| Presentation | 2007-11-02 Proposal of VPFDM demodulator resistant to both Tx/Rx polarization rotations(Receiver Technology) Fumihiro YAMASHITA, Junichi ABE, Kiyoshi KOBAYASHI, Kohei OHATA, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Authors have proposed Variable Polarization Frequency Division Multiplexing (VPFDM) and a demodulator that cancels the cross-polarization interference in the forward link (Rx-VPFDM) in the previous work. This paper proposes a new VPFDM demodulator that can cancel the cross-polarization interference created by not only polarization rotation at the receiver side but also polarization rotation at the transmitter side. From a theoretical analysis of Tx-VPFDM, we propose to add a pre-AFC in front of the current VPFDM demodulator to remove the frequency offset of the satellite and base station before interference cancellation. Due to this additional AFC, the new VPFDM demodulator can be applied to not only Rx-VPFDM systems but also Tx-VPFDM systems. Its performance is evaluated by satellite experiments. The experiments show that the degradation in BER performance is less than 0.5 dB and we conclude that the proposed VPFDM configuration is practical for VPFDM system application. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Satellite communications / Ku band / Polarization / Interference Canceller / VPFDM |
| Paper # | SAT2007-44 |
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| Conference Information | |
| Committee | SAT |
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| Conference Date | 2007/10/25(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Satellite Telecommunications (SAT) |
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| Language | ENG |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Proposal of VPFDM demodulator resistant to both Tx/Rx polarization rotations(Receiver Technology) |
| Sub Title (in English) | |
| Keyword(1) | Satellite communications |
| Keyword(2) | Ku band |
| Keyword(3) | Polarization |
| Keyword(4) | Interference Canceller |
| Keyword(5) | VPFDM |
| 1st Author's Name | Fumihiro YAMASHITA |
| 1st Author's Affiliation | NTT Access Network Service Systems Laboratories, NTT Corporation() |
| 2nd Author's Name | Junichi ABE |
| 2nd Author's Affiliation | NTT Access Network Service Systems Laboratories, NTT Corporation |
| 3rd Author's Name | Kiyoshi KOBAYASHI |
| 3rd Author's Affiliation | NTT Access Network Service Systems Laboratories, NTT Corporation |
| 4th Author's Name | Kohei OHATA |
| 4th Author's Affiliation | NTT Access Network Service Systems Laboratories, NTT Corporation |
| Date | 2007-11-02 |
| Paper # | SAT2007-44 |
| Volume (vol) | vol.107 |
| Number (no) | 299 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |