| Presentation | 2014-11-20 Highly Reliable UWB-OFDM Wireless Transmission within an Ultra-Small Spacecraft Tsubasa MATSUSHITA, Atsushi TOMIKI, Takehiko KOBAYASHI, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This report described measurements and characterization of ultra-wideband (UWB) radio propagation within a small scientific satellite and simulation of transmission performance based on propagation measurements, with a view to (at least partly) replacing wired on-board data buses with wireless communications. Adoption of wireless technologies within spacecrafts could contribute to (i) reduction of cable weight and resulting launching cost, (ii) reduction in the cost of manufacture and test, (iii) ensuring reliable robust communication due to effect of route diversity, (iv) more flexibility in layout of subsystems, and (v) more reliable connection at rotary, moving, and sliding joints. However, narrowband wireless communication systems yield dead spot and intersymbol interference (ISI) due to multipath propagation, particularly in metal-enclosed spaces such as inside of satellites. To apply wireless communication within satellites, a combination of UWB and orthogonal frequency division multiplexing (OFDM) overcomes the dead spots and ISI. Bit error rate (BER) performance of the UWB-OFDM wireless transmission was evaluated through simulation using measured propagation data. Simulation results revealed that the system attained BER ≦ 10^<-5> at 400 Mb/s in all measurement points while ensuring a margin of approximately 15 dB to -41.25-dBm/MHz equivalent isotropic radiated power. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | spacecraft data buses / enclosed space / ultra wideband / OFDM |
| Paper # | RCC2014-64 |
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| Committee | RCC |
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| Conference Date | 2014/11/13(1days) |
| Place (in Japanese) | (See Japanese page) |
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| Topics (in Japanese) | (See Japanese page) |
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| Registration To | Reliable Communication and Control (RCC) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Highly Reliable UWB-OFDM Wireless Transmission within an Ultra-Small Spacecraft |
| Sub Title (in English) | |
| Keyword(1) | spacecraft data buses |
| Keyword(2) | enclosed space |
| Keyword(3) | ultra wideband |
| Keyword(4) | OFDM |
| 1st Author's Name | Tsubasa MATSUSHITA |
| 1st Author's Affiliation | Wireless Systems Laboratory, Tokyo Denki University:Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency() |
| 2nd Author's Name | Atsushi TOMIKI |
| 2nd Author's Affiliation | Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency |
| 3rd Author's Name | Takehiko KOBAYASHI |
| 3rd Author's Affiliation | Wireless Systems Laboratory, Tokyo Denki University |
| Date | 2014-11-20 |
| Paper # | RCC2014-64 |
| Volume (vol) | vol.114 |
| Number (no) | 317 |
| Page | pp.pp.- |
| #Pages | 6 |
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