| Presentation | 2015-11-05 Power Saving Methods to Collect Rateless Coded Packets for Wireless Sensor Networks Yuki Igarashi, Kazuhiko Fukawa, Yuyuan Chang, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This report proposes power saving methods to collect rateless coded packets for wireless sensor networks.The rateless code has been applied to data gathering in wireless sensor networks.Since encoding of the rateless code is based on bitwise exclusive OR, the application of the rateless code can reduce an amount of computational complexity and power consumption. In addition, it is well known that the performance of the rateless code asymptotically approaches that of the LT (Luby Transform) code as the number of packets to be transmit for the encoding increases without any bit errors.When bit errors occur, however, transmitting many packets can deteriorate the BER performance.To alleviate the BER degradation, the proposed schemes minimize the number of packets to be transmit and thus can reduce power consumption.In addition, the schemes exploit some uncoded packets and perform soft decision decoding using bit log likelihood ratios so as to improve the BER performance furthermore.Computer simulations under fading conditions are conducted and demonstrate that the proposed schemes can improve BER of the conventional scheme by more than one order of magnitude. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | wireless sensor network / rateless code / soft decision decoding / number of packets / power saving |
| Paper # | RCS2015-209 |
| Date of Issue | 2015-10-28 (RCS) |
| Conference Information | |
| Committee | AP / RCS / WPT / SAT |
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| Conference Date | 2015/11/4(3days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Okinawa Prefectural Museum & Art Museum |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Antenna and Propagation, Radio Communication, Satelite Communication, Wireless Power Transfer |
| Chair | Keizo Cho(Chiba Inst. of Tech.) / Makoto Taromaru(Fukuoka Univ.) / Naoki Shinohara(Kyoto Univ.) / Morio Toyoshima(NICT) |
| Vice Chair | Hisato Iwai(Doshisha Univ.) / Hidekazu Murata(Kyoto Univ.) / Satoshi Denno(Okayama Univ.) / Yukitoshi Sanada(Keio Univ.) / / Takatoshi Sugiyama(Kogakuin Univ.) / Toshinori Susuki(Tohoku Gakuin Univ.) |
| Secretary | Hisato Iwai(KDDI R&D Labs.) / Hidekazu Murata(Niigata Univ.) / Satoshi Denno(Mitsubishi Electric) / Yukitoshi Sanada(NTT DoCoMo) / (Kagoshima Univ.) / Takatoshi Sugiyama(Toyohashi Univ. of Tech.) / Toshinori Susuki(NICT) |
| Assistant | Yuichi Kimura(Saitama Univ.) / Jun Mashino(NTT) / Tetsuya Yamamoto(Panasonic) / Takamichi Inoue(NEC) / Tomoya Tandai(Toshiba) / Toshihiko Nishimura(Hokkaido Univ.) / Takashi Hikagae(Hokkaido Univ.) / Tsunayuki Yamamoto(Yamaguchi Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Antennas and Propagation / Technical Committee on Radio Communication Systems / Technical Committee on Wireless Power Transfer / Technical Committee on Satellite Telecommunications |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Power Saving Methods to Collect Rateless Coded Packets for Wireless Sensor Networks |
| Sub Title (in English) | |
| Keyword(1) | wireless sensor network |
| Keyword(2) | rateless code |
| Keyword(3) | soft decision decoding |
| Keyword(4) | number of packets |
| Keyword(5) | power saving |
| 1st Author's Name | Yuki Igarashi |
| 1st Author's Affiliation | Tokyo Institute of Technology(Tokyo Tech) |
| 2nd Author's Name | Kazuhiko Fukawa |
| 2nd Author's Affiliation | Tokyo Institute of Technology(Tokyo Tech) |
| 3rd Author's Name | Yuyuan Chang |
| 3rd Author's Affiliation | Tokyo Institute of Technology(Tokyo Tech) |
| Date | 2015-11-05 |
| Paper # | RCS2015-209 |
| Volume (vol) | vol.115 |
| Number (no) | RCS-288 |
| Page | pp.pp.115-120(RCS), |
| #Pages | 6 |
| Date of Issue | 2015-10-28 (RCS) |