| Presentation | 2020-11-18 DCT Compression considering Spatial Correlation for WSNs Kohei Natsume, Mai Ohta, Koichi Adachi, Osamu Takyu, Takeo Fujii, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In wireless sensor networks (WSNs), it is necessary to reduce power consumption of sensor nodes (SNs) for realizing a long-life network. The data compression techniques can effectively reduce power consumption at an SN. For limitations of power and processing resources, a simple and high performance compression method should be chosen. In this paper, we propose a discrete cosine transform (DCT) compression technique considering spatial correlation. The proposed method sorts a series of SNs to minimize the spatial Euclidean distance between SNs. The computer simulation using actual measured temperature in a room evaluates the data reconstruction accuracy of the conventional DCT and the proposed method. The simulation results show that the proposed method can improve the data reconstruction accuracy. When the allowable error is set at 0.5 [degree Celsius], compared with the conventional DCT, the data that achieves allowable error improve more than 10 [%]. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Wireless sensor networks / Data compression |
| Paper # | SR2020-30 |
| Date of Issue | 2020-11-11 (SR) |
| Conference Information | |
| Committee | SR |
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| Conference Date | 2020/11/18(3days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Software Radio, Cognitive Radio, Spectrum Sharing, etc. |
| Chair | Masayuki Ariyoshi(NEC) |
| Vice Chair | Suguru Kameda(Tohoku Univ.) / Osamu Takyu(Shinshu Univ.) / Kentaro Ishidu(NICT) |
| Secretary | Suguru Kameda(ATR) / Osamu Takyu(Univ. of Electro-Comm.) / Kentaro Ishidu(Mie Univ.) |
| Assistant | Mai Ohta(Fukuoka Univ.) / Teppei Oyama(Fujitsu Lab.) / Kentaro Kobayashi(Nagoya Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Smart Radio |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | DCT Compression considering Spatial Correlation for WSNs |
| Sub Title (in English) | |
| Keyword(1) | Wireless sensor networks |
| Keyword(2) | Data compression |
| 1st Author's Name | Kohei Natsume |
| 1st Author's Affiliation | The University of Electro-Communication(UEC) |
| 2nd Author's Name | Mai Ohta |
| 2nd Author's Affiliation | Fukuoka University(Fukuoka Univ.) |
| 3rd Author's Name | Koichi Adachi |
| 3rd Author's Affiliation | The University of Electro-Communication(UEC) |
| 4th Author's Name | Osamu Takyu |
| 4th Author's Affiliation | Shinshu University(Shinshu Univ.) |
| 5th Author's Name | Takeo Fujii |
| 5th Author's Affiliation | The University of Electro-Communication(UEC) |
| Date | 2020-11-18 |
| Paper # | SR2020-30 |
| Volume (vol) | vol.120 |
| Number (no) | SR-238 |
| Page | pp.pp.50-55(SR), |
| #Pages | 6 |
| Date of Issue | 2020-11-11 (SR) |