discuss how to minimise the degradation by an introduction of differential source coding. We will show that when the autocorrelation function of input data is high, the degradation by the reduction of latency can be minimised. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | mobile communication / latency / real time wireless transmission / differential source coding / communication quality |
| Paper # | CAS2003-125,DSP2003-227,CS2003-177 |
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| Conference Information | |
| Committee | DSP |
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| Conference Date | 2004/3/8(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Digital Signal Processing (DSP) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Study of the Latency Reduction and the Mitigation of Quality Degradation in Mobile Communication Systems |
| Sub Title (in English) | |
| Keyword(1) | mobile communication |
| Keyword(2) | latency |
| Keyword(3) | real time wireless transmission |
| Keyword(4) | differential source coding |
| Keyword(5) | communication quality |
| 1st Author's Name | Masaru HONJO |
| 1st Author's Affiliation | KDDI R&D Laboratories Inc.() |
| 2nd Author's Name | Takaya YAMAZATO |
| 2nd Author's Affiliation | Center for Information Media Studies, Nagoya University |
| 3rd Author's Name | Tadahiro WADA |
| 3rd Author's Affiliation | Department of Electrical and Electronic Engineering, Shizuoka University |
| 4th Author's Name | Hiraku OKADA |
| 4th Author's Affiliation | Center for Information Media Studies, Nagoya University |
| 5th Author's Name | Masaaki KATAYAMA |
| 5th Author's Affiliation | Center for Information Media Studies, Nagoya University |
| 6th Author's Name | Akira OGAWA |
| 6th Author's Affiliation | Department of Information Science, School of Science and Technology, Meijo University |
| Date | 2004/3/8 |
| Paper # | CAS2003-125,DSP2003-227,CS2003-177 |
| Volume (vol) | vol.103 |
| Number (no) | 718 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |